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<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>Pulsar isolation · Apache Pulsar</title><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta name="generator" content="Docusaurus"/><meta name="description" content="In an organization, a Pulsar instance provides services to multiple teams. When organizing the resources across multiple teams, you want to make a suitable isolation plan to avoid the resource competition between different teams and applications and provide high-quality messaging service. In this case, you need to take resource isolation into consideration and weigh your intended actions against expected and unexpected consequences."/><meta name="docsearch:version" content="2.8.1"/><meta name="docsearch:language" content="en"/><meta property="og:title" content="Pulsar isolation · Apache Pulsar"/><meta property="og:type" content="website"/><meta property="og:url" content="https://pulsar.apache.org/"/><meta property="og:description" content="In an organization, a Pulsar instance provides services to multiple teams. When organizing the resources across multiple teams, you want to make a suitable isolation plan to avoid the resource competition between different teams and applications and provide high-quality messaging service. In this case, you need to take resource isolation into consideration and weigh your intended actions against expected and unexpected consequences."/><meta name="twitter:card" content="summary"/><meta name="twitter:image" content="https://pulsar.apache.org/img/pulsar.svg"/><link rel="shortcut icon" href="/img/pulsar.ico"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/atom-one-dark.min.css"/><link rel="alternate" type="application/atom+xml" href="https://pulsar.apache.org/blog/atom.xml" title="Apache Pulsar Blog ATOM Feed"/><link rel="alternate" type="application/rss+xml" href="https://pulsar.apache.org/blog/feed.xml" title="Apache Pulsar Blog RSS Feed"/><link rel="stylesheet" href="/css/code-blocks-buttons.css"/><script type="text/javascript" src="https://buttons.github.io/buttons.js"></script><script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/2.0.0/clipboard.min.js"></script><script type="text/javascript" src="/js/custom.js"></script><script src="/js/scrollSpy.js"></script><link rel="stylesheet" href="/css/main.css"/><script src="/js/codetabs.js"></script></head><body class="sideNavVisible separateOnPageNav"><div class="fixedHeaderContainer"><div class="headerWrapper wrapper"><header><a href="/en"><img class="logo" src="/img/pulsar.svg" alt="Apache Pulsar"/></a><a href="/en/versions"><h3>2.8.1</h3></a><div class="navigationWrapper navigationSlider"><nav class="slidingNav"><ul class="nav-site nav-site-internal"><li class="siteNavGroupActive"><a href="/docs/en/2.8.1/getting-started-standalone" target="_self">Docs</a></li><li class=""><a href="/en/download" target="_self">Download</a></li><li class="siteNavGroupActive"><a href="/docs/en/2.8.1/client-libraries" target="_self">Clients</a></li><li class=""><a href="#restapis" target="_self">REST APIs</a></li><li class=""><a href="#cli" target="_self">Cli</a></li><li class=""><a href="/blog/" target="_self">Blog</a></li><li class=""><a href="#community" target="_self">Community</a></li><li class=""><a href="#apache" target="_self">Apache</a></li><li class=""><a href="https://pulsar-next.staged.apache.org/" target="_self">New Website (Beta)</a></li><span><li><a id="languages-menu" href="#"><img class="languages-icon" src="/img/language.svg" alt="Languages icon"/>English</a><div id="languages-dropdown" class="hide"><ul id="languages-dropdown-items"><li><a href="/docs/ja/2.8.1/administration-isolation">日本語</a></li><li><a href="/docs/fr/2.8.1/administration-isolation">Français</a></li><li><a href="/docs/ko/2.8.1/administration-isolation">한국어</a></li><li><a href="/docs/zh-CN/2.8.1/administration-isolation">中文</a></li><li><a href="/docs/zh-TW/2.8.1/administration-isolation">繁體中文</a></li><li><a href="https://crowdin.com/project/apache-pulsar" target="_blank" rel="noreferrer noopener">Help Translate</a></li></ul></div></li><script>
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</script></nav></div><div class="container mainContainer docsContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/apache/pulsar/edit/master/site2/docs/administration-isolation.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 id="__docusaurus" class="postHeaderTitle">Pulsar isolation</h1></header><article><div><span><p>In an organization, a Pulsar instance provides services to multiple teams. When organizing the resources across multiple teams, you want to make a suitable isolation plan to avoid the resource competition between different teams and applications and provide high-quality messaging service. In this case, you need to take resource isolation into consideration and weigh your intended actions against expected and unexpected consequences.</p>
<p>To enforce resource isolation, you can use the Pulsar isolation policy, which allows you to allocate resources (<strong>broker</strong> and <strong>bookie</strong>) for the namespace.</p>
<h2><a class="anchor" aria-hidden="true" id="broker-isolation"></a><a href="#broker-isolation" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Broker isolation</h2>
