Files
nexus/sreweekly/pages/115.html
2026-09-12 17:23:01 +08:00

432 lines
35 KiB
HTML
Raw Permalink Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
<!DOCTYPE html>
<html lang="en-US">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="initial-scale=1.0" />
<title>SRE Weekly Issue #115 &#8211; SRE WEEKLY</title>
<meta name='robots' content='max-image-preview:large' />
<link rel="profile" href="http://gmpg.org/xfn/11" />
<link rel="pingback" href="https://sreweekly.com/xmlrpc.php" />
<link rel="alternate" type="application/rss+xml" title="SRE WEEKLY &raquo; Feed" href="https://sreweekly.com/feed/" />
<link rel="alternate" type="application/rss+xml" title="SRE WEEKLY &raquo; Comments Feed" href="https://sreweekly.com/comments/feed/" />
<link rel="alternate" type="application/rss+xml" title="SRE WEEKLY &raquo; SRE Weekly Issue #115 Comments Feed" href="https://sreweekly.com/sre-weekly-issue-115/feed/" />
<link rel="alternate" title="oEmbed (JSON)" type="application/json+oembed" href="https://sreweekly.com/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fsreweekly.com%2Fsre-weekly-issue-115%2F" />
<link rel="alternate" title="oEmbed (XML)" type="text/xml+oembed" href="https://sreweekly.com/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fsreweekly.com%2Fsre-weekly-issue-115%2F&#038;format=xml" />
<style id="wp-img-auto-sizes-contain-inline-css">
img:is([sizes=auto i],[sizes^="auto," i]){contain-intrinsic-size:3000px 1500px}
/*# sourceURL=wp-img-auto-sizes-contain-inline-css */
</style>
<style id="wp-block-library-inline-css">
:root{--wp-block-synced-color:#7a00df;--wp-block-synced-color--rgb:122,0,223;--wp-bound-block-color:var(--wp-block-synced-color);--wp-editor-canvas-background:#ddd;--wp-admin-theme-color:#007cba;--wp-admin-theme-color--rgb:0,124,186;--wp-admin-theme-color-darker-10:#006ba1;--wp-admin-theme-color-darker-10--rgb:0,107,160.5;--wp-admin-theme-color-darker-20:#005a87;--wp-admin-theme-color-darker-20--rgb:0,90,135;--wp-admin-border-width-focus:2px}@media (min-resolution:192dpi){:root{--wp-admin-border-width-focus:1.5px}}.wp-element-button{cursor:pointer}:root .has-very-light-gray-background-color{background-color:#eee}:root .has-very-dark-gray-background-color{background-color:#313131}:root .has-very-light-gray-color{color:#eee}:root .has-very-dark-gray-color{color:#313131}:root .has-vivid-green-cyan-to-vivid-cyan-blue-gradient-background{background:linear-gradient(135deg,#00d084,#0693e3)}:root .has-purple-crush-gradient-background{background:linear-gradient(135deg,#34e2e4,#4721fb 50%,#ab1dfe)}:root .has-hazy-dawn-gradient-background{background:linear-gradient(135deg,#faaca8,#dad0ec)}:root .has-subdued-olive-gradient-background{background:linear-gradient(135deg,#fafae1,#67a671)}:root .has-atomic-cream-gradient-background{background:linear-gradient(135deg,#fdd79a,#004a59)}:root .has-nightshade-gradient-background{background:linear-gradient(135deg,#330968,#31cdcf)}:root .has-midnight-gradient-background{background:linear-gradient(135deg,#020381,#2874fc)}:root{--wp--preset--font-size--normal:16px;--wp--preset--font-size--huge:42px}.has-regular-font-size{font-size:1em}.has-larger-font-size{font-size:2.625em}.has-normal-font-size{font-size:var(--wp--preset--font-size--normal)}.has-huge-font-size{font-size:var(--wp--preset--font-size--huge)}:root .has-text-align-center{text-align:center}:root .has-text-align-left{text-align:left}:root .has-text-align-right{text-align:right}.has-fit-text{white-space:nowrap!important}#end-resizable-editor-section{display:none}.aligncenter{clear:both}.items-justified-left{justify-content:flex-start}.items-justified-center{justify-content:center}.items-justified-right{justify-content:flex-end}.items-justified-space-between{justify-content:space-between}.screen-reader-text{word-wrap:normal!important;border:0;clip-path:inset(50%);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px;word-break:normal!important}.screen-reader-text:focus{background-color:#ddd;clip-path:none;color:#444;display:block;font-size:1em;height:auto;left:5px;line-height:normal;padding:15px 23px 14px;text-decoration:none;top:5px;width:auto;z-index:100000}html :where(.has-border-color){border-style:solid}html :where([style^=border-color],[style*=";border-color"],[style*="; border-color"]){border-style:solid}html :where([style^=border-top-color],[style*=";border-top-color"],[style*="; border-top-color"]){border-top-style:solid}html :where([style^=border-right-color],[style*=";border-right-color"],[style*="; border-right-color"]){border-right-style:solid}html :where([style^=border-bottom-color],[style*=";border-bottom-color"],[style*="; border-bottom-color"]){border-bottom-style:solid}html :where([style^=border-left-color],[style*=";border-left-color"],[style*="; border-left-color"]){border-left-style:solid}html :where([style^=border-width],[style*=";border-width"],[style*="; border-width"]){border-style:solid}html :where([style^=border-top-width],[style*=";border-top-width"],[style*="; border-top-width"]){border-top-style:solid}html :where([style^=border-right-width],[style*=";border-right-width"],[style*="; border-right-width"]){border-right-style:solid}html :where([style^=border-bottom-width],[style*=";border-bottom-width"],[style*="; border-bottom-width"]){border-bottom-style:solid}html :where([style^=border-left-width],[style*=";border-left-width"],[style*="; border-left-width"]){border-left-style:solid}html :where(img[class*=wp-image-]){height:auto;max-width:100%}:where(figure){margin:0 0 1em}html :where(.is-position-sticky){--wp-admin--admin-bar--position-offset:var(--wp-admin--admin-bar--height,0px)}@media screen and (max-width:600px){html :where(.is-position-sticky){--wp-admin--admin-bar--position-offset:0px}}
/*# sourceURL=/wp-includes/css/dist/block-library/common.min.css */
</style>
<style id="classic-theme-styles-inline-css">
/*! This file is auto-generated */
.wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none}
/*# sourceURL=/wp-includes/css/classic-themes.min.css */
</style>
<style id="global-styles-inline-css">
:root{--wp--preset--aspect-ratio--square: 1;--wp--preset--aspect-ratio--4-3: 4/3;--wp--preset--aspect-ratio--3-4: 3/4;--wp--preset--aspect-ratio--3-2: 3/2;--wp--preset--aspect-ratio--2-3: 2/3;--wp--preset--aspect-ratio--16-9: 16/9;--wp--preset--aspect-ratio--9-16: 9/16;--wp--preset--color--black: #000000;--wp--preset--color--cyan-bluish-gray: #abb8c3;--wp--preset--color--white: #ffffff;--wp--preset--color--pale-pink: #f78da7;--wp--preset--color--vivid-red: #cf2e2e;--wp--preset--color--luminous-vivid-orange: #ff6900;--wp--preset--color--luminous-vivid-amber: #fcb900;--wp--preset--color--light-green-cyan: #7bdcb5;--wp--preset--color--vivid-green-cyan: #00d084;--wp--preset--color--pale-cyan-blue: #8ed1fc;--wp--preset--color--vivid-cyan-blue: #0693e3;--wp--preset--color--vivid-purple: #9b51e0;--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple: linear-gradient(135deg,rgb(6,147,227) 0%,rgb(155,81,224) 100%);--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan: linear-gradient(135deg,rgb(122,220,180) 0%,rgb(0,208,130) 100%);--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange: linear-gradient(135deg,rgb(252,185,0) 0%,rgb(255,105,0) 100%);--wp--preset--gradient--luminous-vivid-orange-to-vivid-red: linear-gradient(135deg,rgb(255,105,0) 0%,rgb(207,46,46) 100%);--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray: linear-gradient(135deg,rgb(238,238,238) 0%,rgb(169,184,195) 100%);--wp--preset--gradient--cool-to-warm-spectrum: linear-gradient(135deg,rgb(74,234,220) 0%,rgb(151,120,209) 20%,rgb(207,42,186) 40%,rgb(238,44,130) 60%,rgb(251,105,98) 80%,rgb(254,248,76) 100%);--wp--preset--gradient--blush-light-purple: linear-gradient(135deg,rgb(255,206,236) 0%,rgb(152,150,240) 100%);--wp--preset--gradient--blush-bordeaux: linear-gradient(135deg,rgb(254,205,165) 0%,rgb(254,45,45) 50%,rgb(107,0,62) 100%);--wp--preset--gradient--luminous-dusk: linear-gradient(135deg,rgb(255,203,112) 0%,rgb(199,81,192) 50%,rgb(65,88,208) 100%);--wp--preset--gradient--pale-ocean: linear-gradient(135deg,rgb(255,245,203) 0%,rgb(182,227,212) 50%,rgb(51,167,181) 100%);--wp--preset--gradient--electric-grass: linear-gradient(135deg,rgb(202,248,128) 0%,rgb(113,206,126) 100%);--wp--preset--gradient--midnight: linear-gradient(135deg,rgb(2,3,129) 0%,rgb(40,116,252) 100%);--wp--preset--font-size--small: 13px;--wp--preset--font-size--medium: 20px;--wp--preset--font-size--large: 36px;--wp--preset--font-size--x-large: 42px;--wp--preset--spacing--20: 