2921 lines
127 KiB
HTML
2921 lines
127 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<meta name="description" content="This article shares insights into why Autoscaling isn’t a silver bullet, how to optimize autoscaling configurations, and real-world challenges and solutions.">
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<meta name="keywords" content="AWS, Autoscaling, Performance">
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<meta property="og:description" content="This article shares insights into why Autoscaling isn’t a silver bullet, how to optimize autoscaling configurations, and real-world challenges and solutions.">
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<meta property="og:site_name" content="dzone.com">
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<meta property="og:title" content="Why EC2 Autoscaling Isn’t a Silver Bullet">
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<meta property="og:url" content="https://dzone.com/articles/why-ec2-autoscaling-isnt-a-silver-bullet">
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<meta property="og:image" content="https://dz2cdn1.dzone.com/storage/article-thumb/18115188-thumb.jpg">
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<meta property="og:type" content="article">
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<meta name="twitter:site" content="@DZoneInc">
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<meta name="twitter:image" content="https://dz2cdn1.dzone.com/storage/article-thumb/18115188-thumb.jpg">
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<meta name="twitter:card" content="summary_large_image">
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<meta name="twitter:description" content="This article shares insights into why Autoscaling isn’t a silver bullet, how to optimize autoscaling configurations, and real-world challenges and solutions.">
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<meta name="twitter:title" content="Why EC2 Autoscaling Isn’t a Silver Bullet">
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<meta name="referrer" content="origin-when-cross-origin">
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<meta name="google-site-verification" content="kndbhxcupfEqWmZclhCpB6vlgOs7QSmx2UHAGGnP2mA">
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<meta name="df-verify" content="df0d76632b4543">
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<link rel="icon" type="image/x-icon" href="https://dz2cdn1.dzone.com/themes/dz20/images/favicon.png">
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<link rel="image_src" href="https://dz2cdn1.dzone.com/storage/article-thumb/18115188-thumb.jpg">
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<link rel="canonical" href="https://dzone.com/articles/why-ec2-autoscaling-isnt-a-silver-bullet">
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<title>Why EC2 Autoscaling Isn’t a Silver Bullet</title>
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<link rel="preload" href="https://dz2cdn1.dzone.com/themes/dz20/font/fontello.woff?11773374" as="font" type="font/woff" crossorigin="anonymous">
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<link rel="stylesheet" media="all" href="https://dz2cdn1.dzone.com/themes/dz20/ftl/icons.css">
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<link rel="stylesheet" media="all" href="https://dz2cdn1.dzone.com/themes/dz20/lib/static/bootstrap/bootstrap.min.css">
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<link rel="stylesheet" media="all" href="https://dz2cdn1.dzone.com/themes/dz20/ftl/article/global.css">
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<link rel="stylesheet" media="all" href="https://dz2cdn1.dzone.com/themes/dz20/ftl/header-updated/styles.css">
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<style>
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:root {
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--xs-size: 2px;
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--sm-size: 5px;
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--md-size: 10px;
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--lg-size: 15px;
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--xl-size: 25px;
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--sm-border-size: 8px;
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--sm-font-size: 13px;
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--sm-plus-font-size: 16px;
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--md-font-size: 18px;
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--lg-font-size: 22px;
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--xl-font-size: 26px;
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}
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/* Display Quick-Access Classes */
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.display-none { display: none; }
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.display-block { display: block; }
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.display-inline { display: inline; }
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.display-inline-block { display: inline-block; }
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/* Margin Quick-Access Classes */
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.m-xs { margin: var(--xs-size); }
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.m-sm { margin: var(--sm-size); }
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.m-md { margin: var(--md-size); }
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.m-lg { margin: var(--lg-size); }
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.m-xl { margin: var(--xl-size); }
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.mt-xs, .my-xs { margin-top: var(--xs-size); }
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.mr-xs, .mx-xs { margin-right: var(--xs-size); }
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.mb-xs, .my-xs { margin-bottom: var(--xs-size); }
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.ml-xs, .mx-xs { margin-left: var(--xs-size); }
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.mt-sm, .my-sm { margin-top: var(--sm-size); }
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.mr-sm, .mx-sm { margin-right: var(--sm-size); }
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.mb-sm, .my-sm { margin-bottom: var(--sm-size); }
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.ml-sm, .mx-sm { margin-left: var(--sm-size); }
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.mt-md, .my-md { margin-top: var(--md-size); }
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.mr-md, .mx-md { margin-right: var(--md-size); }
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.mb-md, .my-md { margin-bottom: var(--md-size); }
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.ml-md, .mx-md { margin-left: var(--md-size); }
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.mt-lg, .my-lg { margin-top: var(--lg-size); }
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.mr-lg, .mx-lg { margin-right: var(--lg-size); }
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.mb-lg, .my-lg { margin-bottom: var(--lg-size); }
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.ml-lg, .mx-lg { margin-left: var(--lg-size); }
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.mt-xl, .my-xl { margin-top: var(--xl-size); }
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.mr-xl, .mx-xl { margin-right: var(--xl-size); }
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.mb-xl, .my-xl { margin-bottom: var(--xl-size); }
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.ml-xl, .mx-xl { margin-left: var(--xl-size); }
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.ml-auto, .mx-auto { margin-left: auto; }
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.mr-auto, .mx-auto { margin-right: auto; }
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.mt-auto, .my-auto { margin-top: auto; }
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.mb-auto, .my-auto { margin-bottom: auto; }
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.my-none, .mt-none { margin-top: 0 !important; }
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||
.mx-none, .mr-none { margin-right: 0 !important; }
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.my-none, .mb-none { margin-bottom: 0 !important; }
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.mx-none, .ml-none { margin-left: 0 !important; }
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/* Padding Quick-Access Classes */
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.p-xs { padding: var(--xs-size); }
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.p-sm { padding: var(--sm-size); }
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.p-md { padding: var(--md-size); }
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.p-lg { padding: var(--lg-size); }
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.p-xl { padding: var(--xl-size); }
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.pt-xs, .py-xs { padding-top: var(--xs-size); }
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.pr-xs, .px-xs { padding-right: var(--xs-size); }
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.pb-xs, .py-xs { padding-bottom: var(--xs-size); }
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.pl-xs, .px-xs { padding-left: var(--xs-size); }
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.pt-sm, .py-sm { padding-top: var(--sm-size); }
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.pr-sm, .px-sm { padding-right: var(--sm-size); }
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.pb-sm, .py-sm { padding-bottom: var(--sm-size); }
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.pl-sm, .px-sm { padding-left: var(--sm-size); }
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.pt-md, .py-md { padding-top: var(--md-size); }
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.pr-md, .px-md { padding-right: var(--md-size); }
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.pb-md, .py-md { padding-bottom: var(--md-size); }
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.pl-md, .px-md { padding-left: var(--md-size); }
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.pt-lg, .py-lg { padding-top: var(--lg-size); }
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.pr-lg, .px-lg { padding-right: var(--lg-size); }
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.pb-lg, .py-lg { padding-bottom: var(--lg-size); }
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.pl-lg, .px-lg { padding-left: var(--lg-size); }
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.pt-xl, .py-xl { padding-top: var(--xl-size); }
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.pr-xl, .px-xl { padding-right: var(--xl-size); }
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.pb-xl, .py-xl { padding-bottom: var(--xl-size); }
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.pl-xl, .px-xl { padding-left: var(--xl-size); }
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||
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||
.py-none, .pt-none { padding-top: 0 !important; }
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.px-none, .pr-none { padding-right: 0 !important; }
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||
.py-none, .pb-none { padding-bottom: 0 !important; }
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.px-none, .pl-none { padding-left: 0 !important; }
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||
/* Flex Quick-Access Classes */
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||
.flex {
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display: flex;
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}
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.flex-column {
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display: flex;
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flex-direction: column;
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}
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||
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.flex-column-reverse {
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||
display: flex;
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flex-direction: column-reverse;
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||
}
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||
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.flex-row {
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display: flex;
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flex-direction: row;
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||
}
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||
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.flex-row-reverse {
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display: flex;
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flex-direction: row-reverse;
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}
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.flex-wrap {
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flex-wrap: wrap;
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}
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.flex-grow {
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flex-grow: 1;
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}
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.align-center { align-items: center; }
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.align-end { align-items: flex-end; }
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.content-center {
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align-content: center;
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}
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.justify-center { justify-content: center; }
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.justify-start { justify-content: flex-start; }
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.justify-end { justify-content: flex-end; }
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.justify-around { justify-content: space-around; }
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.justify-between { justify-content: space-between; }
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.justify-evenly { justify-content: space-evenly; }
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||
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.gap-sm { gap: var(--sm-size); }
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.gap-md { gap: var(--md-size); }
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||
.gap-lg { gap: var(--lg-size); }
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.gap-xl { gap: var(--xl-size); }
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/* Display Quick-Access Classes */
|
||
.inline-block { display: inline-block; }
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||
|
||
/* Font Quick-Access Classes */
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||
.font-xl { font-size: var(--xl-font-size); }
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.font-lg { font-size: var(--lg-font-size); }
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.font-md { font-size: var(--md-font-size); }
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.font-sm-plus { font-size: var(--sm-plus-font-size); }
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.font-sm { font-size: var(--sm-font-size); }
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||
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||
.font-strike { text-decoration: line-through; }
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||
.font-underline { text-decoration: underline; }
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||
.font-overline { text-decoration: overline; }
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||
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||
.font-italic { font-style: italic; }
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||
.font-bold { font-weight: bold; }
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||
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||
.font-black { color: #000000; }
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||
.font-white { color: #ffffff; }
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||
.font-gray { color: var(--brand-gray-text); }
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||
.font-danger { color: var(--header-dropdown-button-bg-danger); }
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||
.font-center { text-align: center; }
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||
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||
.no-wrap { white-space: nowrap; }
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||
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||
/* Consistent headings between h and non-h tags */
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||
