<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>Managing Brokers · Apache Pulsar</title><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta name="generator" content="Docusaurus"/><meta name="description" content="&gt; **Important**"/><meta name="docsearch:version" content="2.9.1"/><meta name="docsearch:language" content="en"/><meta property="og:title" content="Managing Brokers · Apache Pulsar"/><meta property="og:type" content="website"/><meta property="og:url" content="https://pulsar.apache.org/"/><meta property="og:description" content="&gt; **Important**"/><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>2.9.1</h3></a><div class="navigationWrapper navigationSlider"><nav class="slidingNav"><ul class="nav-site nav-site-internal"><li class="siteNavGroupActive"><a href="/docs/en/2.9.1/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/2.9.1/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/2.9.1/admin-api-brokers">日本語</a></li><li><a href="/docs/fr/2.9.1/admin-api-brokers">Français</a></li><li><a href="/docs/ko/2.9.1/admin-api-brokers">한국어</a></li><li><a href="/docs/zh-CN/2.9.1/admin-api-brokers">中文</a></li><li><a href="/docs/zh-TW/2.9.1/admin-api-brokers">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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Kubernetes</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Concepts and Architecture</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/concepts-overview">Overview</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/concepts-messaging">Messaging</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/concepts-architecture-overview">Architecture</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/concepts-clients">Clients</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/concepts-replication">Geo Replication</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/concepts-multi-tenancy">Multi Tenancy</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/concepts-authentication">Authentication and Authorization</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/concepts-topic-compaction">Topic 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href="/docs/en/2.9.1/functions-overview">Overview</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/functions-runtime">Setup: Configure Functions runtime</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/functions-worker">Setup: Pulsar Functions Worker</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/functions-develop">How-to: Develop</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/functions-package">How-to: Package</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/functions-debug">How-to: Debug</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/functions-deploy">How-to: Deploy</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/functions-cli">Reference: CLI</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/window-functions-context">Window Functions: Context</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Pulsar IO</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/io-overview">Overview</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/io-quickstart">Get started</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/io-use">Use</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/io-debug">Debug</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/io-connectors">Built-in connector</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/io-cdc">CDC connector</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/io-develop">Develop</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/io-cli">CLI</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Pulsar SQL</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/sql-overview">Overview</a></li><li 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href="/docs/en/2.9.1/helm-prepare">Prepare</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/helm-install">Install</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/helm-deploy">Deployment</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/helm-upgrade">Upgrade</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/helm-tools">Required Tools</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Deployment</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/deploy-aws">Amazon Web Services</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/deploy-kubernetes">Kubernetes</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/deploy-bare-metal">Bare metal</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/deploy-bare-metal-multi-cluster">Bare metal multi-cluster</a></li><li class="navListItem"><a 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href="/docs/en/2.9.1/administration-upgrade">Upgrade</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/administration-isolation">Pulsar isolation</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Security</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/security-overview">Overview</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/security-tls-transport">Transport Encryption using TLS</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/security-tls-authentication">Authentication