0.44rem;--wp--preset--spacing--30: 0.67rem;--wp--preset--spacing--40: 1rem;--wp--preset--spacing--50: 1.5rem;--wp--preset--spacing--60: 2.25rem;--wp--preset--spacing--70: 3.38rem;--wp--preset--spacing--80: 5.06rem;--wp--preset--shadow--natural: 6px 6px 9px rgba(0, 0, 0, 0.2);--wp--preset--shadow--deep: 12px 12px 50px rgba(0, 0, 0, 0.4);--wp--preset--shadow--sharp: 6px 6px 0px rgba(0, 0, 0, 0.2);--wp--preset--shadow--outlined: 6px 6px 0px -3px rgb(255, 255, 255), 6px 6px rgb(0, 0, 0);--wp--preset--shadow--crisp: 6px 6px 0px rgb(0, 0, 0);}.wp-block-button{--wp--preset--dimension--25: 25%;--wp--preset--dimension--50: 50%;--wp--preset--dimension--75: 75%;--wp--preset--dimension--100: 100%;}:where(body) { margin: 0; }:where(.is-layout-flex){gap: 0.5em;}:where(.is-layout-grid){gap: 0.5em;}body .is-layout-flex{display: flex;}.is-layout-flex{flex-wrap: wrap;align-items: center;}.is-layout-flex > :is(*, div){margin: 0;}body .is-layout-grid{display: grid;}.is-layout-grid > :is(*, div){margin: 0;}body{padding-top: 0px;padding-right: 0px;padding-bottom: 0px;padding-left: 0px;}:root :where(.wp-element-button, .wp-block-button__link){background-color: #32373c;border-width: 0;color: #fff;font-family: inherit;font-size: inherit;font-style: inherit;font-weight: inherit;letter-spacing: inherit;line-height: inherit;padding-top: calc(0.667em + 2px);padding-right: calc(1.333em + 2px);padding-bottom: calc(0.667em + 2px);padding-left: calc(1.333em + 2px);text-decoration: none;text-transform: inherit;}.has-black-color{color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-color{color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-color{color: var(--wp--preset--color--white) !important;}.has-pale-pink-color{color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-color{color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-color{color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-color{color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-color{color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-color{color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-color{color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-color{color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-color{color: var(--wp--preset--color--vivid-purple) !important;}.has-black-background-color{background-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-background-color{background-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-background-color{background-color: var(--wp--preset--color--white) !important;}.has-pale-pink-background-color{background-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-background-color{background-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-background-color{background-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-background-color{background-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-background-color{background-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-background-color{background-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-background-color{background-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-background-color{background-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-background-color{background-color: var(--wp--preset--color--vivid-purple) !important;}.has-black-border-color{border-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-border-color{border-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-border-color{border-color: var(--wp--preset--color--white) !important;}.has-pale-pink-border-color{border-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-border-color{border-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-border-color{border-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-border-color{border-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-border-color{border-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-border-color{border-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-border-color{border-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-border-color{border-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-border-color{border-color: var(--wp--preset--color--vivid-purple) !important;}.has-vivid-cyan-blue-to-vivid-purple-gradient-background{background: var(--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple) !important;}.has-light-green-cyan-to-vivid-green-cyan-gradient-background{background: var(--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan) !important;}.has-luminous-vivid-amber-to-luminous-vivid-orange-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange) !important;}.has-luminous-vivid-orange-to-vivid-red-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-orange-to-vivid-red) !important;}.has-very-light-gray-to-cyan-bluish-gray-gradient-background{background: var(--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray) !important;}.has-cool-to-warm-spectrum-gradient-background{background: var(--wp--preset--gradient--cool-to-warm-spectrum) !important;}.has-blush-light-purple-gradient-background{background: var(--wp--preset--gradient--blush-light-purple) !important;}.has-blush-bordeaux-gradient-background{background: var(--wp--preset--gradient--blush-bordeaux) !important;}.has-luminous-dusk-gradient-background{background: var(--wp--preset--gradient--luminous-dusk) !important;}.has-pale-ocean-gradient-background{background: var(--wp--preset--gradient--pale-ocean) !important;}.has-electric-grass-gradient-background{background: var(--wp--preset--gradient--electric-grass) !important;}.has-midnight-gradient-background{background: var(--wp--preset--gradient--midnight) !important;}.has-small-font-size{font-size: var(--wp--preset--font-size--small) !important;}.has-medium-font-size{font-size: var(--wp--preset--font-size--medium) !important;}.has-large-font-size{font-size: var(--wp--preset--font-size--large) !important;}.has-x-large-font-size{font-size: var(--wp--preset--font-size--x-large) !important;}
/*# sourceURL=global-styles-inline-css */
</style>
<link rel='stylesheet' id='genericons-css' href='https://sreweekly.com/wp-content/themes/frontier/includes/genericons/genericons.css?ver=1.3.5' media='all' />
<link rel='stylesheet' id='frontier-main-css' href='https://sreweekly.com/wp-content/themes/frontier/style.css?ver=1.3.5' media='all' />
<link rel='stylesheet' id='frontier-responsive-css' href='https://sreweekly.com/wp-content/themes/frontier/responsive.css?ver=1.3.5' media='all' />
<script id="jquery-core-js" src="https://sreweekly.com/wp-includes/js/jquery/jquery.min.js?ver=3.7.1"></script>
<script id="jquery-migrate-js" src="https://sreweekly.com/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1"></script>
<link rel="https://api.w.org/" href="https://sreweekly.com/wp-json/" /><link rel="alternate" title="JSON" type="application/json" href="https://sreweekly.com/wp-json/wp/v2/posts/634" /><link rel="EditURI" type="application/rsd+xml" title="RSD" href="https://sreweekly.com/xmlrpc.php?rsd" />
<meta name="generator" content="WordPress 7.1" />
<link rel="canonical" href="https://sreweekly.com/sre-weekly-issue-115/" />
<link rel='shortlink' href='https://sreweekly.com/?p=634' />
<meta property="Frontier Theme" content="1.3.5" />
<style type="text/css" media="screen">
#container {width: 960px;}
#header {min-height: 0px;}
#content {width: 65%;}
#sidebar-left {width: 35%;}
#sidebar-right {width: 35%;}
</style>
<style type="text/css" media="screen">
.page-template-page-cs-php #content, .page-template-page-sc-php #content {width: 65%;}
.page-template-page-cs-php #sidebar-left, .page-template-page-sc-php #sidebar-left,
.page-template-page-cs-php #sidebar-right, .page-template-page-sc-php #sidebar-right {width: 35%;}
.page-template-page-scs-php #content {width: 50%;}
.page-template-page-scs-php #sidebar-left {width: 25%;}
.page-template-page-scs-php #sidebar-right {width: 25%;}
</style>
<style type="text/css" media="screen">
#header {background-color:#FFFFFF;}
#nav-main {background-color:#096572;}
#nav-main .nav-main {border-left: 1px solid #003d4a; border-right: 1px solid #278390;}
#nav-main .nav-main > li, #nav-main .nav-main > ul > .page_item {border-left: 1px solid #278390; border-right: 1px solid #003d4a;}
#top-bar {background-color:#222222;}
#bottom-bar {background-color:#222222;}
#main {background-color:#F5F5F5;}
.blog-view, .single-view, .author-info, .archive-info, .form-404 {background-color:#FFFFFF;}
.blog-view.sticky {background-color:#FFDC8A;}
.frontier-widget {background-color:#FFFFFF;}
