Deploy website - based on 1d0911496a

2025-10-16 12:35:40 +00:00 · 2022-01-29 14:11:22 +00:00 · 2022-01-29 14:11:22 +00:00 · ede4834222
commit ede4834222
parent 4a2d5242e2
80 changed files with 159 additions and 159 deletions
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@ -7,13 +7,13 @@
 <link rel="alternate" type="application/rss+xml" href="/blog/rss.xml" title="foomo project docs RSS Feed">
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@ -7,13 +7,13 @@
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 <link rel="search" type="application/opensearchdescription+xml" title="foomo project docs" href="/opensearch.xml"><title data-react-helmet="true">Archive | foomo project docs</title><meta data-react-helmet="true" property="og:title" content="Archive | foomo project docs"><meta data-react-helmet="true" name="twitter:card" content="summary_large_image"><meta data-react-helmet="true" name="description" content="Archive"><meta data-react-helmet="true" property="og:description" content="Archive"><meta data-react-helmet="true" property="og:url" content="https://www.foomo.org/blog/archive"><meta data-react-helmet="true" name="docsearch:language" content="en"><meta data-react-helmet="true" name="docsearch:docusaurus_tag" content="default"><link data-react-helmet="true" rel="icon" href="/img/favicon.ico"><link data-react-helmet="true" rel="canonical" href="https://www.foomo.org/blog/archive"><link data-react-helmet="true" rel="alternate" href="https://www.foomo.org/blog/archive" hreflang="en"><link data-react-helmet="true" rel="alternate" href="https://www.foomo.org/blog/archive" hreflang="x-default"><link data-react-helmet="true" rel="preconnect" href="https://SUATUVZDDM-dsn.algolia.net" crossorigin="anonymous"><link rel="stylesheet" href="/assets/css/styles.47738ace.css">
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 <div><a href="#" class="skipToContent_OuoZ">Skip to main content</a></div><nav class="navbar navbar--fixed-top"><div class="navbar__inner"><div class="navbar__items"><button aria-label="Navigation bar toggle" class="navbar__toggle clean-btn" type="button" tabindex="0"><svg width="30" height="30" viewBox="0 0 30 30" aria-hidden="true"><path stroke="currentColor" stroke-linecap="round" stroke-miterlimit="10" stroke-width="2" d="M4 7h22M4 15h22M4 23h22"></path></svg></button><a class="navbar__brand" href="/"><b class="navbar__title">foomo</b></a><a class="navbar__item navbar__link" href="/docs/general/intro">General</a><a class="navbar__item navbar__link" href="/docs/frontend/intro">Frontend</a><a class="navbar__item navbar__link" href="/docs/backend/intro">Backend</a><a class="navbar__item navbar__link" href="/docs/devops/intro">DevOps</a><a class="navbar__item navbar__link" href="/docs/project-management/intro">PM</a><a class="navbar__item navbar__link" href="/docs/projects/intro">Projects</a></div><div class="navbar__items navbar__items--right"><a aria-current="page" class="navbar__item navbar__link navbar__link--active" href="/blog">Blog</a><div class="searchBox_Utm0"><button type="button" class="DocSearch DocSearch-Button" aria-label="Search"><span class="DocSearch-Button-Container"><svg width="20" height="20" class="DocSearch-Search-Icon" viewBox="0 0 20 20"><path d="M14.386 14.386l4.0877 4.0877-4.0877-4.0877c-2.9418 2.9419-7.7115 2.9419-10.6533 0-2.9419-2.9418-2.9419-7.7115 0-10.6533 2.9418-2.9419 7.7115-2.9419 10.6533 0 2.9419 2.9418 2.9419 7.7115 0 10.6533z" stroke="currentColor" fill="none" fill-rule="evenodd" stroke-linecap="round" stroke-linejoin="round"></path></svg><span class="DocSearch-Button-Placeholder">Search</span></span><span class="DocSearch-Button-Keys"></span></button></div></div></div><div role="presentation" class="navbar-sidebar__backdrop"></div></nav><div class="main-wrapper"><header class="hero hero--primary"><div class="container"><h1 class="hero__title">Archive</h1><p class="hero__subtitle">Archive</p></div></header><main><section class="margin-vert--lg"><div class="container"><div class="row"><div class="col col--4 margin-vert--lg"><h3>2021</h3><ul><li><a href="/blog/welcome-back-2021">November 12, 2021<!-- --> - <!-- -->Relaunching foomo.org</a></li></ul></div><div class="col col--4 margin-vert--lg"><h3>2022</h3><ul><li><a href="/blog/prometheus-cardinality-issues">January 25, 2022<!-- --> - <!-- -->Prometheus Is Out Of Memory. Again.</a></li><li><a href="/blog/searching-for-search-engines">January 20, 2022<!-- --> - <!-- -->The never ending search a search engine 2022-01 edition</a></li><li><a href="/blog/impact-of-3rd-party-scripts-on-performance">January 20, 2022<!-- --> - <!-- -->Impact of 3rd party scripts on performance</a></li><li><a href="/blog/debugging-go-map-races-in-k8s">January 19, 2022<!-- --> - <!-- -->debugging Go map races in k8s</a></li></ul></div></div></div></section></main></div><footer class="footer"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">legal</div><ul class="footer__items"><li class="footer__item"><a class="footer__link-item" href="/etc/imprint">Imprint</a></li></ul></div></div><div class="footer__bottom text--center"><div class="footer__copyright">© 2022 bestbytes</div></div></div></footer></div>
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@ -7,7 +7,7 @@
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 <link rel="search" type="application/opensearchdescription+xml" title="foomo project docs" href="/opensearch.xml"><title data-react-helmet="true">Prometheus Is Out Of Memory. Again. | foomo project docs</title><meta data-react-helmet="true" name="twitter:card" content="summary_large_image"><meta data-react-helmet="true" property="og:url" content="https://www.foomo.org/blog/prometheus-cardinality-issues"><meta data-react-helmet="true" name="docsearch:language" content="en"><meta data-react-helmet="true" name="docsearch:docusaurus_tag" content="default"><meta data-react-helmet="true" property="og:title" content="Prometheus Is Out Of Memory. Again. | foomo project docs"><meta data-react-helmet="true" name="description" content="The Annoyance"><meta data-react-helmet="true" property="og:description" content="The Annoyance"><meta data-react-helmet="true" property="og:type" content="article"><meta data-react-helmet="true" property="article:published_time" content="2022-01-25T00:00:00.000Z"><meta data-react-helmet="true" property="article:author" content="https://github.com/smartinov"><meta data-react-helmet="true" property="article:tag" content="prometheus,cardinality,devops,ops,k8s,oom,memory"><link data-react-helmet="true" rel="icon" href="/img/favicon.ico"><link data-react-helmet="true" rel="canonical" href="https://www.foomo.org/blog/prometheus-cardinality-issues"><link data-react-helmet="true" rel="alternate" href="https://www.foomo.org/blog/prometheus-cardinality-issues" hreflang="en"><link data-react-helmet="true" rel="alternate" href="https://www.foomo.org/blog/prometheus-cardinality-issues" hreflang="x-default"><link data-react-helmet="true" rel="preconnect" href="https://SUATUVZDDM-dsn.algolia.net" crossorigin="anonymous"><link rel="stylesheet" href="/assets/css/styles.47738ace.css">