using TLS</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/security-tls-keystore">Using TLS with KeyStore configure</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/security-jwt">Authentication using JWT</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/security-athenz">Authentication using Athenz</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/security-kerberos">Authentication using Kerberos</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/security-oauth2">Authentication using OAuth 2.0 access tokens</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/security-authorization">Authorization and ACLs</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/security-encryption">End-to-End Encryption</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/security-extending">Extending</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/security-bouncy-castle">Bouncy Castle Providers</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Performance</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/performance-pulsar-perf">Pulsar Perf</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Client Libraries</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/client-libraries">Overview</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/client-libraries-java">Java</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/client-libraries-go">Go</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/client-libraries-python">Python</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/client-libraries-cpp">C++</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/client-libraries-node">Node.js</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/client-libraries-websocket">WebSocket</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/client-libraries-dotnet">C#</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Admin API</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/admin-api-overview">Overview</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/admin-api-clusters">Clusters</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/admin-api-tenants">Tenants</a></li><li class="navListItem navListItemActive"><a class="navItem" href="/docs/en/2.9.1/admin-api-brokers">Brokers</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/admin-api-namespaces">Namespaces</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/admin-api-permissions">Permissions</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/admin-api-topics">Topics</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/admin-api-functions">Functions</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/admin-api-packages">Packages</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Adaptors</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/adaptors-kafka">Kafka client wrapper</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/adaptors-spark">Apache Spark</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/adaptors-storm">Apache Storm</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Cookbooks</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/cookbooks-compaction">Topic compaction</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/cookbooks-deduplication">Message deduplication</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/cookbooks-non-persistent">Non-persistent messaging</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/cookbooks-retention-expiry">Message retention and expiry</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/cookbooks-encryption">Encryption</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/cookbooks-message-queue">Message queue</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/cookbooks-bookkeepermetadata">BookKeeper Ledger Metadata</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Development</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/develop-tools">Simulation tools</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/developing-binary-protocol">Binary protocol</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/develop-schema">Custom schema storage</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/develop-load-manager">Modular load manager</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Reference</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/reference-terminology">Terminology</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/reference-cli-tools">Pulsar CLI tools</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/reference-configuration">Pulsar configuration</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.9.1/reference-metrics">Pulsar Metrics</a></li></ul></div></div></section></div><script>
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<p><strong>Important</strong></p>
<p>This page only shows <strong>some frequently used operations</strong>.</p>
<ul>
<li><p>For the latest and complete information about <code>Pulsar admin</code>, including commands, flags, descriptions, and more, see <a href="https://pulsar.apache.org/tools/pulsar-admin/">Pulsar admin doc</a>.</p></li>