.blog-view, .comment-author-admin > .comment-body, .bypostauthor > .comment-body {border-top: 6px solid #047e90;}
.page-nav > *, .comment-nav > *, .author-info .title, .comment-reply-link, .widget-title,
.widget_search .search-submit, .widget_calendar caption {background-color:#047e90;}
.genericon {color:#047e90;}
a {color:#07525c;}
a:hover {color:#047e90;}
</style>
<style id="custom-background-css">
body.custom-background { background-image: url("https://sreweekly.com/wp-content/themes/frontier/images/honeycomb.png"); background-position: left top; background-size: auto; background-repeat: repeat; background-attachment: scroll; }
</style>
<link rel="icon" href="https://sreweekly.com/wp-content/uploads/2015/12/cropped-sreweekly-logo-axes-32x32.png" sizes="32x32" />
<link rel="icon" href="https://sreweekly.com/wp-content/uploads/2015/12/cropped-sreweekly-logo-axes-192x192.png" sizes="192x192" />
<link rel="apple-touch-icon" href="https://sreweekly.com/wp-content/uploads/2015/12/cropped-sreweekly-logo-axes-180x180.png" />
<meta name="msapplication-TileImage" content="https://sreweekly.com/wp-content/uploads/2015/12/cropped-sreweekly-logo-axes-270x270.png" />
<!-- Custom CSS -->
<style type="text/css" media="screen">
#header-logo {
padding: 3%;
width: 35em;
max-width: 100%;
}
H1, h2, h3, h4, h5, h6, #theme-link, #nav-main .nav-main a, #nav-top .nav-top a, .widget-title {
font-family: 'Roboto', Sans-serif;
}
.email_only {
display: none;
}
.pocket-post, .sreweekly-entry {
margin-top: 0.5em;
margin-bottom: 0.5em;
}
.pocket-title A,
.sreweekly-title A,
.sreweekly-outages LI A {
font-weight: bold;
}
.entry-content H2 {
margin-top: 1em;
}
.sreweekly-outage {
list-style-type: none !important;
}
.sreweekly-footer {
font-style: italic;
text-align: center;
}
.widget-footer {
background: rgb(228,228,228);
border: 1px solid black;
//box-shadow: 2px 2px 5px rgb(32,32,32);
box-shadow: 0 0 2px #181818;
}
IMG.sreweekly-bio {
border: 1px solid black;
box-shadow: 0 0 2px #333;
margin-right: 1em;
margin-bottom: 0.2em;
}
.page .entry-title {
text-transform: uppercase;
}
blockquote em {
font-weight: bold;
}
.sreweekly-sponsor-message {
border: 1px solid #b0b0b0;
margin-top: 2rem;
margin-bottom: 2rem;
margin-left: auto;
margin-right: auto;
padding-left: 1rem;
padding-right: 1rem;
width: 80%;
align: center;
}
.sreweekly-sponsor-message h2 {
text-align: center;
font-size: 75%;
color: #979797;
}
</style>
<!-- Custom CSS End -->
<link rel='stylesheet' id='yikes-inc-easy-mailchimp-public-styles-css' href='https://sreweekly.com/wp-content/plugins/yikes-inc-easy-mailchimp-extender/public/css/yikes-inc-easy-mailchimp-extender-public.min.css?ver=7.1' media='all' />
</head>
<body class="wp-singular post-template-default single single-post postid-634 single-format-standard custom-background wp-theme-frontier">
<div id="container" class="cf" itemscope itemtype="http://schema.org/WebPage">
<div id="header" class="cf" itemscope itemtype="http://schema.org/WPHeader" role="banner">
<div id="header-logo">
<a href="https://sreweekly.com/"><img src="https://sreweekly.com/wp-content/uploads/2015/12/sreweekly-header-axes-3.png" alt="SRE WEEKLY" /></a>
</div>
</div>
<nav id="nav-main" class="cf stack" itemscope itemtype="http://schema.org/SiteNavigationElement" role="navigation" aria-label="Main Menu">
<ul id="menu-main-menu" class="nav-main"><li id="menu-item-1487" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-1487"><a href="https://sreweekly.com/about-sre-weekly-2/">About SRE Weekly</a></li>
<li id="menu-item-1488" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-1488"><a href="https://sreweekly.com/bio/">Bio</a></li>
<li id="menu-item-1489" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-1489"><a href="https://sreweekly.com/other-info/">Other Info</a></li>
<li id="menu-item-1490" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-1490"><a href="https://sreweekly.com/sponsorship-information/">Sponsorship Information</a></li>
</ul>
</nav>
<div id="main" class="col-cs cf">
<div id="content" class="cf" itemscope itemtype="http://schema.org/Blog" role="main">
<article id="post-634" class="single-view post-634 post type-post status-publish format-standard hentry category-general" itemprop="blogPost" itemscope itemtype="http://schema.org/BlogPosting">