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@ -32,7 +32,7 @@ Or to quote user <a href="https://www.reddit.com/user/naveen17797/" target="_bla
 Since we can&#x27;t get prometheus up and running to utilize PromQL to detect the potential issues, we have to find another way to detect high cardinality.
 Therefore, we might want to get our hands dirty with some <code>kubectl exec -it -n monitoring pods/prometheus-prometheus-kube-prometheus-prometheus-0 -- sh</code>, and run the prometheus <code>tsdb</code> analysis too.</p><div class="codeBlockContainer_J+bg language-bash theme-code-block"><div class="codeBlockContent_csEI bash"><pre tabindex="0" class="prism-code language-bash codeBlock_rtdJ thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#bfc7d5"><span class="token plain">/prometheus $ promtool tsdb analyze </span><span class="token builtin class-name" style="color:rgb(255, 203, 107)">.</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>Which produced the result.</p><div class="codeBlockContainer_J+bg language-text theme-code-block"><div class="codeBlockContent_csEI text"><pre tabindex="0" class="prism-code language-text codeBlock_rtdJ thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Block ID: 01FT8E8YY4THHZ2S7C3G04GJMG</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Duration: 1h59m59.997s</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Series: 564171</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Label names: 285</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Postings (unique label pairs): 21139</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Postings entries (total label pairs): 6423664</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt;</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; ...</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt;</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Highest cardinality metric names:</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; 11340 haproxy_server_http_responses_total</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; ...</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>We see the potential issue here, where the <code>haproxy_server_http_responses_total</code> metric is having a super-high cardinality which is growing.
 We need to deal with it, so that our prometheus instance can breathe again. In this particular case, the solution was updating the haproxy.</p><p>... or burn it, up to you.</p><p><img alt="Flame Thrower" src="/assets/images/flame-thrower-56bcf89132356ff53c03ca029d9d0746.webp"></p><h2 class="anchor anchorWithStickyNavbar_y2LR" id="the-further-reading">The Further Reading<a class="hash-link" href="#the-further-reading" title="Direct link to heading"></a></h2><ol><li><a href="https://github.com/prometheus/prometheus/blob/main/tsdb/docs/format/wal.md" target="_blank" rel="noopener noreferrer">WAL Definition</a></li><li><a href="https://ganeshvernekar.com/blog/prometheus-tsdb-wal-and-checkpoint/" target="_blank" rel="noopener noreferrer">WAL &amp; Checkpoints</a></li><li><a href="https://www.robustperception.io/using-tsdb-analyze-to-investigate-churn-and-cardinality" target="_blank" rel="noopener noreferrer">Using TSDB</a></li><li><a href="https://www.robustperception.io/which-are-my-biggest-metrics" target="_blank" rel="noopener noreferrer">Biggest Metrics</a></li><li><a href="https://www.robustperception.io/cardinality-is-key" target="_blank" rel="noopener noreferrer">Cardinality</a></li></ol></div><footer class="row docusaurus-mt-lg blogPostDetailsFull_xD8n"><div class="col"><b>Tags:</b><ul class="tags_NBRY padding--none margin-left--sm"><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/prometheus">prometheus</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/cardinality">cardinality</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/devops">devops</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/ops">ops</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/k-8-s">k8s</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/oom">oom</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/memory">memory</a></li></ul></div><div class="col margin-top--sm"><a href="https://github.com/foomo/foomo-docs/tree/main/foomo/blog/2022-01-25-prometheus-cardinality-issues/index.mdx" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_mS5F" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Blog post page navigation"><div class="pagination-nav__item"></div><div class="pagination-nav__item pagination-nav__item--next"><a class="pagination-nav__link" href="/blog/searching-for-search-engines"><div class="pagination-nav__sublabel">Older Post</div><div class="pagination-nav__label">The never ending search a search engine 2022-01 edition<!-- --> »</div></a></div></nav></main><div class="col col--2"><div class="tableOfContents_vrFS thin-scrollbar"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#the-annoyance" class="table-of-contents__link toc-highlight">The Annoyance</a></li><li><a href="#the-problem" class="table-of-contents__link toc-highlight">The Problem</a></li><li><a href="#the-source" class="table-of-contents__link toc-highlight">The Source</a></li><li><a href="#the-solution" class="table-of-contents__link toc-highlight">The Solution</a></li><li><a href="#the-further-reading" class="table-of-contents__link toc-highlight">The Further Reading</a></li></ul></div></div></div></div></div><footer class="footer"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">legal</div><ul class="footer__items"><li class="footer__item"><a class="footer__link-item" href="/etc/imprint">Imprint</a></li></ul></div></div><div class="footer__bottom text--center"><div class="footer__copyright">© 2022 bestbytes</div></div></div></footer></div>
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@ -7,7 +7,7 @@
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 <link rel="search" type="application/opensearchdescription+xml" title="foomo project docs" href="/opensearch.xml"><title data-react-helmet="true">One post tagged with &quot;cardinality&quot; | foomo project docs</title><meta data-react-helmet="true" property="og:title" content="One post tagged with &quot;cardinality&quot; | foomo project docs"><meta data-react-helmet="true" name="twitter:card" content="summary_large_image"><meta data-react-helmet="true" property="og:url" content="https://www.foomo.org/blog/tags/cardinality"><meta data-react-helmet="true" name="docsearch:language" content="en"><meta data-react-helmet="true" name="docsearch:docusaurus_tag" content="blog_tags_posts"><link data-react-helmet="true" rel="icon" href="/img/favicon.ico"><link data-react-helmet="true" rel="canonical" href="https://www.foomo.org/blog/tags/cardinality"><link data-react-helmet="true" rel="alternate" href="https://www.foomo.org/blog/tags/cardinality" hreflang="en"><link data-react-helmet="true" rel="alternate" href="https://www.foomo.org/blog/tags/cardinality" hreflang="x-default"><link data-react-helmet="true" rel="preconnect" href="https://SUATUVZDDM-dsn.algolia.net" crossorigin="anonymous"><link rel="stylesheet" href="/assets/css/styles.47738ace.css">