.heading {
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||
margin-top: 0;
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||
margin-bottom: var(--md-size);
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||
}
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||
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||
.heading.font-xl { line-height: var(--xl-font-size); }
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||
.heading.font-lg { line-height: var(--lg-font-size); }
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||
.heading.font-md { line-height: var(--md-font-size); }
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||
.heading.font-sm-plus { line-height: var(--sm-plus-font-size); }
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||
.heading.font-sm { line-height: var(--sm-font-size); }
|
||
|
||
/* Font Clamp Quick-Access Classes */
|
||
.line-clamp,
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||
.line-clamp-2,
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||
.line-clamp-3,
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||
.line-clamp-4,
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||
.line-clamp-5 {
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||
display: -webkit-box;
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||
-webkit-line-clamp: 4;
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||
-webkit-box-orient: vertical;
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||
overflow: hidden;
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||
text-overflow: ellipsis;
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||
}
|
||
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||
.line-clamp-2 { -webkit-line-clamp: 2 !important; }
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||
.line-clamp-3 { -webkit-line-clamp: 3 !important; }
|
||
.line-clamp-4 { -webkit-line-clamp: 4 !important; }
|
||
.line-clamp-5 { -webkit-line-clamp: 5 !important; }
|
||
|
||
/* User-Select Quick-Access Classes */
|
||
.select-none { user-select: none; }
|
||
|
||
/* Position Quick-Access Classes */
|
||
.absolute { position: absolute; }
|
||
.relative { position: relative; }
|
||
.float-left { float: left; }
|
||
.float-right { float: right; }
|
||
|
||
.pos-top { top: 0; }
|
||
.pos-right { right: 0; }
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||
.pos-bottom { bottom: 0; }
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||
.pos-left { left: 0; }
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||
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||
.va-top { vertical-align: top; }
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||
.va-middle { vertical-align: middle; }
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||
.va-bottom { vertical-align: bottom; }
|
||
|
||
/* Transition Quick-Access Classes */
|
||
.trans-linear-quick {
|
||
transition: all 0.15s linear;
|
||
}
|
||
|
||
/* Background Quick-Access Classes */
|
||
.bg-gray { background: #cccccc; }
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||
.bg-white { background-color: white; }
|
||
.bg-none { background: none; }
|
||
|
||
/* Border Quick-Access Classes */
|
||
.border-gray { border: 1px solid #cccccc; }
|
||
.tab-pane.border-gray { border: 1px solid #ddd; }
|
||
.no-border, .border-none { border: none !important; }
|
||
|
||
.bt-none { border-top: none !important; }
|
||
.br-none { border-right: none !important; }
|
||
.bb-none { border-bottom: none !important; }
|
||
.bl-none { border-left: none !important; }
|
||
|
||
/* Border Radius Quick-Access Classes */
|
||
|
||
.round-t-sm, .round-tl-sm { border-top-left-radius: var(--sm-border-size); }
|
||
.round-t-sm, .round-tr-sm { border-top-right-radius: var(--sm-border-size); }
|
||
.round-b-sm, .round-bl-sm { border-bottom-left-radius: var(--sm-border-size); }
|
||
.round-b-sm, .round-br-sm { border-bottom-right-radius: var(--sm-border-size); }
|
||
.round-sm { border-radius: var(--sm-border-size); }
|
||
.round-fully { border-radius: 50%; }
|
||
|
||
/* Misc Quick-Access Classes */
|
||
.haikei {
|
||
position: relative;
|
||
background-image: url('https://dz2cdn1.dzone.com/themes/dz20/images/polygon-scatter-haikei-shapes.svg');
|
||
background-repeat: no-repeat;
|
||
background-size: cover;
|
||
}
|
||
|
||
.haikei:before {
|
||
content: '';
|
||
position:absolute;
|
||
top: 0;
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||
left: 0;
|
||
width: 100%;
|
||
height: 100%;
|
||
background-color: var(--color-event-background);
|
||
z-index: -1;
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||
}
|
||
|
||
.margin-auto-center {
|
||
display: block;
|
||
margin-left: auto;
|
||
margin-right: auto;
|
||
}
|
||
|
||
.flex-auto-center {
|
||
display: flex;
|
||
margin-left: auto;
|
||
margin-right: auto;
|
||
}
|
||
|
||
.mw-1100 { max-width: 1100px; }
|
||
.mw-1300 { max-width: 1300px; }
|
||
.full-width { width: 100%; }
|
||
|
||
.h-separator {
|
||
background-color: #cccccc;
|
||
height: 1px;
|
||
width: 100%;
|
||
margin: 5px auto;
|
||
}
|
||
|
||
.no-spacing {
|
||
margin: 0 !important;
|
||
padding: 0 !important;
|
||
}
|
||
|
||
.inherit-color { color: inherit; }
|
||
|
||
.inherit-decoration { text-decoration: inherit; }
|
||
|
||
/* Table Quick-Access Classes */
|
||
.table-border-gray tr:not(:last-child) {
|
||
border-bottom: 1px solid #cccccc;
|
||
}
|
||
|
||
table.full-width tr td:last-child {
|
||
width:100%;
|
||
}
|
||
|
||
/* Animation Quick-Access Classes */
|
||
@keyframes anim-spin {
|
||
0% { transform: rotate(0deg); }
|
||
100% { transform: rotate(359deg); }
|
||
}
|
||
|
||
.anim-spin {
|
||
display: inline-block;
|
||
animation: anim-spin 2s infinite linear;
|
||
}
|
||
|
||
.hov-pointer { cursor: pointer; }
|
||
.hov-brighten:hover { filter: brightness(1.2); }
|
||
.hov-darken:hover { filter: brightness(0.95); }
|
||
.hov-underline:hover { text-decoration: underline; }
|
||
|
||
/* Small tweaks related to components when using these styles */
|
||
.nav-tabs {
|
||
border-bottom: none;
|
||
}
|
||
.tab-content > .flex-column.active,
|
||
.tab-content > .flex-row.active {
|
||
display: flex;
|
||
}
|
||
|
||
/* Alpine components with x-cloak should not be visible by default until conditionals kick in */
|
||
[x-cloak] { display: none !important; }
|
||
</style>
|
||
<link rel="stylesheet" media="all" href="https://dz2cdn1.dzone.com/themes/dz20/ftl/alpine-components/modal.css">
|
||
<script defer src="https://dz2cdn1.dzone.com/themes/dz20/lib/alpinejs/3.13.2/cdn.min.js"></script>
|
||
<script>
|
||
document.addEventListener('alpine:init', () => {
|
||
Alpine.store('article', {
|
||
id: null,
|
||
engagement: {
|
||
open: false,
|
||
page: 1,
|
||
users: [],
|
||
additional: true,
|
||
loading: false,
|
||
initializing: false,
|
||
unauthorized: false,
|
||
enqueued: null,
|
||
dequeued: null,
|
||
|
||
reset() {
|
||
this.open = false;
|
||
this.page = 1;
|
||
this.users.splice(0);
|
||
this.additional = true;
|
||
this.loading = false;
|
||
this.initializing = false;
|
||
this.enqueued = null;
|
||
this.dequeued = null;
|
||
},
|
||
|
||
enqueue(user) {
|
||
this.dequeued = null;
|
||
this.enqueued = user;
|
||
},
|
||
|
||
dequeue(user) {
|
||
this.enqueued = null;
|
||
this.dequeued = user;
|
||
},
|
||
|
||
add(user) {
|
||
this.users.push(user);
|
||
this.enqueued = null;
|
||
},
|
||
|
||
remove(user) {
|
||
const index = this.users.findIndex(u => u.id === user.id);
|
||
|
||
if (index !== -1) {
|
||
this.users.splice(index, 1);
|
||
}
|
||
|
||
this.dequeued = null;
|
||
},
|
||
|
||
contains(user) {
|
||
return this.users.filter(u => u.id === user.id).length;
|
||
}
|
||
}
|
||
});
|
||
|
||
Alpine.effect(() => {
|
||
const store = Alpine.store('article');
|
||
if (!store.engagement.additional && store.engagement.enqueued) {
|
||
if (!store.engagement.contains(store.engagement.enqueued)) {
|
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store.engagement.add(store.engagement.enqueued);
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||
}
|
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}
|
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});
|
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|
||
Alpine.effect(() => {
|
||
const store = Alpine.store('article');
|
||
if (store.engagement.page && store.engagement.dequeued) {
|
||
store.engagement.remove(store.engagement.dequeued);
|
||
}
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})
|
||
});
|
||
</script></head>
|
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<body x-data>
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<div class="skybox skybox-closeBtn dz_skybox" data-gpt-slot="skybox" id="div-gpt-ad-1435246566686-99"></div>
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||
<div class="header-top">
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<div class="header-container">
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<div class="pull-left logo-container">
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<div class="logo">
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<a class="inner" href="/">
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<picture>
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<source srcset="https://dz2cdn1.dzone.com/themes/dz20/images/dz_logo_2021_cropped.webp" type="image/webp">
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<source srcset="https://dz2cdn1.dzone.com/themes/dz20/images/dz_logo_2021_cropped.png" type="image/png">
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<img src="https://dz2cdn1.dzone.com/themes/dz20/images/dz_logo_2021_cropped.png" width="181" height="56" alt="DZone">
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<div id="authenticated-block" class="logged-in">
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<div class="welcome-back">Thanks for visiting DZone today,</div>
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<button class="user-avatar">
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<span id="header-username" class="username"></span>
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||
<img id="header-avatar" src="" alt="user avatar">
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</button>
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<div id="user-dropdown" class="browse-user-menu">
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||
<div class="user-content">
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<a id="header-user-plug" href="#" class="user-description"></a>
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<a id="header-user-edit" href="#" class="edit-profile">Edit Profile</a>
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</div>
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<ul class="user-actions">
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<li id="first-user-action">
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<a id="header-dropdown-manage-email" href="#">Manage Email Subscriptions</a>
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<a href="/articles/how-to-submit-a-post-to-dzone?utm_source=DZone&utm_medium=user_dropdown&utm_campaign=how_to_post">
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</a>
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<a href="/articles/dzones-article-submission-guidelines">
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</ul>
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<a id="dropdown-view-profile" href="#" class="view-profile">View Profile</a>
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</div>
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<div class="post-content">
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<button id="post-button" class="post-content--button">
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<span class="post-class">Post</span>
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<i class="icon-plus"></i>
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</button>
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<div id="post-menu" class="posting-links">
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<div class="posting-links-menu">
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<ul>
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<li>
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<img src="https://dz2cdn1.dzone.com/themes/dz20/images/dz-postarticle.svg" width="15" height="18" style="width: 15px; height: 18px;">
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<a href="/content/article/post.html">Post an Article</a>
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</li>
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<li>
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<a id="drafts-link" href="#">Manage My Drafts</a>
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</li>
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</ul>
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</div>
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</div>
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<div id="unauthenticated-block">
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<div class="dz-intro">Over 2 million developers have joined DZone.</div>
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<a href="/users/login.html">Log In</a>
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<a href="/static/registration.html">Join</a>
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</div>
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<a class="join-icon" href="/users/login.html" aria-label="User">
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<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide svg-user lucide-user-icon lucide-user">
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<path d="M19 21v-2a4 4 0 0 0-4-4H9a4 4 0 0 0-4 4v2"></path>
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<circle cx="12" cy="7" r="4"></circle>
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</svg>
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</a>
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</div>
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<script>
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document.addEventListener('alpine:init', () => {
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Alpine.data('searchDrawer', () => ({
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open: false,
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||
query: '',
|
||
minCharsMet: false,
|
||
|
||
toggleVisibility() {
|
||
this.open = !this.open;
|
||
if (this.open) {
|
||
this.$nextTick(() => {
|
||
this.$refs.query.focus();
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||
});
|
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}
|
||
},
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|
||
updateSearchValue() {
|
||
if (!this.query || !this.query.length || this.query.length < 3) {
|
||
this.minCharsMet = false;
|
||
return;
|
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}
|
||
this.minCharsMet = true;
|
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localStorage.setItem('ls.searchValue', this.query);
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||
},
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||
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searchSite() {
|
||
if (this.minCharsMet) {
|
||
window.location = '/search';
|
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}
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}
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}));
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});
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<div class="headerSearch" x-data="searchDrawer()" x-cloak>
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<button class="btn-search dropdown-toggle" x-on:click="toggleVisibility()" aria-label="Search">
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<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide svg-search lucide-search-icon lucide-search">
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<path d="m21 21-4.34-4.34"></path>
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<circle cx="11" cy="11" r="8"></circle>
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</svg>
|
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</button>
|
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<template x-teleport=".header-container">
|
||
<div id="search-drawer" x-show="open" x-on:click.outside="open = false" x-transition>
|
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<div class="search-input">
|
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<input type="text"
|
||
placeholder="Search"
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autofocus="autofocus"
|
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x-model="query"
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||
x-ref="query"
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x-on:input.change="updateSearchValue()"
|
||