<li><p>For the latest and complete information about <code>REST API</code>, including parameters, responses, samples, and more, see <a href="https://pulsar.apache.org/admin-rest-api#/">REST</a>
 API doc.</p></li>
<li><p>For the latest and complete information about <code>Java admin API</code>, including classes, methods, descriptions, and more, see <a href="https://pulsar.apache.org/api/admin/2.9.0-SNAPSHOT/">Java admin API doc</a>.</p></li>
</ul>
</blockquote>
<p>Pulsar brokers consist of two components:</p>
<ol>
<li>An HTTP server exposing a <a href="https://pulsar.apache.org/admin-rest-api#/">REST</a>
 interface administration and <a href="/docs/en/2.9.1/reference-terminology#topic">topic</a> lookup.</li>
<li>A dispatcher that handles all Pulsar <a href="/docs/en/2.9.1/reference-terminology#message">message</a> transfers.</li>
</ol>
<p><a href="/docs/en/2.9.1/reference-terminology#broker">Brokers</a> can be managed via:</p>
<ul>
<li>The <code>brokers</code> command of the <a href="https://pulsar.apache.org/tools/pulsar-admin/"><code>pulsar-admin</code></a> tool</li>
<li>The <code>/admin/v2/brokers</code> endpoint of the admin <a href="https://pulsar.apache.org/admin-rest-api#/">REST</a>
 API</li>
<li>The <code>brokers</code> method of the <code>PulsarAdmin</code> object in the <a href="/docs/en/2.9.1/client-libraries-java">Java API</a></li>
</ul>
<p>In addition to being configurable when you start them up, brokers can also be <a href="#dynamic-broker-configuration">dynamically configured</a>.</p>
<blockquote>
<p>See the <a href="/docs/en/2.9.1/reference-configuration#broker">Configuration</a> page for a full listing of broker-specific configuration parameters.</p>
</blockquote>
<h2><a class="anchor" aria-hidden="true" id="brokers-resources"></a><a href="#brokers-resources" 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>Brokers resources</h2>
<h3><a class="anchor" aria-hidden="true" id="list-active-brokers"></a><a href="#list-active-brokers" 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>List active brokers</h3>
<p>Fetch all available active brokers that are serving traffic.</p>
<div class="tabs"><div class="nav-tabs"><div id="tab-group-2174-tab-2175" class="nav-link active" data-group="group_2174" data-tab="tab-group-2174-content-2175">pulsar-admin</div><div id="tab-group-2174-tab-2176" class="nav-link" data-group="group_2174" data-tab="tab-group-2174-content-2176">REST API</div><div id="tab-group-2174-tab-2177" class="nav-link" data-group="group_2174" data-tab="tab-group-2174-content-2177">JAVA</div></div><div class="tab-content"><div id="tab-group-2174-content-2175" class="tab-pane active" data-group="group_2174" tabindex="-1"><div><span><pre><code class="hljs css language-shell"><span class="hljs-meta">$</span><span class="bash"> pulsar-admin brokers list use</span><br /></code></pre>
<pre><code class="hljs"><span class="hljs-selector-tag">broker1</span><span class="hljs-selector-class">.use</span><span class="hljs-selector-class">.org</span><span class="hljs-selector-class">.com</span><span class="hljs-selector-pseudo">:8080</span><br /></code></pre>
</span></div></div><div id="tab-group-2174-content-2176" class="tab-pane" data-group="group_2174" tabindex="-1"><div><span><p><a href="https://pulsar.apache.org/admin-rest-api#operation/getActiveBrokers?version=2.9.1&amp;apiVersion=v2"><b>GET</b> <i>/admin/v2/brokers/:cluster</i></a>
</p>
</span></div></div><div id="tab-group-2174-content-2177" class="tab-pane" data-group="group_2174" tabindex="-1"><div><span><pre><code class="hljs css language-java">admin.brokers().getActiveBrokers(clusterName)<br /></code></pre>
</span></div></div></div></div>
<h3><a class="anchor" aria-hidden="true" id="get-the-information-of-the-leader-broker"></a><a href="#get-the-information-of-the-leader-broker" 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>Get the information of the leader broker</h3>
<p>Fetch the information of the leader broker, for example, the service url.</p>
<div class="tabs"><div class="nav-tabs"><div id="tab-group-2178-tab-2179" class="nav-link active" data-group="group_2178" data-tab="tab-group-2178-content-2179">pulsar-admin</div><div id="tab-group-2178-tab-2180" class="nav-link" data-group="group_2178" data-tab="tab-group-2178-content-2180">REST API</div><div id="tab-group-2178-tab-2181" class="nav-link" data-group="group_2178" data-tab="tab-group-2178-content-2181">JAVA</div></div><div class="tab-content"><div id="tab-group-2178-content-2179" class="tab-pane active" data-group="group_2178" tabindex="-1"><div><span><pre><code class="hljs css language-shell"><span class="hljs-meta">$</span><span class="bash"> pulsar-admin brokers leader-broker</span><br /></code></pre>
<pre><code class="hljs"><span class="hljs-constructor">BrokerInfo(<span class="hljs-params">serviceUrl</span>=<span class="hljs-params">broker1</span>.<span class="hljs-params">use</span>.<span class="hljs-params">org</span>.<span class="hljs-params">com</span>:8080)</span><br /></code></pre>
</span></div></div><div id="tab-group-2178-content-2180" class="tab-pane" data-group="group_2178" tabindex="-1"><div><span><p><a href="https://pulsar.apache.org/admin-rest-api#/admin/v2/brokers/leaderBroker?version=2.9.1&amp;apiVersion=v2"><b>GET</b> <i>/admin/v2/brokers/leaderBroker?version=2.9.1</i></a>