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@ -32,7 +32,7 @@ Or to quote user <a href="https://www.reddit.com/user/naveen17797/" target="_bla
 Since we can&#x27;t get prometheus up and running to utilize PromQL to detect the potential issues, we have to find another way to detect high cardinality.
 Therefore, we might want to get our hands dirty with some <code>kubectl exec -it -n monitoring pods/prometheus-prometheus-kube-prometheus-prometheus-0 -- sh</code>, and run the prometheus <code>tsdb</code> analysis too.</p><div class="codeBlockContainer_J+bg language-bash theme-code-block"><div class="codeBlockContent_csEI bash"><pre tabindex="0" class="prism-code language-bash codeBlock_rtdJ thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#bfc7d5"><span class="token plain">/prometheus $ promtool tsdb analyze </span><span class="token builtin class-name" style="color:rgb(255, 203, 107)">.</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>Which produced the result.</p><div class="codeBlockContainer_J+bg language-text theme-code-block"><div class="codeBlockContent_csEI text"><pre tabindex="0" class="prism-code language-text codeBlock_rtdJ thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Block ID: 01FT8E8YY4THHZ2S7C3G04GJMG</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Duration: 1h59m59.997s</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Series: 564171</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Label names: 285</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Postings (unique label pairs): 21139</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Postings entries (total label pairs): 6423664</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt;</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; ...</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt;</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Highest cardinality metric names:</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; 11340 haproxy_server_http_responses_total</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; ...</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>We see the potential issue here, where the <code>haproxy_server_http_responses_total</code> metric is having a super-high cardinality which is growing.
 We need to deal with it, so that our prometheus instance can breathe again. In this particular case, the solution was updating the haproxy.</p><p>... or burn it, up to you.</p><p><img alt="Flame Thrower" src="/assets/images/flame-thrower-56bcf89132356ff53c03ca029d9d0746.webp"></p><h2 class="anchor anchorWithStickyNavbar_y2LR" id="the-further-reading">The Further Reading<a class="hash-link" href="#the-further-reading" title="Direct link to heading"></a></h2><ol><li><a href="https://github.com/prometheus/prometheus/blob/main/tsdb/docs/format/wal.md" target="_blank" rel="noopener noreferrer">WAL Definition</a></li><li><a href="https://ganeshvernekar.com/blog/prometheus-tsdb-wal-and-checkpoint/" target="_blank" rel="noopener noreferrer">WAL &amp; Checkpoints</a></li><li><a href="https://www.robustperception.io/using-tsdb-analyze-to-investigate-churn-and-cardinality" target="_blank" rel="noopener noreferrer">Using TSDB</a></li><li><a href="https://www.robustperception.io/which-are-my-biggest-metrics" target="_blank" rel="noopener noreferrer">Biggest Metrics</a></li><li><a href="https://www.robustperception.io/cardinality-is-key" target="_blank" rel="noopener noreferrer">Cardinality</a></li></ol></div><footer class="row docusaurus-mt-lg"><div class="col col--9"><b>Tags:</b><ul class="tags_NBRY padding--none margin-left--sm"><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/prometheus">prometheus</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/cardinality">cardinality</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/devops">devops</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/ops">ops</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/k-8-s">k8s</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/oom">oom</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/memory">memory</a></li></ul></div><div class="col text--right col--3"><a aria-label="Read more about Prometheus Is Out Of Memory. Again." href="/blog/prometheus-cardinality-issues"><b>Read More</b></a></div></footer></article></main></div></div></div><footer class="footer"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">legal</div><ul class="footer__items"><li class="footer__item"><a class="footer__link-item" href="/etc/imprint">Imprint</a></li></ul></div></div><div class="footer__bottom text--center"><div class="footer__copyright">© 2022 bestbytes</div></div></div></footer></div>
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@ -7,7 +7,7 @@
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 <link rel="search" type="application/opensearchdescription+xml" title="foomo project docs" href="/opensearch.xml"><title data-react-helmet="true">One post tagged with &quot;devops&quot; | foomo project docs</title><meta data-react-helmet="true" property="og:title" content="One post tagged with &quot;devops&quot; | foomo project docs"><meta data-react-helmet="true" name="twitter:card" content="summary_large_image"><meta data-react-helmet="true" property="og:url" content="https://www.foomo.org/blog/tags/devops"><meta data-react-helmet="true" name="docsearch:language" content="en"><meta data-react-helmet="true" name="docsearch:docusaurus_tag" content="blog_tags_posts"><link data-react-helmet="true" rel="icon" href="/img/favicon.ico"><link data-react-helmet="true" rel="canonical" href="https://www.foomo.org/blog/tags/devops"><link data-react-helmet="true" rel="alternate" href="https://www.foomo.org/blog/tags/devops" hreflang="en"><link data-react-helmet="true" rel="alternate" href="https://www.foomo.org/blog/tags/devops" hreflang="x-default"><link data-react-helmet="true" rel="preconnect" href="https://SUATUVZDDM-dsn.algolia.net" crossorigin="anonymous"><link rel="stylesheet" href="/assets/css/styles.47738ace.css">
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@ -32,7 +32,7 @@ Or to quote user <a href="https://www.reddit.com/user/naveen17797/" target="_bla
 Since we can&#x27;t get prometheus up and running to utilize PromQL to detect the potential issues, we have to find another way to detect high cardinality.