<header class="entry-header cf">
<h1 class="entry-title" itemprop="headline" ><a href="https://sreweekly.com/sre-weekly-issue-115/">SRE Weekly Issue #115</a></h1>
</header>
<div class="entry-byline cf">
<div class="entry-date" itemprop="datePublished" >
<i class="genericon genericon-day"></i><a class="updated" href="https://sreweekly.com/sre-weekly-issue-115/">March 25, 2018</a>
</div>
</div>
<div class="entry-content cf" itemprop="text" >
<a href="https://sreweekly.com/sre-weekly-issue-115/" title="Permalink to SRE Weekly Issue #115" class="email_only">View on sreweekly.com</a>
<div class="sreweekly-sponsor-message" style="border: 1px solid #b0b0b0; padding-left: 1rem; padding-right: 1rem; width: 80%; align: center; margin: 2rem auto 2rem auto;">
<h2 style="text-align: center; font-size: 55%; color: #b0b0b0;">SPONSOR MESSAGE</h2>
<p>SREcon addresses engineering resilience, reliability, and performance in complex distributed systems. Join us to grab Jason Hand&#8217;s new SRE book, and attend a book signing w/ Nicole Forsgren and Jez Humble. March 27-29. <a href="http://try.victorops.com/SREWeekly/SREcon">http://try.victorops.com/SREWeekly/SREcon</a></p>
</div>
<h2>Articles</h2>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="http://www.adaptivecapacitylabs.com/blog/2018/03/23/moving-past-shallow-incident-data/" target="_blank">Moving Past Shallow Incident Data</a></div>
<div class="sreweekly-description">
<p>Metrics like Mean Time to Detection (MTTD), Resolution (MTTR), and the like pave over all of the incredibly valuable details of the individual incidents. If you place a lot of emphasis on aggregate incident response metrics, this article may cause you to rethink your methods.</p>
<blockquote><p>Incidents are unplanned investments. When you focus solely on shallow data you are giving up the return on those investments that you can realize by deeper and more elaborate analysis.</p></blockquote>
<p><small>John Allspaw — Adaptive Capacity Labs</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://rachelbythebay.com/w/2018/03/23/ducttape/" target="_blank">Look for the duct tape</a></div>
<div class="sreweekly-description">
<p>Duct tape: you know, all the little shell scripts you have in your <code>~/bin</code> directory that you wrote because your system&#8217;s tooling got in your way or didn&#8217;t do what you needed? Find that, according to this article, and you&#8217;ll find interesting things to work on to make the system better. I&#8217;d add that these rough edges are often also the kinds of things that contribute to incidents.</p>
<p><small>Rachel Kroll</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://gocardless.com/blog/incident-review-api-and-dashboard-outage-on-10th-october/" target="_blank">Incident review: API and Dashboard outage on 10 October 2017</a></div>
<div class="sreweekly-description">
<p>A thoughtful and detailed incident post-analysis, including an in-depth discussion of the weeks-long investigation to determine the contributing factors. The outage involved the interaction of Pacemaker and Postgres.</p>
<p><small>Chris Sinjakli , Harry Panayiotou , Lawrence Jones , Norberto Lopes and Raúl Naveiras — GoCardless</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://thenewstack.io/chaos-engineering-can-give-distributed-systems-stability/" target="_blank">How Chaos Engineering Can Bring Stability to Your Distributed Systems</a></div>
<div class="sreweekly-description">
<p>Here&#8217;s a nice overview of chaos engineering, including a mention of a tool I wasn&#8217;t aware of for applying chaos to Docker containers.</p>
<p><small>Jennifer Riggins — The New Stack</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://prometheus.io/blog/2016/07/23/pull-does-not-scale-or-does-it/" target="_blank">Pull doesn&#8217;t scale &#8211; or does it?</a></div>
<div class="sreweekly-description">
<p>The question in the title refers to the gathering of metrics from many systems in an infrastructure. Do they push their metrics in, or should the system pull metrics from each host instead? This Prometheus author explains why they pull and how it scales.</p>