x-on:keyup.enter="searchSite()"
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>
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<button x-on:click="searchSite()" x-bind:disabled="!minCharsMet">
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<span>Search</span>
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</button>
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</div>
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<div class="search-footer">
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Please enter at least three characters to search
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</div>
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</div>
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</template>
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</div>
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</div>
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</div> </div>
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<div class="header-bottom">
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<div class="header-bottom-container">
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<a class="resource-link" href="/refcardz">Refcards</a>
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<a class="resource-link" href="/trendreports">Trend Reports</a>
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<div class="resource-link link-menu">
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<a href="/events">Events</a>
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<a href="/events/video-library">Video Library</a>
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</div>
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</div>
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</div>
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<nav class="header-menu-bar">
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<div class="header-menu resource-category">
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<a href="/refcardz">Refcards</a>
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</div>
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<div class="header-menu-separator resource-category-separator"></div>
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<div class="header-menu resource-category">
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<a href="/trendreports">Trend Reports</a>
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</div>
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<div class="header-menu-separator resource-category-separator"></div>
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<div class="header-menu resource-category no-bottom-radius" data-click-activation>
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<p class="menu-label">Events</p>
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<div class="header-menu-items">
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<div class="header-menu-columns">
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<a class="header-menu-item" href="/events">View Events</a>
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<a class="header-menu-item" href="/events/video-library">Video Library</a>
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</div>
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</div>
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</div>
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<div class="header-menu zone-menu" data-click-activation>
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<p class="menu-label">Zones <i class="icon-down-dir icon-closed"></i><i class="icon-right-dir icon-open"></i></p>
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<div class="header-menu-items">
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<div class="header-menu-columns">
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<div class="header-menu-column-item">
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<a class="header-menu-item" href="/culture-and-methodologies">Culture and Methodologies</a>
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<a class="header-menu-item" href="/career-development">Career Development</a>
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<a class="header-menu-item" href="/team-management">Team Management</a>
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<a class="header-menu-item" href="/data-engineering">Data Engineering</a>
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<a class="header-menu-item" href="/ai-ml">AI/ML</a>
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<a class="header-menu-item" href="/big-data">Big Data</a>
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<a class="header-menu-item" href="/data">Data</a>
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<a class="header-menu-item" href="/databases">Databases</a>
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<a class="header-menu-item" href="/iot">IoT</a>
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</div>
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<div class="header-menu-column-item">
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<a class="header-menu-item" href="/software-design-and-architecture">Software Design and Architecture</a>
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<a class="header-menu-item" href="/cloud-architecture">Cloud Architecture</a>
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<a class="header-menu-item" href="/integration">Integration</a>
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<a class="header-menu-item" href="/microservices">Microservices</a>
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<a class="header-menu-item" href="/performance">Performance</a>
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<a class="header-menu-item" href="/security">Security</a>
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</div>
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<div class="header-menu-column-item">
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<a class="header-menu-item" href="/coding">Coding</a>
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<a class="header-menu-item" href="/frameworks">Frameworks</a>
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</div>
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<div class="header-menu-column-item">
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<a class="header-menu-item" href="/testing-deployment-and-maintenance">Testing, Deployment, and Maintenance</a>
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<a class="header-menu-item" href="/deployment">Deployment</a>
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<a class="header-menu-item" href="/devops-and-cicd">DevOps and CI/CD</a>
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<a class="header-menu-item" href="/maintenance">Maintenance</a>
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<a class="header-menu-item" href="/monitoring-and-observability">Monitoring and Observability</a>
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<a class="header-menu-item" href="/testing-tools-and-frameworks">Testing, Tools, and Frameworks</a>
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</div>
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<a class="header-menu-item" href="/hubs/build-ai-agents-that-are-ready-for-production/">Build AI Agents That Are Ready for Production</a>
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</div>
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</div>
|
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</div>
|
||
</div>
|
||
<div class="header-menu parent-category" tabindex="1">
|
||
<a href="/culture-and-methodologies">Culture and Methodologies</a>
|
||
<div class="header-menu-items">
|
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<a class="header-menu-item" href="/agile">Agile</a>
|
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<a class="header-menu-item" href="/career-development">Career Development</a>
|
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<a class="header-menu-item" href="/methodologies">Methodologies</a>
|
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<a class="header-menu-item" href="/team-management">Team Management</a>
|
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</div>
|
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</div>
|
||
<div class="header-menu-separator parent-category-separator"></div>
|
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<div class="header-menu parent-category" tabindex="2">
|
||
<a href="/data-engineering">Data Engineering</a>
|
||
<div class="header-menu-items">
|
||
<a class="header-menu-item" href="/ai-ml">AI/ML</a>
|
||
<a class="header-menu-item" href="/big-data">Big Data</a>
|
||
<a class="header-menu-item" href="/data">Data</a>
|
||
<a class="header-menu-item" href="/databases">Databases</a>
|
||
<a class="header-menu-item" href="/iot">IoT</a>
|
||
</div>
|
||
</div>
|
||
<div class="header-menu-separator parent-category-separator"></div>
|
||
<div class="header-menu parent-category" tabindex="3">
|
||
<a href="/software-design-and-architecture">Software Design and Architecture</a>
|
||
<div class="header-menu-items">
|
||
<a class="header-menu-item" href="/cloud-architecture">Cloud Architecture</a>
|
||
<a class="header-menu-item" href="/containers">Containers</a>
|
||
<a class="header-menu-item" href="/integration">Integration</a>
|
||
<a class="header-menu-item" href="/microservices">Microservices</a>
|
||
<a class="header-menu-item" href="/performance">Performance</a>
|
||
<a class="header-menu-item" href="/security">Security</a>
|
||
</div>
|
||
</div>
|
||
<div class="header-menu-separator parent-category-separator"></div>
|
||
<div class="header-menu parent-category" tabindex="4">
|
||
<a href="/coding">Coding</a>
|
||
<div class="header-menu-items">
|
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<a class="header-menu-item" href="/frameworks">Frameworks</a>
|
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<a class="header-menu-item" href="/java">Java</a>
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<a class="header-menu-item" href="/javascript">JavaScript</a>
|
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<a class="header-menu-item" href="/languages">Languages</a>
|
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<a class="header-menu-item" href="/tools">Tools</a>
|
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</div>
|
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</div>
|
||
<div class="header-menu-separator parent-category-separator"></div>
|
||
<div class="header-menu parent-category" tabindex="5">
|
||
<a href="/testing-deployment-and-maintenance">Testing, Deployment, and Maintenance</a>
|
||
<div class="header-menu-items">
|
||
<a class="header-menu-item" href="/deployment">Deployment</a>
|
||
<a class="header-menu-item" href="/devops-and-cicd">DevOps and CI/CD</a>
|
||
<a class="header-menu-item" href="/maintenance">Maintenance</a>
|
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<a class="header-menu-item" href="/monitoring-and-observability">Monitoring and Observability</a>
|
||
<a class="header-menu-item" href="/testing-tools-and-frameworks">Testing, Tools, and Frameworks</a>
|
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</div>
|
||
</div>
|
||
<div class="header-menu-separator parent-category-separator"></div>
|
||
<div class="header-menu parent-category sponsored" tabindex="6">
|
||
<a href="javascript:void(0)">Partner Zones</a>
|
||
<div class="header-menu-items sponsored">
|
||
<a class="header-menu-item" href="/hubs/build-ai-agents-that-are-ready-for-production/">Build AI Agents That Are Ready for Production</a>
|
||
</div>
|
||
</div>
|
||
<div class="header-menu-separator parent-category-separator"></div>
|
||
</nav>
|
||
</header>
|
||
|
||
<script>
|
||
const csrf = {
|
||
parameter: 'TH_CSRF',
|
||
header: 'X-TH-CSRF',
|
||
token: '-495320617366182826'
|
||
}; // set csrf for auth-status script
|
||
</script>
|
||
<script>
|
||
addEventListener('DOMContentLoaded', function() {
|
||
handleRedirects();
|
||
handleMenus();
|
||
handleMobileMenuHeights();
|
||
handleGotoLinks();
|
||
});
|
||
|
||
function isHidden(element) {
|
||
try {
|
||
return window.getComputedStyle(element).display === 'none';
|
||
} catch (_) {
|
||
return false;
|
||
}
|
||
}
|
||
|
||
function getLink(element) {
|
||
if (element.hasAttribute('data-goto')) {
|
||
return element.getAttribute('data-goto');
|
||
}
|
||
return element.href;
|
||
}
|
||
|
||
function isLeftClick(event) {
|
||
if (event.altKey || event.shiftKey) {
|
||
return false;
|
||
} else if ('buttons' in event || 'which' in event) {
|
||
return event.buttons === 1 || event.which === 1;
|
||
} else {
|
||
return (event.button === 1 || (event.type === 'click'));
|
||
}
|
||
}
|
||
|
||
function handleRedirects() {
|
||
const redirections = [...document.querySelectorAll('[data-activate-menu]'), ...document.querySelectorAll('[data-click-target]')];
|
||
|
||
redirections.forEach(function(element) {
|
||
const menuSelector = element.getAttribute('data-activate-menu') || element.getAttribute('data-click-target');
|
||
const redirectingElement = document.querySelector(menuSelector);
|
||
if (redirectingElement) {
|
||
element.style.cursor = 'pointer';
|
||
const redirect = function(e) {
|
||
if (redirectingElement.hasAttribute('href') || redirectingElement.hasAttribute('data-goto')) {
|
||
if (redirectingElement.hasAttribute('data-new-window') || e.ctrlKey || e.metaKey) {
|
||
window.open(getLink(redirectingElement), '_blank');
|
||
} else {
|
||
window.open(getLink(redirectingElement), '_self');
|
||
}
|
||
} else {
|
||
const evt = new e.constructor(e.type, e);
|
||
redirectingElement.dispatchEvent(evt);
|
||
}
|
||
};
|
||
element.addEventListener('mouseup', redirect);
|
||
element.addEventListener('mousedown', (e) => e.preventDefault());
|
||
element.addEventListener('click', (e) => e.preventDefault());
|
||
}
|
||
});
|
||
}
|
||
|
||
function handleMenus() {
|
||
const menuElements = [
|
||
...document.querySelectorAll('.header-menu > a'),
|
||
...document.querySelectorAll('.header-menu > p.menu-label')
|
||
];
|
||
|
||
let scrollYMemory = -1;
|
||
|
||
function scrollToMemory() {
|
||
if (scrollYMemory !== -1) {
|
||
setTimeout(function() {
|
||
window.scrollTo(0, scrollYMemory);
|
||
scrollYMemory = -1;
|
||
}, 10);
|
||
}
|
||
}
|
||
|
||
function hideMenus() {
|
||
// unfocus menus & items, and set the menus to non-visible.
|
||
menuElements.forEach(function (element) {
|
||
element.blur();
|
||
element.parentElement.blur();
|
||
element.parentElement.classList.remove('menu-opened');
|
||
const menuItems = element.parentElement.querySelector('.header-menu-items');
|
||
if (menuItems) {
|
||
menuItems.style.display = 'none';
|
||
}
|
||
});
|
||
const wasHidden = document.body.style.overflowY === 'hidden';
|
||
document.body.style.overflowY = 'auto';
|
||
if (wasHidden) {
|
||
scrollToMemory();
|
||
}
|
||
}
|
||
|
||
function isEventOutsideMenu(e) {
|
||
return e.target.closest && !e.target.closest('.header-menu') && !e.target.closest('[data-activate-menu]');
|
||
}
|
||
|
||
// Handle mobile menu toggling
|
||
menuElements.forEach(function(element) {
|
||
const menu = element.parentElement;
|
||
const headerItems = menu.querySelector('.header-menu-items');
|
||
const menuEntries = headerItems ? headerItems.querySelectorAll('.header-menu-item') : [];
|
||
|
||
const focus = function() {
|
||
menu.focus();
|
||
menu.classList.add('menu-opened');
|
||
if (headerItems) {
|
||
headerItems.style.display = 'block';
|
||
}
|
||
if (menu.classList.contains('zone-menu')) {
|
||
scrollYMemory = window.scrollY;
|
||
document.body.style.overflowY = 'hidden';
|
||
} else {
|
||
scrollYMemory = -1;
|
||
}
|
||
};
|
||
|
||
const unfocus = function() {
|
||
menu.blur();
|
||
menu.classList.remove('menu-opened');
|
||
if (headerItems) {
|
||
headerItems.style.display = 'none';
|
||
}
|
||
const wasHidden = document.body.style.overflowY === 'hidden';
|
||
document.body.style.overflowY = 'auto';
|
||
if (wasHidden) {
|
||
scrollToMemory();
|
||
}
|
||
};
|
||
|
||
const toggleMenuVisibility = function(e) {
|
||
if ((e.type === 'click' || e.type === 'mouseup') && !isLeftClick(e)) {
|
||
e.preventDefault();
|
||
return;
|
||
}
|
||
const hidden = isHidden(headerItems);
|
||
if (menu.hasAttribute('data-click-activation')) { // handle click activated toggling
|
||
if (hidden) {
|
||
hideMenus(); // hide other open menus first
|
||
focus();
|
||
} else {
|
||
unfocus();
|
||
}
|
||
e.preventDefault();
|
||
} else if (hidden) {
|
||
hideMenus(); // hide other open menus first
|
||
focus();
|
||
e.preventDefault(); // prevent 'click' event from firing when menu is hidden
|
||
}
|
||
};
|
||
|
||
element.addEventListener('touchend', toggleMenuVisibility);
|
||
element.addEventListener('mouseup', toggleMenuVisibility);
|
||
|
||
// Add hover events to non-click-activated menus, even though CSS should cover it.