 Therefore, we might want to get our hands dirty with some <code>kubectl exec -it -n monitoring pods/prometheus-prometheus-kube-prometheus-prometheus-0 -- sh</code>, and run the prometheus <code>tsdb</code> analysis too.</p><div class="codeBlockContainer_J+bg language-bash theme-code-block"><div class="codeBlockContent_csEI bash"><pre tabindex="0" class="prism-code language-bash codeBlock_rtdJ thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#bfc7d5"><span class="token plain">/prometheus $ promtool tsdb analyze </span><span class="token builtin class-name" style="color:rgb(255, 203, 107)">.</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>Which produced the result.</p><div class="codeBlockContainer_J+bg language-text theme-code-block"><div class="codeBlockContent_csEI text"><pre tabindex="0" class="prism-code language-text codeBlock_rtdJ thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Block ID: 01FT8E8YY4THHZ2S7C3G04GJMG</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Duration: 1h59m59.997s</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Series: 564171</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Label names: 285</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Postings (unique label pairs): 21139</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Postings entries (total label pairs): 6423664</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt;</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; ...</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt;</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Highest cardinality metric names:</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; 11340 haproxy_server_http_responses_total</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; ...</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>We see the potential issue here, where the <code>haproxy_server_http_responses_total</code> metric is having a super-high cardinality which is growing.
 We need to deal with it, so that our prometheus instance can breathe again. In this particular case, the solution was updating the haproxy.</p><p>... or burn it, up to you.</p><p><img alt="Flame Thrower" src="/assets/images/flame-thrower-56bcf89132356ff53c03ca029d9d0746.webp"></p><h2 class="anchor anchorWithStickyNavbar_y2LR" id="the-further-reading">The Further Reading<a class="hash-link" href="#the-further-reading" title="Direct link to heading"></a></h2><ol><li><a href="https://github.com/prometheus/prometheus/blob/main/tsdb/docs/format/wal.md" target="_blank" rel="noopener noreferrer">WAL Definition</a></li><li><a href="https://ganeshvernekar.com/blog/prometheus-tsdb-wal-and-checkpoint/" target="_blank" rel="noopener noreferrer">WAL &amp; Checkpoints</a></li><li><a href="https://www.robustperception.io/using-tsdb-analyze-to-investigate-churn-and-cardinality" target="_blank" rel="noopener noreferrer">Using TSDB</a></li><li><a href="https://www.robustperception.io/which-are-my-biggest-metrics" target="_blank" rel="noopener noreferrer">Biggest Metrics</a></li><li><a href="https://www.robustperception.io/cardinality-is-key" target="_blank" rel="noopener noreferrer">Cardinality</a></li></ol></div><footer class="row docusaurus-mt-lg"><div class="col col--9"><b>Tags:</b><ul class="tags_NBRY padding--none margin-left--sm"><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/prometheus">prometheus</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/cardinality">cardinality</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/devops">devops</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/ops">ops</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/k-8-s">k8s</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/oom">oom</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/memory">memory</a></li></ul></div><div class="col text--right col--3"><a aria-label="Read more about Prometheus Is Out Of Memory. Again." href="/blog/prometheus-cardinality-issues"><b>Read More</b></a></div></footer></article></main></div></div></div><footer class="footer"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">legal</div><ul class="footer__items"><li class="footer__item"><a class="footer__link-item" href="/etc/imprint">Imprint</a></li></ul></div></div><div class="footer__bottom text--center"><div class="footer__copyright">© 2022 bestbytes</div></div></div></footer></div>
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 <link rel="search" type="application/opensearchdescription+xml" title="foomo project docs" href="/opensearch.xml"><title data-react-helmet="true">One post tagged with &quot;k8s&quot; | foomo project docs</title><meta data-react-helmet="true" property="og:title" content="One post tagged with &quot;k8s&quot; | foomo project docs"><meta data-react-helmet="true" name="twitter:card" content="summary_large_image"><meta data-react-helmet="true" property="og:url" content="https://www.foomo.org/blog/tags/k-8-s"><meta data-react-helmet="true" name="docsearch:language" content="en"><meta data-react-helmet="true" name="docsearch:docusaurus_tag" content="blog_tags_posts"><link data-react-helmet="true" rel="icon" href="/img/favicon.ico"><link data-react-helmet="true" rel="canonical" href="https://www.foomo.org/blog/tags/k-8-s"><link data-react-helmet="true" rel="alternate" href="https://www.foomo.org/blog/tags/k-8-s" hreflang="en"><link data-react-helmet="true" rel="alternate" href="https://www.foomo.org/blog/tags/k-8-s" hreflang="x-default"><link data-react-helmet="true" rel="preconnect" href="https://SUATUVZDDM-dsn.algolia.net" crossorigin="anonymous"><link rel="stylesheet" href="/assets/css/styles.47738ace.css">
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@ -32,7 +32,7 @@ Or to quote user <a href="https://www.reddit.com/user/naveen17797/" target="_bla
 Since we can&#x27;t get prometheus up and running to utilize PromQL to detect the potential issues, we have to find another way to detect high cardinality.
