Files
nexus/sreweekly/html/231-2020-08-10.html
2026-09-12 17:23:01 +08:00

416 lines
33 KiB
HTML
Raw Blame History

This file contains invisible Unicode characters
This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. 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 #231 &#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 #231 Comments Feed" href="https://sreweekly.com/sre-weekly-issue-231/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-231%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-231%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/924" /><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-231/" />
<link rel='shortlink' href='https://sreweekly.com/?p=924' />
<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-924 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-924" class="single-view post-924 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-231/">SRE Weekly Issue #231</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-231/">August 10, 2020</a>
</div>
</div>
<div class="entry-content cf" itemprop="text" >
<a href="https://sreweekly.com/sre-weekly-issue-231/" title="Permalink to SRE Weekly Issue #231" class="email_only">View on sreweekly.com</a>
<p>I have a special treat for you this week: 7 detailed incident reports! Just a note, I&#8217;ll be on vacation next week, so I&#8217;ll see you in two weeks on August 23.</p>
<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: 80%; color: #909090;">A message from our sponsor, StackHawk:</h2>
<p>Learn about StackHawk&#8217;s setup of Prometheus Metrics with SpringBoot &amp; GRPC Services.<br />
<a href="https://www.stackhawk.com/blog/prometheus-metrics-with-springboot-and-grpc-services?utm_source=SREWeekly">https://www.stackhawk.com/blog/prometheus-metrics-with-springboot-and-grpc-services?utm_source=SREWeekly</a></p>
</div>
<h2>Articles</h2>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.blameless.com/blog/improving-postmortems-paul-osman" target="_blank">Improving Postmortems from Chores to Masterclass with Paul Osman</a></div>
<div class="sreweekly-description">
<p>The lead SRE at Under Armour(!) has a ton of interesting things to share about how they do SRE. I love their approach to incident retrospectives that starts with 1:1 interviews with those involved.</p>
<p><small>Paul Osman — Under Armour (Blameless Summit)</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.openshift.com/blog/about-the-quay.io-outage-post-mortem" target="_blank">About the Quay.io Outage: Post Mortem</a></div>
<div class="sreweekly-description">
<p>A routine infrastructure maintenance had unintended consequences, saturating MySQL with excessive connections.</p>
<p><small>Daniel Messer — RedHat</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.mackinac.org/archives/2020/2020_midland_dam_failure.pdf" target="_blank">The 2020 Midland County Dam Failure</a></div>
<div class="sreweekly-description">
<p>This report details the complex factors that contributed to the failure of a dam in Michigan in May of this year.</p>
<p><small>Jason Hayes — Mackinac Center for Public Policy</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://status.heroku.com/incidents/2090" target="_blank">Heroku Incident #2090 Follow-up</a></div>
<div class="sreweekly-description">
<p>This incident involved a DNS failure in Heroku&#8217;s infrastrucure provider (presumably AWS).</p>
<p><small>Heroku</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://engineering.linkedin.com/blog/2020/learnings-from-a-recent-hadoop-incident" target="_blank">Theory vs. Practice: Learnings from a recent Hadoop incident</a></div>
<div class="sreweekly-description">
<p>This incident at LinkedIn impacted multiple internal customers with varying requirements for durability and latency, making recovery complex.</p>
<p><small>Sandhya Ramu and Vasanth Rajamani — LinkedIn</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://github.blog/2020-08-05-github-availability-report-july-2020/" target="_blank">GitHub Availability Report: July 2020</a></div>
<div class="sreweekly-description">
<p>This report includes a description of an incident involving Kubernetes pods and an impaired DNS service.</p>
<p><small>Keith Ballinger — GitHub</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.honeycomb.io/blog/incident-report-investigating-an-incident-thats-already-resolved/" target="_blank">Incident Report: Investigating an Incident That&#8217;s Already Resolved</a></div>
<div class="sreweekly-description">
<p>In this report, Honeycomb describes how they investigated an incident from the prior week that their monitoring had missed.</p>
<p><small>Martin Holman — Honeycomb</small></p>
</div>
</div>
<h2>Outages</h2>
<ul class="sreweekly-outages">
<li><a href="https://discord.statuspage.io/incidents/bnv0wbddzz2x">Discord</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">This one is notable because it involves a purported &#8220;noisy neighbor&#8221; situation in Google Cloud Platform.</li>
</ul>
</li>
<li><a href="https://status.slack.com//2020-07/7d32ad54b0703c47">Slack</a></li>
<li><a href="https://www.zdnet.com/article/canon-suffers-ransomware-attack-maze-claims-responsibility/">Canon</a></li>
<li><a href="https://gamerant.com/steam-servers-down-8-05/">Steam</a></li>
<li><a href="https://status.squarespace.com/incidents/v01tsmmwn39r">Some sites loading slowly</a></li>
<li><a href="https://appsstatus.indeed.com/components/5c7354b64e80f13cdc5bba83">Indeed</a></li>
<li><a href="https://status.fastly.com/incidents/d6ljy97shb0p">Fastly</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-231/" />
</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":"924","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":"924"};
//# 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>