|
||
if (!menu.hasAttribute('data-click-activation')) {
|
||
menu.addEventListener('mouseover', function () {
|
||
hideMenus(); // hide other open menus first
|
||
focus();
|
||
});
|
||
|
||
menu.addEventListener('mouseout', function (e) {
|
||
if (isEventOutsideMenu(e)) {
|
||
unfocus();
|
||
}
|
||
});
|
||
}
|
||
|
||
// Hide menu when child is clicked
|
||
menuEntries.forEach(function(menuEntry) {
|
||
const linkToItem = function(e) {
|
||
if (e.type === 'mousedown' || e.type === 'click') {
|
||
e.preventDefault();
|
||
return;
|
||
}
|
||
if (e.type === 'mouseup' && !isLeftClick(e)) {
|
||
e.preventDefault();
|
||
return;
|
||
}
|
||
window.open(getLink(menuEntry), (e.ctrlKey || e.metaKey) ? '_blank' : (menuEntry.target || '_self'));
|
||
unfocus();
|
||
e.preventDefault();
|
||
};
|
||
|
||
const linkToMobileItem = function(e) {
|
||
if (e.type === 'touchstart') {
|
||
menuEntry.setAttribute('data-touchmove', false);
|
||
} else if (e.type === 'touchmove') {
|
||
menuEntry.setAttribute('data-touchmove', true);
|
||
} else if (e.type === 'touchend' && (!menuEntry.hasAttribute('data-touchmove') || menuEntry.getAttribute('data-touchmove').toLowerCase() === 'false')) {
|
||
window.open(getLink(menuEntry), (e.ctrlKey || e.metaKey) ? '_blank' : (menuEntry.target || '_self'));
|
||
unfocus();
|
||
e.preventDefault();
|
||
}
|
||
};
|
||
|
||
menuEntry.addEventListener('mousedown', linkToItem);
|
||
menuEntry.addEventListener('mouseup', linkToItem);
|
||
menuEntry.addEventListener('click', linkToItem);
|
||
menuEntry.addEventListener('touchstart', linkToMobileItem);
|
||
menuEntry.addEventListener('touchmove', linkToMobileItem);
|
||
menuEntry.addEventListener('touchend', linkToMobileItem);
|
||
});
|
||
});
|
||
|
||
function hideIfNonMenuBounds(e) {
|
||
if (isEventOutsideMenu(e)) {
|
||
hideMenus();
|
||
}
|
||
}
|
||
|
||
addEventListener('mousemove', hideIfNonMenuBounds);
|
||
addEventListener('touchend', hideIfNonMenuBounds);
|
||
addEventListener('mouseup', hideIfNonMenuBounds);
|
||
addEventListener('mousedown', hideIfNonMenuBounds);
|
||
addEventListener('click', hideIfNonMenuBounds);
|
||
}
|
||
|
||
function handleMobileMenuHeights() {
|
||
function setAppHeight() {
|
||
document.documentElement.style.setProperty('--app-height', window.innerHeight + 'px');
|
||
}
|
||
|
||
addEventListener('resize', function() {
|
||
setAppHeight();
|
||
});
|
||
|
||
setAppHeight();
|
||
}
|
||
|
||
function handleGotoLinks() {
|
||
// Add anchor mimicking to elements with data-goto attributes
|
||
// This addresses SEO concerns of linking to noindex pages by allowing JS to handle the URL
|
||
const anchorElements = document.querySelectorAll('*[data-goto]');
|
||
anchorElements.forEach((anchorElement) => {
|
||
anchorElement.addEventListener('mouseover', () => {
|
||
anchorElement.style.cursor = 'pointer';
|
||
anchorElement.style.textDecoration = 'underline';
|
||
});
|
||
anchorElement.addEventListener('mouseout', () => {
|
||
anchorElement.style.cursor = 'unset';
|
||
anchorElement.style.textDecoration = 'unset';
|
||
});
|
||
anchorElement.addEventListener('mouseup', (e) => {
|
||
e.preventDefault();
|
||
});
|
||
anchorElement.addEventListener('mousedown', (e) => {
|
||
e.preventDefault();
|
||
});
|
||
anchorElement.addEventListener('click', (e) => {
|
||
e.preventDefault();
|
||
const anchorHref = anchorElement.getAttribute('data-goto');
|
||
if (anchorElement.hasAttribute('data-new-window') || e.ctrlKey || e.metaKey) {
|
||
window.open(anchorHref, '_blank');
|
||
} else {
|
||
window.open(anchorHref, '_self');
|
||
}
|
||
});
|
||
});
|
||
}
|
||
</script><script>
|
||
const authenticatedBlock = document.querySelector('#authenticated-block');
|
||
const unauthenticatedBlock = document.querySelector('#unauthenticated-block');
|
||
|
||
let authenticated = {
|
||
isAuthenticated: false,
|
||
isAdmin: false,
|
||
user: {
|
||
id: null,
|
||
name: null,
|
||
url: null,
|
||
profileImage: null,
|
||
}
|
||
};
|
||
|
||
fetch('/services/internal/data/articles-getAuthenticationStatus', {
|
||
headers: {
|
||
'Accept': 'application/json'
|
||
}
|
||
})
|
||
.then(function (result) {
|
||
return result.json()
|
||
})
|
||
.then(function (result) {
|
||
const res = result.result.data
|
||
if (!res.authenticated) {
|
||
unauthenticatedBlock.classList.add('shown')
|
||
} else {
|
||
authenticated.user.id = res.id;
|
||
authenticated.user.name = res.realName;
|
||
authenticated.user.url = res.profileUrl;
|
||
authenticated.user.profileImage = res.avatar;
|
||
authenticated.user.jobTitle = res.jobTitle;
|
||
authenticated.user.companyName = res.companyName;
|
||
|
||
bindProps('#header-username', null, null, (res.firstName || res.username), null)
|
||
bindProps('#header-avatar', null, res.avatar, null, null)
|
||
bindProps('#header-user-plug', res.profileUrl, null, res.realName, null)
|
||
bindProps('#header-user-edit', '/users/' + res.id + '/edit.html', null, null, null)
|
||
bindProps('#header-dropdown-manage-email', '/newsletters/' + res.id + '/manage.html', null, null, null)
|
||
bindProps('#dropdown-view-profile', res.profileUrl, null, null, null)
|
||
bindProps('#drafts-link', '/users/' + res.id + '/drafts.html', null, null, null)
|
||
|
||
if (res.isAdmin) {
|
||
// Construct backwards so the #after call places elements in the correct order
|
||
const firstUserAction = document.querySelector('#first-user-action')
|
||
const adminConsoleItem = document.createElement('li')
|
||
const adminConsoleLink = createLink('/dzone/staff/index.html', 'Admin Console')
|
||
adminConsoleItem.appendChild(adminConsoleLink)
|
||
firstUserAction.after(adminConsoleItem)
|
||
|
||
const moderationItem = document.createElement('li')
|
||
const moderationLink = createLink('/moderation/list.html', 'Moderation')
|
||
moderationItem.appendChild(moderationLink)
|
||
firstUserAction.after(moderationItem)
|
||
|
||
const bountyModerationItem = document.createElement('li')
|
||
const bountyModerationLink = createLink('/moderation/bounties', 'Bounty Moderation')
|
||
bountyModerationItem.appendChild(bountyModerationLink)
|
||
firstUserAction.after(bountyModerationItem)
|
||
}
|
||
|
||
authenticated.isAuthenticated = res.authenticated;
|
||
authenticated.isAdmin = res.isAdmin;
|
||
|
||
authenticatedBlock.classList.add('shown')
|
||
}
|
||
}).catch(function (result) {
|
||
console.error(result)
|
||
})
|
||
|
||
/**
|
||
* Binds different properties to the selected element.
|
||
*
|
||
* @param selector - Selector to select the element
|
||
* @param href - href attribute value
|
||
* @param src - src attribute value
|
||
* @param innerHTML - innerHTML property value
|
||
* @param innerText - innerText property value
|
||
*/
|
||
function bindProps(selector, href, src, innerHTML, innerText) {
|
||
const element = document.querySelector(selector)
|
||
if (element) {
|
||
if (href) element.href = href
|
||
if (src) element.src = src
|
||
if (innerHTML) element.innerHTML = innerHTML
|
||
if (innerText) element.innerText = innerText
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Creates a new link element.