 Therefore, we might want to get our hands dirty with some <code>kubectl exec -it -n monitoring pods/prometheus-prometheus-kube-prometheus-prometheus-0 -- sh</code>, and run the prometheus <code>tsdb</code> analysis too.</p><div class="codeBlockContainer_J+bg language-bash theme-code-block"><div class="codeBlockContent_csEI bash"><pre tabindex="0" class="prism-code language-bash codeBlock_rtdJ thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#bfc7d5"><span class="token plain">/prometheus $ promtool tsdb analyze </span><span class="token builtin class-name" style="color:rgb(255, 203, 107)">.</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>Which produced the result.</p><div class="codeBlockContainer_J+bg language-text theme-code-block"><div class="codeBlockContent_csEI text"><pre tabindex="0" class="prism-code language-text codeBlock_rtdJ thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Block ID: 01FT8E8YY4THHZ2S7C3G04GJMG</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Duration: 1h59m59.997s</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Series: 564171</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Label names: 285</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Postings (unique label pairs): 21139</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Postings entries (total label pairs): 6423664</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt;</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; ...</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt;</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Highest cardinality metric names:</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; 11340 haproxy_server_http_responses_total</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; ...</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>We see the potential issue here, where the <code>haproxy_server_http_responses_total</code> metric is having a super-high cardinality which is growing.
 We need to deal with it, so that our prometheus instance can breathe again. In this particular case, the solution was updating the haproxy.</p><p>... or burn it, up to you.</p><p><img alt="Flame Thrower" src="/assets/images/flame-thrower-56bcf89132356ff53c03ca029d9d0746.webp"></p><h2 class="anchor anchorWithStickyNavbar_y2LR" id="the-further-reading">The Further Reading<a class="hash-link" href="#the-further-reading" title="Direct link to heading"></a></h2><ol><li><a href="https://github.com/prometheus/prometheus/blob/main/tsdb/docs/format/wal.md" target="_blank" rel="noopener noreferrer">WAL Definition</a></li><li><a href="https://ganeshvernekar.com/blog/prometheus-tsdb-wal-and-checkpoint/" target="_blank" rel="noopener noreferrer">WAL &amp; Checkpoints</a></li><li><a href="https://www.robustperception.io/using-tsdb-analyze-to-investigate-churn-and-cardinality" target="_blank" rel="noopener noreferrer">Using TSDB</a></li><li><a href="https://www.robustperception.io/which-are-my-biggest-metrics" target="_blank" rel="noopener noreferrer">Biggest Metrics</a></li><li><a href="https://www.robustperception.io/cardinality-is-key" target="_blank" rel="noopener noreferrer">Cardinality</a></li></ol></div><footer class="row docusaurus-mt-lg"><div class="col col--9"><b>Tags:</b><ul class="tags_NBRY padding--none margin-left--sm"><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/prometheus">prometheus</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/cardinality">cardinality</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/devops">devops</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/ops">ops</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/k-8-s">k8s</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/oom">oom</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/memory">memory</a></li></ul></div><div class="col text--right col--3"><a aria-label="Read more about Prometheus Is Out Of Memory. Again." href="/blog/prometheus-cardinality-issues"><b>Read More</b></a></div></footer></article></main></div></div></div><footer class="footer"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">legal</div><ul class="footer__items"><li class="footer__item"><a class="footer__link-item" href="/etc/imprint">Imprint</a></li></ul></div></div><div class="footer__bottom text--center"><div class="footer__copyright">© 2022 bestbytes</div></div></div></footer></div>
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@ -7,7 +7,7 @@
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@ -32,7 +32,7 @@ Or to quote user <a href="https://www.reddit.com/user/naveen17797/" target="_bla
 Since we can&#x27;t get prometheus up and running to utilize PromQL to detect the potential issues, we have to find another way to detect high cardinality.
 Therefore, we might want to get our hands dirty with some <code>kubectl exec -it -n monitoring pods/prometheus-prometheus-kube-prometheus-prometheus-0 -- sh</code>, and run the prometheus <code>tsdb</code> analysis too.</p><div class="codeBlockContainer_J+bg language-bash theme-code-block"><div class="codeBlockContent_csEI bash"><pre tabindex="0" class="prism-code language-bash codeBlock_rtdJ thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#bfc7d5"><span class="token plain">/prometheus $ promtool tsdb analyze </span><span class="token builtin class-name" style="color:rgb(255, 203, 107)">.</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>Which produced the result.</p><div class="codeBlockContainer_J+bg language-text theme-code-block"><div class="codeBlockContent_csEI text"><pre tabindex="0" class="prism-code language-text codeBlock_rtdJ thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Block ID: 01FT8E8YY4THHZ2S7C3G04GJMG</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Duration: 1h59m59.997s</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Series: 564171</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Label names: 285</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Postings (unique label pairs): 21139</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Postings entries (total label pairs): 6423664</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt;</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; ...</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt;</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Highest cardinality metric names:</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; 11340 haproxy_server_http_responses_total</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; ...</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>We see the potential issue here, where the <code>haproxy_server_http_responses_total</code> metric is having a super-high cardinality which is growing.