<p><small>Julius Volz — Prometheus</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="http://blog.kontena.io/zero-dowtime-deployments-with-containers/" target="_blank">Zero downtime deployments with containers</a></div>
<div class="sreweekly-description">
<p>A primer on achieving seamless deployments with Docker, including examples.</p>
<p><small>Jussi Nummelin — Kontena</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="http://foodfightshow.org/2018/03/observability.html" target="_blank">observability &#8211; Food Fight</a></div>
<div class="sreweekly-description">
<p>I had some extra time for reviewing content this week, and I took the opportunity to listen to this episode of the Food Fight podcast, with a focus on observability. The discussion is really excellent, and there are some really thought-provoking moments.</p>
<p><small>Nell Shamrell-Harrington, with Nathen Harvey, Charity Majors, and Jamie Osler</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://blog.buildo.io/enable-your-devs-to-do-ops-9a0a870baa1" target="_blank">Enable your Devs to do Ops</a></div>
<div class="sreweekly-description">
<p>How? By writing runbooks. This article takes you through how, why, and what tools to use as you develop runbooks for your systems.</p>
<p><small>Francesco Negri — Buildo</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.threatstack.com/blog/how-threat-stack-does-devops-part-iv-making-engineers-accountable/" target="_blank">How Threat Stack Does DevOps (Part IV): Making Engineers Accountable</a></div>
<div class="sreweekly-description">
<p>As a security-focused company, it only makes sense that Threat Stack would focus on safety when giving developers access to operate their software production.</p>
<blockquote><p>We believe that good operations makes for good security. Reducing the scope of engineers’ access to systems reduces the noise if we ever have to investigate malicious activity.</p></blockquote>
<p><small>Pete Cheslock — Threat Stack</small></p>
</div>
</div>
<h2>Outages</h2>
<ul class="sreweekly-outages">
<li><a href="https://www.itnews.com.au/news/dozens-of-aussie-banks-go-down-after-telstra-outage-487252">Data Action</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">Data Action is a dependency of many Australian banks.</li>
</ul>
</li>
<li><a href="https://www.traviscistatus.com/incidents/jww6stq6pk4s">Travis CI</a></li>
<li><a href="http://status.aws.amazon.com/">S3</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">Amazon S3 had a pair of outages for connections through <a href="https://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/vpc-endpoints.html">VPC Endpoints</a>. The Travis CI, Datadog, and New Relic outages were around the same time, but I can&#8217;t tell conclusively whether they were related.</li>
</ul>
</li>
<li><a href="https://status.datadoghq.com/incidents/8vpg5zvlnsht">Datadog</a></li>
<li><a href="https://status.newrelic.com/incidents/63jvb51dyj6q">New Relic</a></li>
</ul>
</div>
<footer class="entry-footer cf">
</footer>
</article>
</div>
<div id="sidebar-right" class="sidebar cf" itemscope itemtype="http://schema.org/WPSideBar" role="complementary" aria-label="Sidebar Right">
<aside id="widgets-wrap-sidebar-right">
<section id="yikes_easy_mc_widget-4" class="widget-sidebar frontier-widget widget_yikes_easy_mc_widget"><h2 class="widget-title">Subscribe</h2>
<section id="yikes-mailchimp-container-1" class="yikes-mailchimp-container yikes-mailchimp-container-1 ">
<section class="yikes-mailchimp-form-description yikes-mailchimp-form-description-1">Subscribe to SRE Weekly by email. Your email address will be stored and used only to send SRE Weekly issues to you. You may unsubscribe at any time.</section> <form id="subscribe-1" class="yikes-easy-mc-form yikes-easy-mc-form-1 " method="POST" data-attr-form-id="1">
<label for="yikes-easy-mc-form-1-EMAIL" class="EMAIL-label yikes-mailchimp-field-required ">
<!-- dictate label visibility -->
<span class="EMAIL-label">
Email Address </span>
<!-- Description Above -->
<input id="yikes-easy-mc-form-1-EMAIL" name="EMAIL" placeholder="" class="yikes-easy-mc-email " required="required" type="email" value="">
<!-- Description Below -->
</label>
<!-- Honeypot Trap -->
<input type="hidden" name="yikes-mailchimp-honeypot" id="yikes-mailchimp-honeypot-1" value="">