|
||
*
|
||
* @param href - href attribute value
|
||
* @param innerText - innerText property value
|
||
* @returns {HTMLAnchorElement} The generated link element
|
||
*/
|
||
function createLink(href, innerText) {
|
||
const link = document.createElement('a')
|
||
link.href = href
|
||
link.innerText = innerText
|
||
|
||
return link
|
||
}
|
||
</script><script>
|
||
const userHeader = document.querySelector('#user-header')
|
||
const userDropdown = document.querySelector('#user-dropdown')
|
||
const postDropdown = document.querySelector('#post-button')
|
||
const postMenu = document.querySelector('#post-menu')
|
||
|
||
let userDropdownOpen = false
|
||
let postDropdownOpen = false
|
||
|
||
document.addEventListener('click', function(event) {
|
||
if (postDropdown && postDropdown.contains(event.target)) {
|
||
setUserDropdown(false)
|
||
setPostDropdown(!postDropdownOpen)
|
||
} else if (userHeader && userHeader.contains(event.target)) {
|
||
setPostDropdown(false)
|
||
setUserDropdown(!userDropdownOpen)
|
||
} else {
|
||
setUserDropdown(false)
|
||
setPostDropdown(false)
|
||
}
|
||
})
|
||
|
||
function setUserDropdown(value) {
|
||
userDropdownOpen = value
|
||
if (userDropdownOpen) {
|
||
if (userDropdown) {
|
||
userDropdown.classList.add('open')
|
||
}
|
||
} else {
|
||
if (userDropdown) {
|
||
userDropdown.classList.remove('open')
|
||
}
|
||
}
|
||
}
|
||
|
||
function setPostDropdown(value) {
|
||
postDropdownOpen = value
|
||
if (postDropdownOpen) {
|
||
if (postMenu) {
|
||
postMenu.classList.add('open')
|
||
}
|
||
} else {
|
||
if (postMenu) {
|
||
postMenu.classList.remove('open')
|
||
}
|
||
}
|
||
}
|
||
</script><script>
|
||
document.addEventListener("alpine:init", () => {
|
||
Alpine.store('global', {
|
||
executeHttp(path, body, method) {
|
||
const options = {
|
||
method: method,
|
||
headers: {
|
||
[csrf.header]: csrf.token
|
||
}
|
||
};
|
||
|
||
if (method !== 'GET') {
|
||
options.body = JSON.stringify(body);
|
||
options.headers = {
|
||
...options.headers,
|
||
'Content-Type': 'application/json; charset=UTF-8'
|
||
};
|
||
}
|
||
|
||
return new Promise((resolve, reject) => {
|
||
fetch(path, options)
|
||
.then(res => {
|
||
if (!res.ok) {
|
||
reject(res);
|
||
} else {
|
||
resolve(res);
|
||
}
|
||
})
|
||
.catch(err => reject(err));
|
||
});
|
||
},
|
||
getFromService(path) {
|
||
return this.executeHttp(path, null, 'GET');
|
||
},
|
||
postToService(path, body = {}) {
|
||
return this.executeHttp(path, body, 'POST');
|
||
},
|
||
putToService(path, body = {}) {
|
||
return this.executeHttp(path, body, 'PUT');
|
||
}
|
||
});
|
||
});
|
||
</script>
|
||
<link rel="stylesheet" media="all" href="https://dz2cdn1.dzone.com/themes/dz20/ftl/colors.css">
|
||
<link rel="stylesheet" media="all" href="https://dz2cdn1.dzone.com/themes/dz20/ftl/article/styles.css">
|
||
|
||
|
||
|
||
|
||
|
||
<div id="body-container">
|
||
<div id="announcement-container-outer">
|
||
<div id="announcement-previous">
|
||
<i class="icon-angle-left"></i>
|
||
</div>
|
||
<div id="announcement-next">
|
||
<i class="icon-angle-right"></i>
|
||
</div>
|
||
<div id="announcement-container">
|
||
<div class="announcement announcement-count-1"
|
||
data-position="1">
|
||
<div class="body"><p><strong>Could your team report a vulnerability within 24 hours? </strong>Find out on September 23.</p></div>
|
||
<div class="spacer"></div>
|
||
<a href="https://cvent.me/O32zXR?utm_source=Announcements&utm_medium=DzoneWeb&utm_campaign=QtGroup-0923" target="_blank">
|
||
<button>Assess Your CRA Readiness</button>
|
||
</a>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<script type="text/javascript" async>
|
||
(function() {
|
||
let announcementPosition = 1;
|
||
let minAnnouncementPosition = -1;
|
||
let maxAnnouncementPosition = -1;
|
||
|
||
const announcementPrevBtn = document.querySelector('#announcement-previous');
|
||
const announcementNextBtn = document.querySelector('#announcement-next');
|
||
|
||
function withAnnouncements(callback) {
|
||
const announcements = document.querySelectorAll('#announcement-container .announcement');
|
||
for (let announcement of announcements) {
|
||
callback(announcement);
|
||
}
|
||
}
|
||
|
||
function initAnnouncementVars() {
|
||
document.querySelector(':root').style.setProperty('--mobile-announcement-separator-width', '1px');
|
||
withAnnouncements(function(announcement) {
|
||
const pos = parseInt(announcement.getAttribute('data-position'));
|
||
minAnnouncementPosition = minAnnouncementPosition === -1 ? pos : Math.min(minAnnouncementPosition, pos);
|
||
maxAnnouncementPosition = maxAnnouncementPosition === -1 ? pos : Math.max(maxAnnouncementPosition, pos);
|
||
});
|
||
|
||
if (document.querySelector('.announcementBarContainer')) {
|
||
document.querySelector(':root').style.setProperty('--body-top-padding', '0');
|
||
}
|
||
|
||
if (maxAnnouncementPosition <= 0) {
|
||
document.querySelector(':root').style.setProperty('--body-top-padding', '0');
|
||
}
|
||
|
||
sizeToFullWhenOneEntryOnMobile();
|
||
}
|
||
|
||
function setAnnouncementPosition(position) {
|
||
if (window.outerWidth >= 890) {
|
||
return; // we do not need to change the position, since we can display everything on desktop.
|
||
}
|
||
|
||
// Make the announcement cyclical
|
||
if (minAnnouncementPosition !== -1 && maxAnnouncementPosition !== -1) {
|
||
if (position > maxAnnouncementPosition) {
|
||
position = minAnnouncementPosition; // overflow to the first announcement
|
||
} else if (position < minAnnouncementPosition) {
|
||
position = maxAnnouncementPosition; // underflow to the last announcement
|
||
}
|
||
announcementPosition = position;
|
||
}
|
||
|
||
const shownAnnouncements = [];
|
||
|
||
let reverseFlex = false; // should only be true when the first and last items are showing
|
||
|
||
// Now that the position is valid, apply the transforms
|
||
withAnnouncements(function(announcement) {
|
||
const pos = parseInt(announcement.getAttribute('data-position'));
|
||
const isWrapped = position === maxAnnouncementPosition && pos === minAnnouncementPosition; // showing first + last at same time
|
||
const doesNextQualify = window.outerWidth >= 500 && (pos === position + 1 || isWrapped);
|
||
|
||
if (pos === position || doesNextQualify) {
|
||
shownAnnouncements.push(announcement);
|
||
} else {
|
||
announcement.style.display = 'none';
|
||
}
|
||
|
||
announcement.style.opacity = 0.0;
|
||
|
||
if (isWrapped) {
|
||
reverseFlex = true;
|
||
}
|
||
});
|
||
|
||
for (let announcement of shownAnnouncements) {
|
||
announcement.style.display = 'flex';
|
||
announcement.style.opacity = 1.0;
|
||
}
|
||
|
||
const announcementContainer = document.querySelector('#announcement-container');
|
||
if (announcementContainer) {
|
||
announcementContainer.style.flexDirection = reverseFlex ? 'row-reverse' : 'row';
|
||
}
|
||
}
|
||
|
||
function resetAnnouncements() {
|
||
announcementPosition = 1;
|
||
const announcementContainer = document.querySelector('#announcement-container');
|
||
if (announcementContainer) {
|
||
announcementContainer.style.flexDirection = 'row';
|
||
}
|
||
withAnnouncements(function(announcement) {
|
||
announcement.style.opacity = 1.0;
|
||
announcement.style.display = 'flex';
|
||
});
|
||
}
|
||
|
||
function sizeToFullWhenOneEntryOnMobile() {
|
||
if (maxAnnouncementPosition <= 2 && announcementPrevBtn && announcementNextBtn) {
|
||
announcementPrevBtn.style.display = maxAnnouncementPosition === 2 && window.outerWidth < 500 ? 'flex' : 'none';
|
||
announcementNextBtn.style.display = maxAnnouncementPosition === 2 && window.outerWidth < 500 ? 'flex' : 'none';
|
||
}
|
||
if (maxAnnouncementPosition === 1 && window.outerWidth >= 500 && window.outerWidth < 890) {
|
||
document.querySelector(':root').style.setProperty('--mobile-announcement-separator-width', '0');
|
||
document.querySelector('#announcement-container .announcement').style.maxWidth = '100%';
|
||
}
|
||
}
|
||
|
||
function resetAnnouncementsOnResize() {
|
||
announcementPosition = 1; // we want to reset the announcement position every resize
|
||
if (window.outerWidth >= 890) { // 4 announcements can be shown (215px * 4) + separator padding
|
||
resetAnnouncements();
|
||
} else { // if we're still on mobile, set the position to normalize things after resize
|
||
setAnnouncementPosition(announcementPosition);
|
||
sizeToFullWhenOneEntryOnMobile();
|
||
}
|
||
}
|
||
|
||
window.addEventListener('resize', resetAnnouncementsOnResize);
|
||
|
||
initAnnouncementVars();
|
||
setAnnouncementPosition(announcementPosition); // sets the min & max positions as well as initializes transforms
|
||
|
||
if (announcementPrevBtn) {
|
||
announcementPrevBtn.onclick = function() {
|
||
setAnnouncementPosition(announcementPosition - 1);
|
||
};
|
||
}
|
||
|
||
if (announcementNextBtn) {
|
||
announcementNextBtn.onclick = function() {
|
||
setAnnouncementPosition(announcementPosition + 1);
|
||
};
|
||
}
|
||
})(); </script>
|
||
<div id="ftl-article" class="trending-article-body">
|
||
<aside class="trending-sidebar" aria-labelledby="related-sidebar-heading">
|
||
<div class="trending">
|
||
<h2 id="related-sidebar-heading">Related</h2>
|
||
<div class="trending-separator"></div>
|
||
<ul>
|
||
<li class="item">
|
||
<a href="/articles/beyond-the-spec-sheet-performance-tuning-a-massive" class="related-link">Beyond the Spec Sheet: Performance Tuning a Massive DWH Migration on AWS</a>
|
||
</li>
|
||
<li class="item">
|
||
<a href="/articles/cloud-data-warehouse-performance-aws-tools-bottlenecks" class="related-link">Improving Cloud Data Warehouse Performance: Overcoming Bottlenecks With AWS and Third-Party Tools</a>
|
||
</li>
|
||
<li class="item">
|
||
<a href="/articles/optimize-snowflake-performance-on-aws" class="related-link">Performance Optimization Techniques for Snowflake on AWS</a>
|
||
</li>
|
||
<li class="item">
|
||
<a href="/articles/llmops-the-future-of-ai-model-management" class="related-link">LLMops: The Future of AI Model Management</a>
|
||
</li>
|
||
</ul>
|
||
</div>
|
||
</aside>
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"articleBody": "AWS EC2 Autoscaling is frequently regarded as the ideal solution for managing fluctuating workloads. It offers automatic adjustments of computing resources in response to demand, theoretically removing the necessity for manual involvement. Nevertheless, depending exclusively on EC2 Autoscaling can result in inefficiencies, overspending, and performance issues. Although Autoscaling is an effective tool, it does not serve as a one-size-fits-all remedy. Here’s a comprehensive exploration of why Autoscaling isn’t a guaranteed fix and suggestions for engineers to improve its performance and cost-effectiveness. The Allure of EC2 Autoscaling Autoscaling groups (ASGs) dynamically modify the number of EC2 instances to align with your application’s workload. This feature is ideal for unpredictable traffic scenarios, like a retail site during a Black Friday rush or a media service broadcasting a live event. The advantages are evident: Dynamic scaling: Instantly adds or removes instances according to policies or demand.Cost management: Shields against over-provisioning in low-traffic times.High availability: Guarantees that applications stay responsive during peak load. Nonetheless, these benefits come with certain limitations. The Pitfalls of Blind Reliance on Autoscaling 1. Cold Start Delays Autoscaling relies on spinning up new EC2 instances when demand increases. This process involves: Booting up a virtual machine.Installing or configuring necessary software.Connecting the instance to the application ecosystem. In many cases, this can take several minutes — an eternity during traffic spikes. For example: An e-commerce platform experiencing a flash sale might see lost sales and frustrated customers while waiting for new instances to come online.A real-time analytics system could drop critical data points due to insufficient compute power during a sudden surge. Solution: Pre-warm instances during expected peaks or use predictive scaling based on historical patterns. 2. Inadequate Load Balancing Even with Autoscaling in place, improperly configured load balancers can lead to uneven traffic distribution. For instance: A health-check misconfiguration might repeatedly route traffic to instances that are already overloaded.Sticky sessions can lock users to specific instances, negating the benefits of new resources added by Autoscaling. Solution: Pair Autoscaling with robust load balancer configurations, such as application-based routing and failover mechanisms. 3. Reactive Nature of Autoscaling Autoscaling policies are inherently reactive — they respond to metrics such as CPU utilization, memory usage, or request counts. By the time the system recognizes the need for additional instances, the spike has already impacted performance. Example: A fintech app processing high-frequency transactions saw delays when new instances took 5 minutes to provision. This lag led to compliance violations during market surges. Solution: Implement predictive scaling using AWS Auto Scaling Plans or leverage AWS Lambda for instantaneous scaling needs where possible. 4. Costs Can Spiral Out of Control Autoscaling can inadvertently cause significant cost overruns: Aggressive scaling policies may provision more resources than necessary, especially during transient spikes.Overlooked instance termination policies might leave idle resources running longer than intended. Example: A SaaS platform experienced a 300% increase in cloud costs due to Autoscaling misconfigurations during a product launch. Instances remained active long after the peak traffic subsided. Solution: Use AWS Cost Explorer to monitor spending and configure instance termination policies carefully. Consider Reserved or Spot Instances for predictable workloads. Enhancing Autoscaling for Real-World Efficiency To overcome these challenges, Autoscaling must be part of a broader strategy: 1. Leverage Spot and Reserved Instances Use a mix of Spot, Reserved, and On-Demand Instances. For example, Reserved Instances can handle baseline traffic, while Spot Instances handle bursts, reducing costs. 2. Combine With Serverless Architectures Serverless services like AWS Lambda can absorb sudden, unpredictable traffic bursts without the delay of provisioning EC2 instances. For instance, a news website might use Lambda to serve spikes in article views after breaking news. 3. Implement Predictive Scaling AWS’s predictive scaling uses machine learning to forecast traffic patterns. A travel booking site, for example, could pre-scale instances before the surge in bookings during holiday seasons. 4. Optimize Application Performance Sometimes the root cause of scaling inefficiencies lies in the application itself: Inefficient code.Database bottlenecks.Overuse of I/O operations.Invest in application profiling tools like Amazon CloudWatch and AWS X-Ray to identify and resolve these issues. The Verdict EC2 Autoscaling is an essential component of modern cloud infrastructure, but it’s not a perfect solution. Cold start delays, reactive scaling, and cost overruns underscore the need for a more holistic approach to performance tuning. By combining Autoscaling with predictive strategies, serverless architectures, and rigorous application optimization, organizations can achieve the scalability and cost-efficiency they seek. Autoscaling is an impressive tool, but like any tool, it’s most effective when wielded thoughtfully. For engineers, the challenge is not whether to use Autoscaling but how to use it in harmony with the rest of the AWS ecosystem.",