 We need to deal with it, so that our prometheus instance can breathe again. In this particular case, the solution was updating the haproxy.</p><p>... or burn it, up to you.</p><p><img alt="Flame Thrower" src="/assets/images/flame-thrower-56bcf89132356ff53c03ca029d9d0746.webp"></p><h2 class="anchor anchorWithStickyNavbar_y2LR" id="the-further-reading">The Further Reading<a class="hash-link" href="#the-further-reading" title="Direct link to heading"></a></h2><ol><li><a href="https://github.com/prometheus/prometheus/blob/main/tsdb/docs/format/wal.md" target="_blank" rel="noopener noreferrer">WAL Definition</a></li><li><a href="https://ganeshvernekar.com/blog/prometheus-tsdb-wal-and-checkpoint/" target="_blank" rel="noopener noreferrer">WAL &amp; Checkpoints</a></li><li><a href="https://www.robustperception.io/using-tsdb-analyze-to-investigate-churn-and-cardinality" target="_blank" rel="noopener noreferrer">Using TSDB</a></li><li><a href="https://www.robustperception.io/which-are-my-biggest-metrics" target="_blank" rel="noopener noreferrer">Biggest Metrics</a></li><li><a href="https://www.robustperception.io/cardinality-is-key" target="_blank" rel="noopener noreferrer">Cardinality</a></li></ol></div><footer class="row docusaurus-mt-lg"><div class="col col--9"><b>Tags:</b><ul class="tags_NBRY padding--none margin-left--sm"><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/prometheus">prometheus</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/cardinality">cardinality</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/devops">devops</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/ops">ops</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/k-8-s">k8s</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/oom">oom</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/memory">memory</a></li></ul></div><div class="col text--right col--3"><a aria-label="Read more about Prometheus Is Out Of Memory. Again." href="/blog/prometheus-cardinality-issues"><b>Read More</b></a></div></footer></article></main></div></div></div><footer class="footer"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">legal</div><ul class="footer__items"><li class="footer__item"><a class="footer__link-item" href="/etc/imprint">Imprint</a></li></ul></div></div><div class="footer__bottom text--center"><div class="footer__copyright">© 2022 bestbytes</div></div></div></footer></div>
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@ -7,7 +7,7 @@
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@ -32,7 +32,7 @@ Or to quote user <a href="https://www.reddit.com/user/naveen17797/" target="_bla
 Since we can&#x27;t get prometheus up and running to utilize PromQL to detect the potential issues, we have to find another way to detect high cardinality.
 Therefore, we might want to get our hands dirty with some <code>kubectl exec -it -n monitoring pods/prometheus-prometheus-kube-prometheus-prometheus-0 -- sh</code>, and run the prometheus <code>tsdb</code> analysis too.</p><div class="codeBlockContainer_J+bg language-bash theme-code-block"><div class="codeBlockContent_csEI bash"><pre tabindex="0" class="prism-code language-bash codeBlock_rtdJ thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#bfc7d5"><span class="token plain">/prometheus $ promtool tsdb analyze </span><span class="token builtin class-name" style="color:rgb(255, 203, 107)">.</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>Which produced the result.</p><div class="codeBlockContainer_J+bg language-text theme-code-block"><div class="codeBlockContent_csEI text"><pre tabindex="0" class="prism-code language-text codeBlock_rtdJ thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Block ID: 01FT8E8YY4THHZ2S7C3G04GJMG</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Duration: 1h59m59.997s</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Series: 564171</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Label names: 285</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Postings (unique label pairs): 21139</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Postings entries (total label pairs): 6423664</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt;</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; ...</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt;</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Highest cardinality metric names:</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; 11340 haproxy_server_http_responses_total</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; ...</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>We see the potential issue here, where the <code>haproxy_server_http_responses_total</code> metric is having a super-high cardinality which is growing.
 We need to deal with it, so that our prometheus instance can breathe again. In this particular case, the solution was updating the haproxy.</p><p>... or burn it, up to you.</p><p><img alt="Flame Thrower" src="/assets/images/flame-thrower-56bcf89132356ff53c03ca029d9d0746.webp"></p><h2 class="anchor anchorWithStickyNavbar_y2LR" id="the-further-reading">The Further Reading<a class="hash-link" href="#the-further-reading" title="Direct link to heading"></a></h2><ol><li><a href="https://github.com/prometheus/prometheus/blob/main/tsdb/docs/format/wal.md" target="_blank" rel="noopener noreferrer">WAL Definition</a></li><li><a href="https://ganeshvernekar.com/blog/prometheus-tsdb-wal-and-checkpoint/" target="_blank" rel="noopener noreferrer">WAL &amp; Checkpoints</a></li><li><a href="https://www.robustperception.io/using-tsdb-analyze-to-investigate-churn-and-cardinality" target="_blank" rel="noopener noreferrer">Using TSDB</a></li><li><a href="https://www.robustperception.io/which-are-my-biggest-metrics" target="_blank" rel="noopener noreferrer">Biggest Metrics</a></li><li><a href="https://www.robustperception.io/cardinality-is-key" target="_blank" rel="noopener noreferrer">Cardinality</a></li></ol></div><footer class="row docusaurus-mt-lg"><div class="col col--9"><b>Tags:</b><ul class="tags_NBRY padding--none margin-left--sm"><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/prometheus">prometheus</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/cardinality">cardinality</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/devops">devops</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/ops">ops</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/k-8-s">k8s</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/oom">oom</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/memory">memory</a></li></ul></div><div class="col text--right col--3"><a aria-label="Read more about Prometheus Is Out Of Memory. Again." href="/blog/prometheus-cardinality-issues"><b>Read More</b></a></div></footer></article></main></div></div></div><footer class="footer"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">legal</div><ul class="footer__items"><li class="footer__item"><a class="footer__link-item" href="/etc/imprint">Imprint</a></li></ul></div></div><div class="footer__bottom text--center"><div class="footer__copyright">© 2022 bestbytes</div></div></div></footer></div>
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@ -32,7 +32,7 @@ Or to quote user <a href="https://www.reddit.com/user/naveen17797/" target="_bla
 Since we can&#x27;t get prometheus up and running to utilize PromQL to detect the potential issues, we have to find another way to detect high cardinality.