</p>
</span></div></div><div id="tab-group-2178-content-2181" class="tab-pane" data-group="group_2178" tabindex="-1"><div><span><pre><code class="hljs css language-java">admin.brokers().getLeaderBroker()<br /></code></pre>
<p>For the detail of the code above, see <a href="https://github.com/apache/pulsar/blob/master/pulsar-client-admin/src/main/java/org/apache/pulsar/client/admin/internal/BrokersImpl.java#L80">here</a></p>
</span></div></div></div></div>
<h4><a class="anchor" aria-hidden="true" id="list-of-namespaces-owned-by-a-given-broker"></a><a href="#list-of-namespaces-owned-by-a-given-broker" 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>list of namespaces owned by a given broker</h4>
<p>It finds all namespaces which are owned and served by a given broker.</p>
<div class="tabs"><div class="nav-tabs"><div id="tab-group-2182-tab-2183" class="nav-link active" data-group="group_2182" data-tab="tab-group-2182-content-2183">pulsar-admin</div><div id="tab-group-2182-tab-2184" class="nav-link" data-group="group_2182" data-tab="tab-group-2182-content-2184">REST API</div><div id="tab-group-2182-tab-2185" class="nav-link" data-group="group_2182" data-tab="tab-group-2182-content-2185">JAVA</div></div><div class="tab-content"><div id="tab-group-2182-content-2183" class="tab-pane active" data-group="group_2182" tabindex="-1"><div><span><pre><code class="hljs css language-shell"><span class="hljs-meta">$</span><span class="bash"> pulsar-admin brokers namespaces use \</span><br />  --url broker1.use.org.com:8080<br /></code></pre>
<pre><code class="hljs css language-json">{<br />  <span class="hljs-attr">"my-property/use/my-ns/0x00000000_0xffffffff"</span>: {<br />    <span class="hljs-attr">"broker_assignment"</span>: <span class="hljs-string">"shared"</span>,<br />    <span class="hljs-attr">"is_controlled"</span>: <span class="hljs-literal">false</span>,<br />    <span class="hljs-attr">"is_active"</span>: <span class="hljs-literal">true</span><br />  }<br />}<br /></code></pre>
</span></div></div><div id="tab-group-2182-content-2184" class="tab-pane" data-group="group_2182" tabindex="-1"><div><span><p><a href="https://pulsar.apache.org/admin-rest-api#operation/getOwnedNamespaes?version=2.9.1&amp;apiVersion=v2"><b>GET</b> <i>/admin/v2/brokers/:cluster/:broker/ownedNamespaces</i></a>
</p>
</span></div></div><div id="tab-group-2182-content-2185" class="tab-pane" data-group="group_2182" tabindex="-1"><div><span><pre><code class="hljs css language-java">admin.brokers().getOwnedNamespaces(cluster,brokerUrl);<br /></code></pre>
</span></div></div></div></div>
<h3><a class="anchor" aria-hidden="true" id="dynamic-broker-configuration"></a><a href="#dynamic-broker-configuration" 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>Dynamic broker configuration</h3>
<p>One way to configure a Pulsar <a href="/docs/en/2.9.1/reference-terminology#broker">broker</a> is to supply a <a href="/docs/en/2.9.1/reference-configuration#broker">configuration</a> when the broker is <a href="/docs/en/2.9.1/reference-cli-tools#pulsar-broker">started up</a>.</p>
<p>But since all broker configuration in Pulsar is stored in ZooKeeper, configuration values can also be dynamically updated <em>while the broker is running</em>. When you update broker configuration dynamically, ZooKeeper will notify the broker of the change and the broker will then override any existing configuration values.</p>
<ul>
<li>The <a href="/docs/en/2.9.1/reference-pulsar-admin#brokers"><code>brokers</code></a> command for the <a href="/docs/en/2.9.1/reference-pulsar-admin"><code>pulsar-admin</code></a> tool has a variety of subcommands that enable you to manipulate a broker's configuration dynamically, enabling you to <a href="#update-dynamic-configuration">update config values</a> and more.</li>
<li>In the Pulsar admin <a href="https://pulsar.apache.org/admin-rest-api#/">REST</a>
 API, dynamic configuration is managed through the <code>/admin/v2/brokers/configuration</code> endpoint.</li>
</ul>
<h3><a class="anchor" aria-hidden="true" id="update-dynamic-configuration"></a><a href="#update-dynamic-configuration" 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>Update dynamic configuration</h3>
<div class="tabs"><div class="nav-tabs"><div id="tab-group-2186-tab-2187" class="nav-link active" data-group="group_2186" data-tab="tab-group-2186-content-2187">pulsar-admin</div><div id="tab-group-2186-tab-2188" class="nav-link" data-group="group_2186" data-tab="tab-group-2186-content-2188">REST API</div><div id="tab-group-2186-tab-2189" class="nav-link" data-group="group_2186" data-tab="tab-group-2186-content-2189">JAVA</div></div><div class="tab-content"><div id="tab-group-2186-content-2187" class="tab-pane active" data-group="group_2186" tabindex="-1"><div><span><p>The <a href="/docs/en/2.9.1/reference-pulsar-admin#brokers-update-dynamic-config"><code>update-dynamic-config</code></a> subcommand will update existing configuration. It takes two arguments: the name of the parameter and the new value using the <code>config</code> and <code>value</code> flag respectively. Here's an example for the <a href="/docs/en/2.9.1/reference-configuration#broker-brokerShutdownTimeoutMs"><code>brokerShutdownTimeoutMs</code></a> parameter:</p>