<!-- List ID -->
<input type="hidden" name="yikes-mailchimp-associated-list-id" id="yikes-mailchimp-associated-list-id-1" value="24b1f473e5">
<!-- The form that is being submitted! Used to display error/success messages above the correct form -->
<input type="hidden" name="yikes-mailchimp-submitted-form" id="yikes-mailchimp-submitted-form-1" value="1">
<!-- Submit Button -->
<button type="submit" class="yikes-easy-mc-submit-button yikes-easy-mc-submit-button-1 btn btn-primary "> <span class="yikes-mailchimp-submit-button-span-text">Subscribe me</span></button> <!-- Nonce Security Check -->
<input type="hidden" id="yikes_easy_mc_new_subscriber_1" name="yikes_easy_mc_new_subscriber" value="7bbf53c7a4">
<input type="hidden" name="_wp_http_referer" value="/sre-weekly-issue-115/" />
</form>
<!-- Mailchimp Form generated by Easy Forms for Mailchimp v6.5.5 (https://wordpress.org/plugins/yikes-inc-easy-mailchimp-extender/) -->
</section>
</section><section id="text-8" class="widget-sidebar frontier-widget widget_text"><h2 class="widget-title">RSS</h2> <div class="textwidget"><a href="http://sreweekly.com/feed/"> Subscribe with RSS</a></div>
</section><section id="text-6" class="widget-sidebar frontier-widget widget_text"><h2 class="widget-title">Mastodon</h2> <div class="textwidget"><p><a href="https://social.linux.pizza/@SREWeekly"> Subscribe on Mastodon</a></p>
</div>
</section><section id="search-2" class="widget-sidebar frontier-widget widget_search"><h2 class="widget-title">Search Issues</h2><form role="search" method="get" class="search-form" action="https://sreweekly.com/">
<label>
<span class="screen-reader-text">Search for:</span>
<input type="search" class="search-field" placeholder="Search &hellip;" value="" name="s" />
</label>
<input type="submit" class="search-submit" value="Search" />
</form></section>
</aside>
</div></div>
<div id="bottom-bar" class="cf" role="contentinfo">
<span id="bottom-bar-text">A production of Tinker Tinker Tinker, LLC</span>
<span id="theme-link"><a href="https://ronangelo.com/frontier/">Frontier Theme</a></span>
</div>
</div>
<script type="speculationrules">
{"prefetch":[{"source":"document","where":{"and":[{"href_matches":"/*"},{"not":{"href_matches":["/wp-*.php","/wp-admin/*","/wp-content/uploads/*","/wp-content/*","/wp-content/plugins/*","/wp-content/themes/frontier/*","/*\\?(.+)"]}},{"not":{"selector_matches":"a[rel~=\"nofollow\"]"}},{"not":{"selector_matches":".no-prefetch, .no-prefetch a"}}]},"eagerness":"conservative"}]}
</script>
<script type="text/javascript">
jQuery(document).ready(function($) {
$( '.menu-item-has-children' ).click(function(){
$( '.nav-main > .menu-item-has-children' ).not(this).removeClass( 'toggle-on' );
$(this).not().parents().removeClass( 'toggle-on' );
$(this).toggleClass( 'toggle-on' );
});
});
</script>
<script id="yikes-easy-mc-ajax-js-extra">
var yikes_mailchimp_ajax = {"ajax_url":"https://sreweekly.com/wp-admin/admin-ajax.php","page_data":"634","interest_group_checkbox_error":"This field is required.","preloader_url":"https://sreweekly.com/wp-content/plugins/yikes-inc-easy-mailchimp-extender/includes/images/ripple.svg","loading_dots":"https://sreweekly.com/wp-content/plugins/yikes-inc-easy-mailchimp-extender/includes/images/bars.svg","ajax_security_nonce":"97139b358b","feedback_message_placement":"before"};
//# sourceURL=yikes-easy-mc-ajax-js-extra
</script>
<script id="yikes-easy-mc-ajax-js" src="https://sreweekly.com/wp-content/plugins/yikes-inc-easy-mailchimp-extender/public/js/yikes-mc-ajax-forms.min.js?ver=6.5.5"></script>
<script id="form-submission-helpers-js-extra">
var form_submission_helpers = {"ajax_url":"https://sreweekly.com/wp-admin/admin-ajax.php","preloader_url":"https://sreweekly.com/wp-admin/images/wpspin_light.gif","countries_with_zip":{"US":"US","GB":"GB","CA":"CA","IE":"IE","CN":"CN","IN":"IN","AU":"AU","BR":"BR","MX":"MX","IT":"IT","NZ":"NZ","JP":"JP","FR":"FR","GR":"GR","DE":"DE","NL":"NL","PT":"PT","ES":"ES"},"page_data":"634"};
//# sourceURL=form-submission-helpers-js-extra
</script>
<script id="form-submission-helpers-js" src="https://sreweekly.com/wp-content/plugins/yikes-inc-easy-mailchimp-extender/public/js/form-submission-helpers.min.js?ver=6.5.5"></script>
</body>
</html>