<p>In Pulsar, when namespaces (more specifically, namespace bundles) are assigned dynamically to brokers, the namespace isolation policy limits the set of brokers that can be used for assignment. Before topics are assigned to brokers, you can set the namespace isolation policy with a primary or a secondary regex to select desired brokers.</p>
<p>You can set a namespace isolation policy for a cluster using one of the following methods.</p>
<div class="tabs"><div class="nav-tabs"><div id="tab-group-5354-tab-5355" class="nav-link active" data-group="group_5354" data-tab="tab-group-5354-content-5355">Admin CLI</div><div id="tab-group-5354-tab-5356" class="nav-link" data-group="group_5354" data-tab="tab-group-5354-content-5356">REST API</div><div id="tab-group-5354-tab-5357" class="nav-link" data-group="group_5354" data-tab="tab-group-5354-content-5357">Java admin API</div></div><div class="tab-content"><div id="tab-group-5354-content-5355" class="tab-pane active" data-group="group_5354" tabindex="-1"><div><span><pre><code class="hljs">pulsar-<span class="hljs-keyword">admin</span> ns-<span class="hljs-keyword">isolation</span>-<span class="hljs-keyword">policy</span> <span class="hljs-keyword">set</span> <span class="hljs-keyword">options</span><br /></code></pre>
<p>For more information about the command <code>pulsar-admin ns-isolation-policy set options</code>, see <a href="https://pulsar.apache.org/tools/pulsar-admin/">here</a>.</p>
<p><strong>Example</strong></p>
<pre><code class="hljs css language-shell">bin/pulsar-admin ns-isolation-policy set \<br />--auto-failover-policy-type min_available \<br />--auto-failover-policy-params min_limit=1,usage_threshold=80 \<br />--namespaces my-tenant/my-namespace \<br />--primary 10.193.216.* my-cluster policy-name<br /></code></pre>
</span></div></div><div id="tab-group-5354-content-5356" class="tab-pane" data-group="group_5354" tabindex="-1"><div><span><p><a href="https://pulsar.apache.org/admin-rest-api/?version=master&amp;apiversion=v2#operation/createNamespace">PUT /admin/v2/namespaces/{tenant}/{namespace}</a></p>
</span></div></div><div id="tab-group-5354-content-5357" class="tab-pane" data-group="group_5354" tabindex="-1"><div><span><p>For how to set namespace isolation policy using Java admin API, see <a href="https://github.com/apache/pulsar/blob/master/pulsar-client-admin/src/main/java/org/apache/pulsar/client/admin/internal/NamespacesImpl.java#L251">here</a>.</p>
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<h2><a class="anchor" aria-hidden="true" id="bookie-isolation"></a><a href="#bookie-isolation" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Bookie isolation</h2>
<p>A namespace can be isolated into user-defined groups of bookies, which guarantees all the data that belongs to the namespace is stored in desired bookies. The bookie affinity group uses the BookKeeper <a href="https://bookkeeper.apache.org/docs/latest/api/javadoc/org/apache/bookkeeper/client/EnsemblePlacementPolicy.html">rack-aware placement policy</a> and it is a way to feed rack information which is stored as JSON format in znode.</p>
<p>You can set a bookie affinity group using one of the following methods.</p>
<div class="tabs"><div class="nav-tabs"><div id="tab-group-5358-tab-5359" class="nav-link active" data-group="group_5358" data-tab="tab-group-5358-content-5359">Admin CLI</div><div id="tab-group-5358-tab-5360" class="nav-link" data-group="group_5358" data-tab="tab-group-5358-content-5360">REST API</div><div id="tab-group-5358-tab-5361" class="nav-link" data-group="group_5358" data-tab="tab-group-5358-content-5361">Java admin API</div></div><div class="tab-content"><div id="tab-group-5358-content-5359" class="tab-pane active" data-group="group_5358" tabindex="-1"><div><span><pre><code class="hljs"><span class="hljs-string">pulsar-admin </span><span class="hljs-string">namespaces </span><span class="hljs-built_in">set-bookie-affinity-group</span> <span class="hljs-string">options<br /></span></code></pre>
<p>For more information about the command <code>pulsar-admin namespaces set-bookie-affinity-group options</code>, see <a href="https://pulsar.apache.org/tools/pulsar-admin/">here</a>.</p>
<p><strong>Example</strong></p>
<pre><code class="hljs css language-shell">bin/pulsar-admin bookies set-bookie-rack \<br />--bookie 127.0.0.1:3181 \<br />--hostname 127.0.0.1:3181 \<br />--group group-bookie1 \<br />--rack rack1<br /><br />bin/pulsar-admin namespaces set-bookie-affinity-group public/default \<br />--primary-group group-bookie1<br /></code></pre>
</span></div></div><div id="tab-group-5358-content-5360" class="tab-pane" data-group="group_5358" tabindex="-1"><div><span><p><a href="https://pulsar.apache.org/admin-rest-api/?version=master&amp;apiversion=v2#operation/setBookieAffinityGroup">POST /admin/v2/namespaces/{tenant}/{namespace}/persistence/bookieAffinity</a></p>
</span></div></div><div id="tab-group-5358-content-5361" class="tab-pane" data-group="group_5358" tabindex="-1"><div><span><p>For how to set bookie affinity group for a namespace using Java admin API, see <a href="https://github.com/apache/pulsar/blob/master/pulsar-client-admin/src/main/java/org/apache/pulsar/client/admin/internal/NamespacesImpl.java#L1164">here</a>.</p>
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