 Therefore, we might want to get our hands dirty with some <code>kubectl exec -it -n monitoring pods/prometheus-prometheus-kube-prometheus-prometheus-0 -- sh</code>, and run the prometheus <code>tsdb</code> analysis too.</p><div class="codeBlockContainer_J+bg language-bash theme-code-block"><div class="codeBlockContent_csEI bash"><pre tabindex="0" class="prism-code language-bash codeBlock_rtdJ thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#bfc7d5"><span class="token plain">/prometheus $ promtool tsdb analyze </span><span class="token builtin class-name" style="color:rgb(255, 203, 107)">.</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>Which produced the result.</p><div class="codeBlockContainer_J+bg language-text theme-code-block"><div class="codeBlockContent_csEI text"><pre tabindex="0" class="prism-code language-text codeBlock_rtdJ thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Block ID: 01FT8E8YY4THHZ2S7C3G04GJMG</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Duration: 1h59m59.997s</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Series: 564171</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Label names: 285</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Postings (unique label pairs): 21139</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Postings entries (total label pairs): 6423664</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt;</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; ...</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt;</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Highest cardinality metric names:</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; 11340 haproxy_server_http_responses_total</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; ...</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>We see the potential issue here, where the <code>haproxy_server_http_responses_total</code> metric is having a super-high cardinality which is growing.
 We need to deal with it, so that our prometheus instance can breathe again. In this particular case, the solution was updating the haproxy.</p><p>... or burn it, up to you.</p><p><img alt="Flame Thrower" src="/assets/images/flame-thrower-56bcf89132356ff53c03ca029d9d0746.webp"></p><h2 class="anchor anchorWithStickyNavbar_y2LR" id="the-further-reading">The Further Reading<a class="hash-link" href="#the-further-reading" title="Direct link to heading"></a></h2><ol><li><a href="https://github.com/prometheus/prometheus/blob/main/tsdb/docs/format/wal.md" target="_blank" rel="noopener noreferrer">WAL Definition</a></li><li><a href="https://ganeshvernekar.com/blog/prometheus-tsdb-wal-and-checkpoint/" target="_blank" rel="noopener noreferrer">WAL &amp; Checkpoints</a></li><li><a href="https://www.robustperception.io/using-tsdb-analyze-to-investigate-churn-and-cardinality" target="_blank" rel="noopener noreferrer">Using TSDB</a></li><li><a href="https://www.robustperception.io/which-are-my-biggest-metrics" target="_blank" rel="noopener noreferrer">Biggest Metrics</a></li><li><a href="https://www.robustperception.io/cardinality-is-key" target="_blank" rel="noopener noreferrer">Cardinality</a></li></ol></div><footer class="row docusaurus-mt-lg"><div class="col col--9"><b>Tags:</b><ul class="tags_NBRY padding--none margin-left--sm"><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/prometheus">prometheus</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/cardinality">cardinality</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/devops">devops</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/ops">ops</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/k-8-s">k8s</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/oom">oom</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/memory">memory</a></li></ul></div><div class="col text--right col--3"><a aria-label="Read more about Prometheus Is Out Of Memory. Again." href="/blog/prometheus-cardinality-issues"><b>Read More</b></a></div></footer></article></main></div></div></div><footer class="footer"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">legal</div><ul class="footer__items"><li class="footer__item"><a class="footer__link-item" href="/etc/imprint">Imprint</a></li></ul></div></div><div class="footer__bottom text--center"><div class="footer__copyright">© 2022 bestbytes</div></div></div></footer></div>
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@ -7,7 +7,7 @@
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@ -32,7 +32,7 @@ Or to quote user <a href="https://www.reddit.com/user/naveen17797/" target="_bla
 Since we can&#x27;t get prometheus up and running to utilize PromQL to detect the potential issues, we have to find another way to detect high cardinality.
 Therefore, we might want to get our hands dirty with some <code>kubectl exec -it -n monitoring pods/prometheus-prometheus-kube-prometheus-prometheus-0 -- sh</code>, and run the prometheus <code>tsdb</code> analysis too.</p><div class="codeBlockContainer_J+bg language-bash theme-code-block"><div class="codeBlockContent_csEI bash"><pre tabindex="0" class="prism-code language-bash codeBlock_rtdJ thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#bfc7d5"><span class="token plain">/prometheus $ promtool tsdb analyze </span><span class="token builtin class-name" style="color:rgb(255, 203, 107)">.</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>Which produced the result.</p><div class="codeBlockContainer_J+bg language-text theme-code-block"><div class="codeBlockContent_csEI text"><pre tabindex="0" class="prism-code language-text codeBlock_rtdJ thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Block ID: 01FT8E8YY4THHZ2S7C3G04GJMG</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Duration: 1h59m59.997s</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Series: 564171</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Label names: 285</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Postings (unique label pairs): 21139</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Postings entries (total label pairs): 6423664</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt;</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; ...</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt;</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; Highest cardinality metric names:</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; 11340 haproxy_server_http_responses_total</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">&gt; ...</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>We see the potential issue here, where the <code>haproxy_server_http_responses_total</code> metric is having a super-high cardinality which is growing.