<pre><code class="hljs css language-shell"><span class="hljs-meta">$</span><span class="bash"> pulsar-admin brokers update-dynamic-config --config brokerShutdownTimeoutMs --value 100</span><br /></code></pre>
</span></div></div><div id="tab-group-2186-content-2188" class="tab-pane" data-group="group_2186" tabindex="-1"><div><span><p><a href="https://pulsar.apache.org/admin-rest-api#operation/updateDynamicConfiguration?version=2.9.1&amp;apiVersion=v2"><b>POST</b> <i>/admin/v2/brokers/configuration/:configName/:configValue</i></a>
</p>
</span></div></div><div id="tab-group-2186-content-2189" class="tab-pane" data-group="group_2186" tabindex="-1"><div><span><pre><code class="hljs css language-java">admin.brokers().updateDynamicConfiguration(configName, configValue);<br /></code></pre>
</span></div></div></div></div>
<h3><a class="anchor" aria-hidden="true" id="list-updated-values"></a><a href="#list-updated-values" 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>List updated values</h3>
<p>Fetch a list of all potentially updatable configuration parameters.</p>
<div class="tabs"><div class="nav-tabs"><div id="tab-group-2190-tab-2191" class="nav-link active" data-group="group_2190" data-tab="tab-group-2190-content-2191">pulsar-admin</div><div id="tab-group-2190-tab-2192" class="nav-link" data-group="group_2190" data-tab="tab-group-2190-content-2192">REST API</div><div id="tab-group-2190-tab-2193" class="nav-link" data-group="group_2190" data-tab="tab-group-2190-content-2193">JAVA</div></div><div class="tab-content"><div id="tab-group-2190-content-2191" class="tab-pane active" data-group="group_2190" tabindex="-1"><div><span><pre><code class="hljs css language-shell"><span class="hljs-meta">$</span><span class="bash"> pulsar-admin brokers list-dynamic-config</span><br />brokerShutdownTimeoutMs<br /></code></pre>
</span></div></div><div id="tab-group-2190-content-2192" class="tab-pane" data-group="group_2190" tabindex="-1"><div><span><p><a href="https://pulsar.apache.org/admin-rest-api#operation/getDynamicConfigurationName?version=2.9.1&amp;apiVersion=v2"><b>GET</b> <i>/admin/v2/brokers/configuration</i></a>
</p>
</span></div></div><div id="tab-group-2190-content-2193" class="tab-pane" data-group="group_2190" tabindex="-1"><div><span><pre><code class="hljs css language-java">admin.brokers().getDynamicConfigurationNames();<br /></code></pre>
</span></div></div></div></div>
<h3><a class="anchor" aria-hidden="true" id="list-all"></a><a href="#list-all" 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>List all</h3>
<p>Fetch a list of all parameters that have been dynamically updated.</p>
<div class="tabs"><div class="nav-tabs"><div id="tab-group-2194-tab-2195" class="nav-link active" data-group="group_2194" data-tab="tab-group-2194-content-2195">pulsar-admin</div><div id="tab-group-2194-tab-2196" class="nav-link" data-group="group_2194" data-tab="tab-group-2194-content-2196">REST API</div><div id="tab-group-2194-tab-2197" class="nav-link" data-group="group_2194" data-tab="tab-group-2194-content-2197">JAVA</div></div><div class="tab-content"><div id="tab-group-2194-content-2195" class="tab-pane active" data-group="group_2194" tabindex="-1"><div><span><pre><code class="hljs css language-shell"><span class="hljs-meta">$</span><span class="bash"> pulsar-admin brokers get-all-dynamic-config</span><br />brokerShutdownTimeoutMs:100<br /></code></pre>
</span></div></div><div id="tab-group-2194-content-2196" class="tab-pane" data-group="group_2194" tabindex="-1"><div><span><p><a href="https://pulsar.apache.org/admin-rest-api#operation/getAllDynamicConfigurations?version=2.9.1&amp;apiVersion=v2"><b>GET</b> <i>/admin/v2/brokers/configuration/values</i></a>
</p>
</span></div></div><div id="tab-group-2194-content-2197" class="tab-pane" data-group="group_2194" tabindex="-1"><div><span><pre><code class="hljs css language-java">admin.brokers().getAllDynamicConfigurations();<br /></code></pre>
</span></div></div></div></div>
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/docs/en/2.9.1/admin-api-tenants"><span class="arrow-prev">← </span><span>Tenants</span></a><a class="docs-next button" href="/docs/en/2.9.1/admin-api-namespaces"><span>Namespaces</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#brokers-resources">Brokers resources</a><ul class="toc-headings"><li><a href="#list-active-brokers">List active brokers</a></li><li><a href="#get-the-information-of-the-leader-broker">Get the information of the leader broker</a></li><li><a href="#dynamic-broker-configuration">Dynamic broker configuration</a></li><li><a href="#update-dynamic-configuration">Update dynamic configuration</a></li><li><a href="#list-updated-values">List updated values</a></li><li><a href="#list-all">List all</a></li></ul></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="copyright">Copyright © 2022 The Apache Software Foundation. All Rights Reserved. Apache, Apache Pulsar and the Apache feather logo are trademarks of The Apache Software Foundation.</section><span><script>
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