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<p>Deep dive into why Autoscaling isn’t a silver bullet and how engineers can augment it for better performance and cost efficiency.</p>
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<div class="content-html"><p>AWS EC2 Autoscaling is frequently regarded as the ideal solution for managing fluctuating workloads. It offers automatic adjustments of computing resources in response to demand, theoretically removing the necessity for manual involvement. Nevertheless, depending exclusively on <a href="https://aws.amazon.com/ec2/autoscaling/" rel="noopener noreferrer" target="_blank">EC2 Autoscaling</a> can result in inefficiencies, overspending, and performance issues. Although Autoscaling is an effective tool, it does not serve as a one-size-fits-all remedy. </p>
|
||
<p>Here’s a comprehensive exploration of why Autoscaling isn’t a guaranteed fix and suggestions for engineers to improve its performance and cost-effectiveness.</p>
|
||
<h2><strong>The Allure of EC2 Autoscaling</strong></h2>
|
||
<p><a href="https://docs.aws.amazon.com/autoscaling/ec2/userguide/auto-scaling-groups.html" rel="noopener noreferrer" target="_blank">Autoscaling groups</a> (ASGs) dynamically modify the number of <a href="https://aws.amazon.com/pm/ec2/?gclid=Cj0KCQiAouG5BhDBARIsAOc08RS9AToHKjsGoUNBVBCcZnZiHLiLhuAt2FXfCY19ztBwJq2sK9ZhWF4aAjjgEALw_wcB&trk=36c6da98-7b20-48fa-8225-4784bced9843&sc_channel=ps&ef_id=Cj0KCQiAouG5BhDBARIsAOc08RS9AToHKjsGoUNBVBCcZnZiHLiLhuAt2FXfCY19ztBwJq2sK9ZhWF4aAjjgEALw_wcB:G:s&s_kwcid=AL!4422!3!467723097970!e!!g!!amazon%20aws%20ec2!11198711716!118263955828" rel="noopener noreferrer" target="_blank">EC2 instances</a> to align with your application’s workload. This feature is ideal for unpredictable traffic scenarios, like a retail site during a Black Friday rush or a media service broadcasting a live event.</p>
|
||
<p>The advantages are evident:</p>
|
||
<ul>
|
||
<li> <strong>Dynamic scaling</strong>: Instantly adds or removes instances according to policies or demand.</li>
|
||
<li><strong>Cost management</strong>: Shields against over-provisioning in low-traffic times.</li>
|
||
<li><strong>High availability</strong>: Guarantees that applications stay responsive during peak load.</li>
|
||
</ul>
|
||
<p>Nonetheless, these benefits come with certain limitations.</p>
|
||
<h2><strong>The Pitfalls of Blind Reliance on Autoscaling</strong></h2>
|
||
<h3><strong>1. Cold Start Delays</strong></h3>
|
||
<p>Autoscaling relies on spinning up <a href="https://dzone.com/articles/how-to-understand-and-choose-your-first-ec2-instan">new EC2 instances</a> when demand increases. This process involves:</p>
|
||
<ul type="disc">
|
||
<li>Booting up a virtual machine.</li>
|
||
<li>Installing or configuring necessary software.</li>
|
||
<li>Connecting the instance to the application ecosystem.</li>
|
||
</ul>
|
||
<p>In many cases, this can take several minutes — an eternity during traffic spikes.</p>
|
||
<p><strong>For example</strong>:</p>
|
||
<ul type="disc">
|
||
<li>An e-commerce platform experiencing a flash sale might see lost sales and frustrated customers while waiting for new instances to come online.</li>
|
||
<li>A real-time analytics system could drop critical data points due to insufficient compute power during a sudden surge.</li>
|
||
</ul>
|
||
<p><strong>Solution</strong>: Pre-warm instances during expected peaks or use predictive scaling based on historical patterns.</p>
|
||
<h3><strong>2. Inadequate Load Balancing</strong></h3>
|
||
<p>Even with Autoscaling in place, improperly configured load balancers can lead to uneven traffic distribution.</p>
|
||
<p><strong>For instance</strong>:</p>
|
||
<ul type="disc">
|
||
<li>A health-check misconfiguration might repeatedly route traffic to instances that are already overloaded.</li>
|
||
<li>Sticky sessions can lock users to specific instances, negating the benefits of new resources added by Autoscaling.</li>
|
||
</ul>
|
||
<p><strong>Solution</strong>: Pair Autoscaling with robust load balancer configurations, such as application-based routing and failover mechanisms.</p>
|
||
<h3><strong>3. Reactive Nature of Autoscaling</strong></h3>
|
||
<p>Autoscaling policies are inherently reactive — they respond to metrics such as CPU utilization, memory usage, or request counts. By the time the system recognizes the need for additional instances, the spike has already impacted performance.</p>
|
||
<p><strong>Example</strong>: A fintech app processing high-frequency transactions saw delays when new instances took 5 minutes to provision. This lag led to compliance violations during market surges.</p>
|
||
<p><strong>Solution</strong>: Implement predictive scaling using AWS Auto Scaling Plans or leverage AWS Lambda for instantaneous scaling needs where possible.</p>
|
||
<h3><strong>4. Costs Can Spiral Out of Control</strong></h3>
|
||
<p>Autoscaling can inadvertently cause significant cost overruns:</p>
|
||
<ul type="disc">
|
||
<li>Aggressive scaling policies may provision more resources than necessary, especially during transient spikes.</li>
|
||
<li>Overlooked instance termination policies might leave idle resources running longer than intended.</li>
|
||
</ul>
|
||
<p><strong>Example</strong>: A SaaS platform experienced a 300% increase in cloud costs due to Autoscaling misconfigurations during a product launch. Instances remained active long after the peak traffic subsided.</p>
|
||
<p><strong>Solution</strong>: Use AWS Cost Explorer to monitor spending and configure instance termination policies carefully. Consider Reserved or Spot Instances for predictable workloads.</p>
|
||
<h2><strong>Enhancing Autoscaling for Real-World Efficiency</strong></h2>
|
||
<p>To overcome these challenges, Autoscaling must be part of a broader strategy:</p>
|
||
<h3><strong>1. Leverage Spot and Reserved Instances</strong></h3>
|
||
<p>Use a mix of Spot, Reserved, and On-Demand Instances. For example, Reserved Instances can handle baseline traffic, while Spot Instances handle bursts, reducing costs.</p>
|
||
<h3><strong>2. Combine With Serverless Architectures</strong></h3>
|
||
<p>Serverless services like <a href="https://dzone.com/articles/aws-ecs-vs-aws-lambda-top-5-main-differences">AWS Lambda</a> can absorb sudden, unpredictable traffic bursts without the delay of provisioning EC2 instances. For instance, a news website might use Lambda to serve spikes in article views after breaking news.</p>
|
||
<h3><strong>3. Implement Predictive Scaling</strong></h3>
|
||
<p>AWS’s predictive scaling uses machine learning to forecast traffic patterns. A travel booking site, for example, could pre-scale instances before the surge in bookings during holiday seasons.</p>
|
||
<h3><strong>4. Optimize Application Performance</strong></h3>
|
||
<p>Sometimes the root cause of scaling inefficiencies lies in the application itself:</p>
|
||
<ul>
|
||
<li>Inefficient code.</li>
|
||
<li>Database bottlenecks.</li>
|
||
<li>Overuse of I/O operations.</li>
|
||
<li>Invest in application profiling tools like Amazon CloudWatch and AWS X-Ray to identify and resolve these issues.</li>
|
||
</ul>
|
||
<h2><strong>The Verdict</strong></h2>
|
||
<p>EC2 Autoscaling is an essential component of modern cloud infrastructure, but it’s not a perfect solution. Cold start delays, reactive scaling, and cost overruns underscore the need for a more holistic approach to performance tuning. By combining <a href="https://dzone.com/articles/how-to-create-auto-scaling-in-aws">Autoscaling</a> with predictive strategies, serverless architectures, and rigorous application optimization, organizations can achieve the scalability and cost-efficiency they seek.</p>
|
||
<p>Autoscaling is an impressive tool, but like any tool, it’s most effective when wielded thoughtfully. For engineers, the challenge is not whether to use Autoscaling but how to use it in harmony with the rest of the AWS ecosystem.</p></div>
|
||
</div>
|
||
|
||
<div id="bottom-bumper-container"></div>
|
||
<div class="article-tag-pill-container">
|
||
<span class="article-tag-pill">AWS</span>
|
||
<span class="article-tag-pill">Autoscaling</span>
|
||
<span class="article-tag-pill">Performance</span>
|
||
</div>
|
||
|
||
<div class="attribution">
|
||
<p>Opinions expressed by DZone contributors are their own.</p>
|
||
</div>
|
||
</div>
|
||
</article>
|
||
</div>
|
||
|
||
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<aside class="trending goto" aria-labelledby="related-mobile-heading">
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|
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<ul>
|
||
<li class="item">
|
||
<a href="/articles/beyond-the-spec-sheet-performance-tuning-a-massive" class="goto-link related-link">Beyond the Spec Sheet: Performance Tuning a Massive DWH Migration on AWS</a>
|
||
</li>
|
||
<li class="item">
|
||
<a href="/articles/cloud-data-warehouse-performance-aws-tools-bottlenecks" class="goto-link related-link">Improving Cloud Data Warehouse Performance: Overcoming Bottlenecks With AWS and Third-Party Tools</a>
|
||
</li>
|
||
<li class="item">
|
||
<a href="/articles/optimize-snowflake-performance-on-aws" class="goto-link related-link">Performance Optimization Techniques for Snowflake on AWS</a>
|
||
</li>
|
||
<li class="item">
|
||
<a href="/articles/llmops-the-future-of-ai-model-management" class="goto-link related-link">LLMops: The Future of AI Model Management</a>
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<div class="info hidden"></div>
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</div>
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var twitter = 'https://twitter.com/intent/tweet';
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$(modal).modal('show');
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$(modal).on('hidden.bs.modal', function () {
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modal.classList.remove(options.type);
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||
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||
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||
function showConfirmMessage(options) {
|
||
var modal = document.getElementById('modal-message');
|
||
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||
if(modal) {
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||
modal.classList.add(options.type);
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var modalBody = modal.querySelector('.modal-content .modal-body');
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var modalHeader = modal.querySelector('.modal-content .modal-header');
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modalHeader.innerText = options.header ? options.header : '';
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modalBody.innerText = options.body ? options.body : '';
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if (options.textarea) {
|
||
var textareaDiv = document.createElement('div');
|
||
var textareaLabel = document.createElement('label');
|
||
textareaLabel.setAttribute('for', 'modal-textarea');
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||
textareaLabel.innerText = options.textarea.label;
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||
|
||
var textarea = document.createElement('textarea');
|
||
textarea.id = 'modal-textarea';
|
||
textarea.placeholder = (options.textarea.placeholder || '');
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||
textarea.setAttribute('rows', (options.textarea.rows || 3));
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textarea.classList.add('form-control', 'not-resizable');
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||
if (options.textarea.maxlength) {
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textarea.maxLength = options.textarea.maxlength;
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}
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textareaDiv.appendChild(textareaLabel);
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textareaDiv.appendChild(textarea);
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modalBody.appendChild(textareaDiv);
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}
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||
var btnContainer = document.createElement('div');
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btnContainer.classList.add('btn-container');
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var noBtn = document.createElement('button');
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noBtn.innerText = options.noBtnText ? options.noBtnText : 'No';
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noBtn.classList.add('no-btn');
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var yesBtn = document.createElement('button');
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yesBtn.innerText = options.yesBtnText ? options.yesBtnText : 'Yes';
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yesBtn.classList.add('yes-btn');
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||