 We need to deal with it, so that our prometheus instance can breathe again. In this particular case, the solution was updating the haproxy.</p><p>... or burn it, up to you.</p><p><img alt="Flame Thrower" src="/assets/images/flame-thrower-56bcf89132356ff53c03ca029d9d0746.webp"></p><h2 class="anchor anchorWithStickyNavbar_y2LR" id="the-further-reading">The Further Reading<a class="hash-link" href="#the-further-reading" title="Direct link to heading"></a></h2><ol><li><a href="https://github.com/prometheus/prometheus/blob/main/tsdb/docs/format/wal.md" target="_blank" rel="noopener noreferrer">WAL Definition</a></li><li><a href="https://ganeshvernekar.com/blog/prometheus-tsdb-wal-and-checkpoint/" target="_blank" rel="noopener noreferrer">WAL &amp; Checkpoints</a></li><li><a href="https://www.robustperception.io/using-tsdb-analyze-to-investigate-churn-and-cardinality" target="_blank" rel="noopener noreferrer">Using TSDB</a></li><li><a href="https://www.robustperception.io/which-are-my-biggest-metrics" target="_blank" rel="noopener noreferrer">Biggest Metrics</a></li><li><a href="https://www.robustperception.io/cardinality-is-key" target="_blank" rel="noopener noreferrer">Cardinality</a></li></ol></div><footer class="row docusaurus-mt-lg"><div class="col col--9"><b>Tags:</b><ul class="tags_NBRY padding--none margin-left--sm"><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/prometheus">prometheus</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/cardinality">cardinality</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/devops">devops</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/ops">ops</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/k-8-s">k8s</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/oom">oom</a></li><li class="tag_F03v"><a class="tag_WK-t tagRegular_LXbV" href="/blog/tags/memory">memory</a></li></ul></div><div class="col text--right col--3"><a aria-label="Read more about Prometheus Is Out Of Memory. Again." href="/blog/prometheus-cardinality-issues"><b>Read More</b></a></div></footer></article></main></div></div></div><footer class="footer"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">legal</div><ul class="footer__items"><li class="footer__item"><a class="footer__link-item" href="/etc/imprint">Imprint</a></li></ul></div></div><div class="footer__bottom text--center"><div class="footer__copyright">© 2022 bestbytes</div></div></div></footer></div>
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 </span></div></pre><div style="display:none"><div><button class="button button--lg button--secondary">load external go playground, with all it´s potentially evil cookies coming from https://goplay.tools</button></div></div></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/foomo/foomo-docs/tree/main/foomo/docs/backend/go-by-example/yaml-magic.mdx" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_mS5F" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_mt2f"></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages navigation"><div class="pagination-nav__item"><a class="pagination-nav__link" href="/docs/backend/go-by-example/ranging"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">ranging and looping</div></a></div><div class="pagination-nav__item pagination-nav__item--next"></div></nav></div></div></div></div></main></div></div><footer class="footer"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">legal</div><ul class="footer__items"><li class="footer__item"><a class="footer__link-item" href="/etc/imprint">Imprint</a></li></ul></div></div><div class="footer__bottom text--center"><div class="footer__copyright">© 2022 bestbytes</div></div></div></footer></div>
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 </span></div><div class="token-line" style="color:#9a86fd"><span class="token plain"></span><span class="token keyword" style="color:#ffcc99">let</span><span class="token plain"> foo</span><span class="token operator" style="color:#e09142">:</span><span class="token punctuation" style="color:#6c6783">{</span><span class="token punctuation" style="color:#6c6783">[</span><span class="token plain">index</span><span class="token operator" style="color:#e09142">:</span><span class="token builtin">string</span><span class="token punctuation" style="color:#6c6783">]</span><span class="token operator" style="color:#e09142">:</span><span class="token builtin">number</span><span class="token punctuation" style="color:#6c6783">}</span><span class="token plain"> </span><span class="token operator" style="color:#e09142">=</span><span class="token plain"> </span><span class="token punctuation" style="color:#6c6783">{</span><span class="token plain"></span></div><div class="token-line" style="color:#9a86fd"><span class="token plain">    foo</span><span class="token operator" style="color:#e09142">:</span><span class="token plain"> </span><span class="token number" style="color:#e09142">1</span><span class="token plain"></span></div><div class="token-line" style="color:#9a86fd"><span class="token plain"></span><span class="token punctuation" style="color:#6c6783">}</span><span class="token punctuation" style="color:#6c6783">;</span><span class="token plain"></span></div><div class="token-line" style="color:#9a86fd"><span class="token plain" style="display:inline-block">
 </span></div></pre><a href="https://www.typescriptlang.org/play?#code/FAGwpgLgBAZg9nAXAbwNoEsB2ATMAPRAZwgCcsBzAXUUwFcBbAIzBIF8oBeKZYKP2BIigBGYKwDcwIA" class="button button--primary">open in playground on www.typescriptlang.org</a></div><div class="codeBlockContainer_J+bg language-tsx theme-code-block"><div class="codeBlockContent_csEI tsx"><pre tabindex="0" class="prism-code language-tsx codeBlock_rtdJ thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#bfc7d5"><span class="token keyword" style="font-style:italic">let</span><span class="token plain"> foo</span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">index</span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token builtin" style="color:rgb(130, 170, 255)">string</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token builtin" style="color:rgb(130, 170, 255)">number</span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">=</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">    foo</span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">1</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/foomo/foomo-docs/tree/main/foomo/docs/frontend/typescript/objects.mdx" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_mS5F" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_mt2f"></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages navigation"><div class="pagination-nav__item"><a class="pagination-nav__link" href="/docs/frontend/performance"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Performance</div></a></div><div class="pagination-nav__item pagination-nav__item--next"><a class="pagination-nav__link" href="/docs/frontend/typescript/spreading"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Spreading</div></a></div></nav></div></div></div></div></main></div></div><footer class="footer"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">legal</div><ul class="footer__items"><li class="footer__item"><a class="footer__link-item" href="/etc/imprint">Imprint</a></li></ul></div></div><div class="footer__bottom text--center"><div class="footer__copyright">© 2022 bestbytes</div></div></div></footer></div>
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@ -167,7 +167,7 @@ If you have a deeply nested object or array, nested entities will still hold a r
  }
 }
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