Files
nexus/sreweekly/html/377-2023-06-18.html
2026-09-12 17:23:01 +08:00

458 lines
36 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.
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 #377 &#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 #377 Comments Feed" href="https://sreweekly.com/sre-weekly-issue-377/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-377%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-377%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="wp-block-heading-inline-css">
h1:where(.wp-block-heading).has-background,h2:where(.wp-block-heading).has-background,h3:where(.wp-block-heading).has-background,h4:where(.wp-block-heading).has-background,h5:where(.wp-block-heading).has-background,h6:where(.wp-block-heading).has-background{padding:1.25em 2.375em}h1.has-text-align-left[style*=writing-mode]:where([style*=vertical-lr]),h1.has-text-align-right[style*=writing-mode]:where([style*=vertical-rl]),h2.has-text-align-left[style*=writing-mode]:where([style*=vertical-lr]),h2.has-text-align-right[style*=writing-mode]:where([style*=vertical-rl]),h3.has-text-align-left[style*=writing-mode]:where([style*=vertical-lr]),h3.has-text-align-right[style*=writing-mode]:where([style*=vertical-rl]),h4.has-text-align-left[style*=writing-mode]:where([style*=vertical-lr]),h4.has-text-align-right[style*=writing-mode]:where([style*=vertical-rl]),h5.has-text-align-left[style*=writing-mode]:where([style*=vertical-lr]),h5.has-text-align-right[style*=writing-mode]:where([style*=vertical-rl]),h6.has-text-align-left[style*=writing-mode]:where([style*=vertical-lr]),h6.has-text-align-right[style*=writing-mode]:where([style*=vertical-rl]){rotate:180deg}
/*# sourceURL=https://sreweekly.com/wp-includes/blocks/heading/style.min.css */
</style>
<style id="wp-block-group-inline-css">
.wp-block-group{box-sizing:border-box}:where(.wp-block-group.wp-block-group-is-layout-constrained){position:relative}
/*# sourceURL=https://sreweekly.com/wp-includes/blocks/group/style.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/1336" /><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-377/" />
<link rel='shortlink' href='https://sreweekly.com/?p=1336' />
<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-1336 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-1336" class="single-view post-1336 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-377/">SRE Weekly Issue #377</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-377/">June 18, 2023</a>
</div>
</div>
<div class="entry-content cf" itemprop="text" >
<a href="https://sreweekly.com/sre-weekly-issue-377/" title="Permalink to SRE Weekly Issue #377" class="email_only">View on sreweekly.com</a>
<div class="sreweekly-sponsor-message" style="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;">
<h2 style="text-align: center;font-size: 80%;color: #909090;">A message from our sponsor, <a href="https://rootly.com/demo/?utm_source=sreweekly">Rootly</a>:</h2>
<p>Curious how companies like Figma, Tripadvisor, and 100s of others leverage Rootly to manage incidents in Slack and unlock instant best practices? Check out this lightning demo:<br>
<a href="https://www.loom.com/share/051c4be0425a436e888dc0c3690855ad">https://www.loom.com/share/051c4be0425a436e888dc0c3690855ad</a></p>
</div>
<h2 class="wp-block-heading">Articles</h2>
<div class="wp-block-group"><div class="wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow">
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.thestack.technology/us-east-1-aws-support-aws-outage/" target="_blank" rel="noopener">Why did AWS Support fail with US-EAST-1 again?</a></div>
<div class="sreweekly-description">
<p>AWS had a major Lambda outage in us-east-1, and it took out many customer systems and quite a few other AWS systems, including their support portal.</p>
  <small>The Stack</small></div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://medium.com/@bphellinger/how-i-went-from-operations-manager-to-site-reliability-engineer-in-6-months-c61999c75155" target="_blank" rel="noopener">How I went from Operations Manager to Site Reliability Engineer In 6 Months!</a></div>
<div class="sreweekly-description">
<p>This person had a fascinating path to SRE, starting out their career as a generator repair technician and transitioning through devops to SRE.</p>
<p>  <small>Brian Hellinger — Towards AWS</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://netflixtechblog.com/migrating-critical-traffic-at-scale-with-no-downtime-part-2-4b1c8c7155c1" target="_blank" rel="noopener">Migrating Critical Traffic At Scale with No Downtime — Part 2</a></div>
<div class="sreweekly-description">
<p>In part 1, they outlined how they replay real traffic to test a new system before deploying it. In this article, they build on that with three additional techniques: sticky canaries, A/B testing, and gradually shifting traffic to the new system in production.</p>
<p>&nbsp;&nbsp;<small>Shyam Gala, Javier Fernandez-Ivern, Anup Rokkam Pratap, and Devang Shah — Netflix</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://metrist.io/blog/the-data-behind-delayed-status-page-updates/" target="_blank" rel="noopener">The Data Behind Delayed Status Page Updates</a></div>
<div class="sreweekly-description">
<p>By comparing status page posting to their independent monitoring of services, Metrist is able to produce statistics about how long companies take to post to their status pages when they have an outage.</p>
<p>&nbsp;&nbsp;<small>Jeff Martens — Metrist</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://surfingcomplexity.blog/2023/06/11/when-theres-no-plan-for-this-scenario-youve-got-to-improvise/" target="_blank" rel="noopener">When there’s no plan for this scenario, you’ve got to improvise</a></div>
<div class="sreweekly-description">
<p>Improvising during an incident isn&#8217;t just a one-off occurrence, and we should plan for it.</p>
<p>&nbsp;&nbsp;<small>Lorin Hochstein — Surfing Complexity</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://status.heroku.com/incidents/2558" target="_blank" rel="noopener">Heroku Incident 2558 Followup</a></div>
<div class="sreweekly-description">
<p>A foreign key column had a smaller integer data type than the key that it referenced, and it failed when the referenced key went too high.</p>
<p>&nbsp;&nbsp;<small>Heroku</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://ably.com/blog/chat-app-architecture" target="_blank" rel="noopener">Scalable chat app architecture: How to get it right the first time</a></div>
<div class="sreweekly-description">
<blockquote>
<p>Here, we’ll look at the key considerations you need to make when it comes to the architecture of your chat app, the structure and components of that architecture, and some of the technology options that can help support you in building a reliable chat experience.</p>
</blockquote>
<p>&nbsp;&nbsp;<small>Ably</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://admiralcloudberg.medium.com/a-watery-surprise-the-crash-of-national-airlines-flight-193-d1c493ee9b1f" target="_blank" rel="noopener">A Watery Surprise: The crash of National Airlines flight 193</a></div>
<div class="sreweekly-description">
<p>A departure from the normal air traffic control procedure allowed the pilots to lose situational awareness. A commonly-held myth about flotation equipment contributed to three deaths in a quite survivable accident.</p>
<p>&nbsp;&nbsp;<small>Admiral Cloudberg</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://medium.com/adevinta-tech-blog/its-not-always-dns-unless-it-is-16858df17d3f" target="_blank" rel="noopener">It’s not always DNS — unless it is</a></div>
<div class="sreweekly-description">
<p>They kept finding what they <em>thought</em> was the problem, and their fixes helped, but the problem kept coming back.</p>
<p>&nbsp;&nbsp;<small>Tanat Paul Lokejaroenlarb — Adevinta</small></p>
</div>
</div>
</div></div>
</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-377/" />
</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":"1336","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":"1336"};
//# 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>