btnContainer.appendChild(noBtn);
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btnContainer.appendChild(yesBtn);
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||
|
||
modalBody.appendChild(btnContainer);
|
||
|
||
$(modal).modal('show');
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||
|
||
$(noBtn).one('click', function() {
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||
$(modal).modal('hide');
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||
|
||
if(options.noCallback) {
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||
$(modal).one('hidden.bs.modal', function () {
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options.noCallback();
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});
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}
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});
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||
|
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$(yesBtn).one('click', function() {
|
||
$(modal).modal('hide');
|
||
|
||
if(options.yesCallback) {
|
||
$(modal).one('hidden.bs.modal', function () {
|
||
options.yesCallback();
|
||
});
|
||
}
|
||
});
|
||
|
||
$(modal).on('hidden.bs.modal', function () {
|
||
modal.classList.remove(options.type);
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||
});
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}
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||
}
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||
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function getSuspensionBody() {
|
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return 'We regret to inform you that your DZone account has been suspended for violating our Guidelines. ' +
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'Please reach out to editors@dzone.com if you would like additional information.';
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||
}</script>
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||
<style>.engagement-overlay {
|
||
width: 100%;
|
||
height: 100%;
|
||
position: fixed;
|
||
top: 0;
|
||
left: 0;
|
||
background: rgb(0, 0, 0, 0.5);
|
||
z-index: 10000;
|
||
}
|
||
|
||
.engagement-modal {
|
||
display: flex;
|
||
align-items: center;
|
||
justify-content: center;
|
||
position: fixed;
|
||
z-index: 10;
|
||
width: 100%;
|
||
height: 100%;
|
||
}
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||
|
||
.engagement-modal .inner {
|
||
background-color: white;
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||
border-radius: 0.5em;
|
||
margin: auto;
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||
border: 1px solid #cccccc;
|
||
}
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||
|
||
.engagement-modal .header {
|
||
padding: 20px 50px 10px 30px;
|
||
position: relative;
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||
}
|
||
|
||
.engagement-modal .title {
|
||
font-size: 20px;
|
||
font-weight: bold;
|
||
color: #333333;
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||
}
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||
|
||
.engagement-modal .title:hover {
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||
text-decoration: none;
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||
}
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||
|
||
.engagement-modal .close {
|
||
font-size: 18px;
|
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position: absolute;
|
||
top: 18px;
|
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right: 20px;
|
||
width: 32px;
|
||
height: 32px;
|
||
background: none;
|
||
border: none;
|
||
opacity: 0.8;
|
||
font-weight: bold;
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||
text-shadow: 0 1px 0 #fff;
|
||
}
|
||
|
||
.engagement-modal .close:hover {
|
||
background-color: rgba(146, 148, 151, 0.2);
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||
color: #000;
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||
border-radius: 50%;
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}
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|
||
.engagement-modal .close:after {
|
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content: '\2715';
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}
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.engagement-modal .content {
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padding: 0 30px 20px;
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width: min(450px, 90vw);
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height: min(450px, 90vw);
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scrollbar-width: thin;
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overflow: auto;
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overscroll-behavior: contain;
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}
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|
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.engagement-modal .loading-screen,
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display: flex;
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justify-content: center;
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align-items: center;
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height: 100%;
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font-size: 18px;
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}
|
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|
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color: var(--acc-ffffff-blue-1);
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font-weight: bold;
|
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}
|
||
|
||
.engagement-modal .loading-screen i {
|
||
font-size: 24px;
|
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}
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.engagement-modal .media-left,
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.engagement-modal .media-right {
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display: table-cell;
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vertical-align: top;
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}
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padding-right: 10px;
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}
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padding-left: 10px;
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}
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color: black;
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font-size: 16px;
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}
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.engagement-modal .avatar {
|
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border-radius: 50%;
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}
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||
|
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.engagement-modal .footer {
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margin: 20px 0 0;
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display: flex;
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justify-content: center;
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align-items: center;
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background-color: unset !important;
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border-top: none !important;
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}
|
||
|
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.engagement-modal .footer .btn {
|
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border: 1px solid transparent;
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}
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||
.engagement-modal .footer .btn-primary {
|
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color: #fff;
|
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border-color: #2e6da4;
|
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}
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.engagement-modal .footer button {
|
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background-color: var(--acc-ffffff-blue-2);
|
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padding: 6px 12px;
|
||
border-radius: 4px;
|
||
}
|
||
|
||
.engagement-modal .footer button:hover {
|
||
filter: brightness(1.2);
|
||
}
|
||
|
||
@keyframes anim-spin {
|
||
0% {
|
||
transform: rotate(0deg);
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||
}
|
||
100% {
|
||
transform: rotate(359deg);
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||
}
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||
}
|
||
|
||
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|
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display: inline-block;
|
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animation: anim-spin 2s infinite linear;
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}</style>
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Alpine.data('engagementModal', (nodeId) => ({
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||
|
||
nodeId: null,
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||
|
||
init() {
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||
this.nodeId = nodeId;
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},
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open() {
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||
this.updateStore();
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if (this.$store.article.engagement.page === 1 && !this.$store.article.engagement.unauthorized) {
|
||
this.$store.article.engagement.initializing = true;
|
||
this.fetchEngagements();
|
||
}
|
||
},
|
||
|
||
close() {
|
||
if (this.$store.article.engagement.open) {
|
||
this.$store.article.engagement.open = false;
|
||
}
|
||
},
|
||
|
||
updateStore() {
|
||
if (this.nodeId !== this.$store.article.id) {
|
||
this.$store.article.engagement.reset();
|
||
this.$store.article.id = this.nodeId;
|
||
}
|
||
},
|
||
|
||
fetchEngagements() {
|
||
if (this.$store.article.engagement.loading || !this.$store.article.engagement.additional) {
|
||
return;
|
||
}
|
||
|
||
this.$store.article.engagement.loading = true;
|
||
this.$store.global.getFromService('/services/nodes/' + this.$store.article.id + '/engagements?page=' + this.$store.article.engagement.page)
|
||
.then(res => {
|
||
res.json().then(data => {
|
||
for (let user of data.engagements) {
|
||
this.$store.article.engagement.users.push(user);
|
||
}
|
||
|
||
this.$store.article.engagement.additional = data.additional;
|
||
this.$store.article.engagement.page++;
|
||
});
|
||
})
|
||
.catch(err => {
|
||
err.json().then(data => {
|
||
if (data.error?.code === 4011) {
|
||
this.$store.article.engagement.unauthorized = true;
|
||
} else {
|
||
this.$store.modal_engagement_error.open();
|
||
}
|
||
});
|
||
})
|
||
.finally(() => {
|
||
// Allow the loader to gracefully exit
|
||
setTimeout(() => {
|
||
this.$store.article.engagement.loading = false;
|
||
this.$store.article.engagement.initializing = false;
|
||
}, 200);
|
||
});
|
||
},
|
||
|
||
formatJobData(user) {
|
||
if (user.profile.jobTitle && user.profile.companyName) {
|
||
return user.profile.jobTitle + ', ' + user.profile.companyName;
|
||
}
|
||
|
||
if (user.profile.jobTitle) {
|
||
return user.profile.jobTitle;
|
||
}
|
||
|
||
if (user.profile.companyName) {
|
||
return user.profile.companyName;
|
||
}
|
||
|
||
return null;
|
||
},
|
||
|
||
isDataUnavailable() {
|
||
return !this.$store.article.engagement.initializing && !this.$store.article.engagement.users.length;
|
||
},
|
||
|
||
isFooterShowing() {
|
||
return !this.$store.article.engagement.initializing
|
||
&& this.$store.article.engagement.additional
|
||
&& this.$store.article.engagement.page > 1;
|
||
}
|
||
}));
|
||
});
|
||
</script>
|
||
|
||
<div class="alpine-overlay" x-cloak x-show="$store.modal_engagement_error._open">
|
||
<div id="modal_engagement_error"
|
||
class="alpine-modal"
|
||
role="dialog"
|
||
tabindex="-1"
|
||
x-show="$store.modal_engagement_error._open"
|
||
x-on:click.self="$store.modal_engagement_error.dismissible && $store.modal_engagement_error.close()"
|
||
x-cloak
|
||
x-transition
|
||
>
|
||
<div class="dz-style modal-inner centered relative">
|
||
<button x-show="$store.modal_engagement_error.closeable"
|
||
class="btn-close"
|
||
x-on:click="$store.modal_engagement_error.close()"
|
||
aria-label="Close">
|
||
</button>
|
||
|
||
<div x-show="$store.modal_engagement_error.title" class="modal-header p-sm mt-sm mb-md">
|
||
<div class="title " x-text="$store.modal_engagement_error.title"></div>
|
||
</div>
|
||
|
||
<div class="modal-content py-md px-lg" x-bind:class="{ 'has-top-border': $store.modal_engagement_error.title }">
|
||
<p x-show="$store.modal_engagement_error.bodyText" class="my-none" x-text="$store.modal_engagement_error.bodyText"></p>
|
||
<p>The likes didn't load as expected. Please refresh the page and try again.</p>
|
||
</div>
|
||
|
||
<div x-show="$store.modal_engagement_error.options.length" class="modal-footer p-sm">
|
||
<template x-for="option in $store.modal_engagement_error.options">
|
||
<button x-show="option.canDisplay" x-text="option.text"
|
||
type="button"
|
||
x-bind:id="'button_modal_engagement_error_' + option.index"
|
||
x-bind:class="option.classList"
|
||
x-on:click="option.onClick"
|
||
x-bind:disabled="option.isDisabled"
|
||
></button>
|
||
</template>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
<script>
|
||
document.addEventListener("alpine:init", () => {
|
||
Alpine.store("modal_engagement_error", {
|
||
_open: false,
|
||
title: "Oops! Something Went Wrong",
|
||
bodyText: null,
|
||
options: [{"action":"dismiss","text":"Close"}],
|
||
closeable: true,
|
||
dismissible: true,
|
||
open(data) {
|
||
if (data) {
|
||
if (data.title) {
|
||
this.title = data.title;
|
||
}
|
||
if (data.bodyText) {
|
||
this.bodyText = data.bodyText;
|
||
}
|
||
if (data.options) {
|
||
this.options = data.options;
|
||
}
|
||
if (data.dismissAfterMs) {
|
||
setTimeout(() => this._open = false, data.dismissAfterMs);
|
||
}
|
||
}
|
||
this.updateOptions();
|
||
this._open = true;
|
||
},
|
||
close() {
|
||
// Manually click the buttons in which should run on dismiss.
|
||
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<link rel="stylesheet" media="all" href="https://dz2cdn1.dzone.com/themes/dz20/ftl/footer/styles.css">
|
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<div id="ftl-footer">
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<div class="container-fluid footerOuter" style="padding-bottom: 90px;">
|
||
<div class="row">
|
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<div class="col-md-12">
|
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|
||
<svg role="img" viewBox="0 0 24 24" class="w-4 h-4 mt-1.75 fill-current" aria-label="Follow our RSS feeds">
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||
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|
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||
<svg role="img" viewBox="0 0 24 24" aria-label="Follow us on X">
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||
<title>X</title>
|
||
<path d="M14.234 10.162 22.977 0h-2.072l-7.591 8.824L7.251 0H.258l9.168 13.343L.258 24H2.33l8.016-9.318L16.749 24h6.993zm-2.837 3.299-.929-1.329L3.076 1.56h3.182l5.965 8.532.929 1.329 7.754 11.09h-3.182z"></path>
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<svg role="img" viewBox="0 0 24 24" aria-label="Follow us on Facebook">
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<title>Facebook</title>
|
||
<path d="M9.101 23.691v-7.98H6.627v-3.667h2.474v-1.58c0-4.085 1.848-5.978 5.858-5.978.401 0 .955.042 1.468.103a8.68 8.68 0 0 1 1.141.195v3.325a8.623 8.623 0 0 0-.653-.036 26.805 26.805 0 0 0-.733-.009c-.707 0-1.259.096-1.675.309a1.686 1.686 0 0 0-.679.622c-.258.42-.374.995-.374 1.752v1.297h3.919l-.386 2.103-.287 1.564h-3.246v8.245C19.396 23.238 24 18.179 24 12.044c0-6.627-5.373-12-12-12s-12 5.373-12 12c0 5.628 3.874 10.35 9.101 11.647Z"></path>
|
||
</svg>
|
||
</a>
|
||
</li>
|
||
<li class="linkedin-icon">
|
||
<a href="https://www.linkedin.com/company/dzone/" target="_blank"
|
||
rel="noreferrer noopener">
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||
<svg viewBox="0 0 24 25" fill="none" aria-label="Follow us on LinkedIn">
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||
<path d="M6.20062 21.2143H1.84688V7.194H6.20062V21.2143ZM4.02141 5.2815C2.62922 5.2815 1.5 4.12838 1.5 2.73619C1.5 2.06747 1.76565 1.42614 2.2385 0.953285C2.71136 0.48043 3.35269 0.214783 4.02141 0.214783C4.69012 0.214783 5.33145 0.48043 5.80431 0.953285C6.27716 1.42614 6.54281 2.06747 6.54281 2.73619C6.54281 4.12838 5.413 5.2815 4.02141 5.2815ZM22.4953 21.2143H18.1509V14.3893C18.1509 12.7628 18.1181 10.6768 15.8873 10.6768C13.6237 10.6768 13.2769 12.444 13.2769 14.2721V21.2143H8.92781V7.194H13.1034V9.1065H13.1644C13.7456 8.00494 15.1655 6.84244 17.2838 6.84244C21.69 6.84244 22.5 9.744 22.5 13.5128V21.2143H22.4953Z" fill="currentColor"></path>
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</svg>
|
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</a>
|
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</li>
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</ul>
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</div>
|
||
|
||
<div class="top-section col-xs-12">
|
||
<div class="col-xs-12 col-sm-6">
|
||
<p class="section-header">ABOUT US</p>
|
||
<ul class="link-group">
|
||
<li><a href="/pages/about" rel="noreferrer noopener">About DZone</a></li>
|
||
<li><a href="/cdn-cgi/l/email-protection#5a292f2a2a35282e1a3e2035343f74393537" rel="noreferrer noopener">Support and feedback</a></li>
|
||
<li><a href="/pages/dzone-community-research">Community research</a></li>
|
||
</ul>
|
||
</div>
|
||
<div class="col-xs-12 col-sm-6">
|
||
<p class="section-header">ADVERTISE</p>
|
||
<ul class="link-group">
|
||
<li><a href="https://advertise.dzone.com" target="_blank" rel="noreferrer noopener">Advertise with DZone</a></li>
|
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|
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|
||
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|
||
|
||
<div class="bottom-section col-xs-12">
|
||
<div class="col-xs-12 col-sm-6">
|
||
<p class="section-header">CONTRIBUTE ON DZONE</p>
|
||
<ul class="bottom-top-list link-group">
|
||
<li><a href="/articles/dzones-article-submission-guidelines">Article Submission Guidelines</a></li>
|
||
<li><a href="/pages/contribute" rel="noreferrer noopener">Become a Contributor</a></li>
|
||
<li><a href="/pages/core" rel="noreferrer noopener">Core Program</a></li>
|
||
<li><a href="/writers-zone" rel="noreferrer noopener">Visit the Writers' Zone</a></li>
|
||
</ul>
|
||
|
||
<p class="section-header">LEGAL</p>
|
||
<ul class="link-group">
|
||
<li><a href="https://technologyadvice.com/terms-conditions/" target="_blank" rel="noreferrer noopener">Terms of Service</a></li>
|
||
<li><a href="https://technologyadvice.com/privacy-policy/" target="_blank" rel="noreferrer noopener">Privacy Policy</a></li>
|
||
</ul>
|
||
</div>
|
||
<div class="col-xs-12 col-sm-6">
|
||
<p class="section-header">CONTACT US</p>
|
||
<ul class="link-group">
|
||
<li>3343 Perimeter Hill Drive</li>
|
||
<li>Suite 215</li>
|
||
<li>Nashville, TN 37211</li>
|
||
<li><a href="/cdn-cgi/l/email-protection#d8abada8a8b7aaac98bca2b7b6bdf6bbb7b5" rel="noreferrer noopener"><span class="__cf_email__" data-cfemail="8dfef8fdfde2fff9cde9f7e2e3e8a3eee2e0">[email protected]</span></a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
<div class="right col-xs-12 col-sm-5">
|
||
|
||
<p class="connect-text">Let's be friends:</p>
|
||
<div class="col-xs-12 social-media-icons footer-wide">
|
||
<ul class="icons-only">
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||
<li class="rss-icon" id="rss-footer-1">
|
||
<a href="/pages/feeds" target="_blank" rel="noreferrer noopener">
|
||
<svg role="img" viewBox="0 0 24 24" aria-label="Follow our RSS feeds">
|
||
<title>RSS</title>
|
||
<path d="M19.199 24C19.199 13.467 10.533 4.8 0 4.8V0c13.165 0 24 10.835 24 24h-4.801zM3.291 17.415c1.814 0 3.293 1.479 3.293 3.295 0 1.813-1.485 3.29-3.301 3.29C1.47 24 0 22.526 0 20.71s1.475-3.294 3.291-3.295zM15.909 24h-4.665c0-6.169-5.075-11.245-11.244-11.245V8.09c8.727 0 15.909 7.184 15.909 15.91z"></path>
|
||
</svg>
|
||
</a>
|
||
</li>
|
||
<li class="twitter-icon">
|
||
<a href="https://twitter.com/DZoneInc" target="_blank" rel="noreferrer noopener">
|
||
<svg role="img" viewBox="0 0 24 24" aria-label="Follow us on X">
|
||
<title>X</title>
|
||
<path d="M14.234 10.162 22.977 0h-2.072l-7.591 8.824L7.251 0H.258l9.168 13.343L.258 24H2.33l8.016-9.318L16.749 24h6.993zm-2.837 3.299-.929-1.329L3.076 1.56h3.182l5.965 8.532.929 1.329 7.754 11.09h-3.182z"></path>
|
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</svg>
|
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</a>
|
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</li>
|
||
<li class="facebook-icon">
|
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<a href="https://www.facebook.com/DZoneInc" target="_blank" rel="noreferrer noopener">
|
||
<svg role="img" viewBox="0 0 24 24" aria-label="Follow us on Facebook">
|
||
<title>Facebook</title>
|
||
<path d="M9.101 23.691v-7.98H6.627v-3.667h2.474v-1.58c0-4.085 1.848-5.978 5.858-5.978.401 0 .955.042 1.468.103a8.68 8.68 0 0 1 1.141.195v3.325a8.623 8.623 0 0 0-.653-.036 26.805 26.805 0 0 0-.733-.009c-.707 0-1.259.096-1.675.309a1.686 1.686 0 0 0-.679.622c-.258.42-.374.995-.374 1.752v1.297h3.919l-.386 2.103-.287 1.564h-3.246v8.245C19.396 23.238 24 18.179 24 12.044c0-6.627-5.373-12-12-12s-12 5.373-12 12c0 5.628 3.874 10.35 9.101 11.647Z"></path>
|
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</svg>
|
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</a>
|
||
</li>
|
||
<li class="linkedin-icon">
|
||
<a href="https://www.linkedin.com/company/dzone/" target="_blank"
|
||
rel="noreferrer noopener">
|
||
<svg viewBox="0 0 24 25" fill="none" aria-label="Follow us on LinkedIn">
|
||
<path d="M6.20062 21.2143H1.84688V7.194H6.20062V21.2143ZM4.02141 5.2815C2.62922 5.2815 1.5 4.12838 1.5 2.73619C1.5 2.06747 1.76565 1.42614 2.2385 0.953285C2.71136 0.48043 3.35269 0.214783 4.02141 0.214783C4.69012 0.214783 5.33145 0.48043 5.80431 0.953285C6.27716 1.42614 6.54281 2.06747 6.54281 2.73619C6.54281 4.12838 5.413 5.2815 4.02141 5.2815ZM22.4953 21.2143H18.1509V14.3893C18.1509 12.7628 18.1181 10.6768 15.8873 10.6768C13.6237 10.6768 13.2769 12.444 13.2769 14.2721V21.2143H8.92781V7.194H13.1034V9.1065H13.1644C13.7456 8.00494 15.1655 6.84244 17.2838 6.84244C21.69 6.84244 22.5 9.744 22.5 13.5128V21.2143H22.4953Z" fill="currentColor"></path>
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</div>
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</div>
|
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</div>
|
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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||
'https://dz2cdn1.dzone.com/themes/dz20/lib/codemirror/addon/mode/multiplex.js',
|
||
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|
||
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|
||
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|
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|
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|
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|
||
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
||
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|
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|
||
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|
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|
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|
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|
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|
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|
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|
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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localStorage.setItem(key, storedValue);
|
||
|
||
return value;
|
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|
||
|
||
function GAM_synchronousRequest(params) {
|
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|
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}
|
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|
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xhr.send(null);
|
||
if (xhr.status === 200) {
|
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|
||
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|
||
throw new Error('Request failed: ' + xhr.statusText);
|
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}
|
||
}
|
||
|
||
function GAM_fetch_data(params) {
|
||
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|
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|
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|
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|
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|
||
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|
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|
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|
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|
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||
|
||
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|
||
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