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<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>The Pulsar proxy · Apache Pulsar</title><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta name="generator" content="Docusaurus"/><meta name="description" content="The [Pulsar proxy](/docs/en/2.1.1-incubating/concepts-architecture-overview#pulsar-proxy) is an optional gateway that you can run over the brokers in a Pulsar cluster. We recommend running a Pulsar proxy in cases when direction connections between clients and Pulsar brokers are either infeasible, undesirable, or both, for example when running Pulsar in a cloud environment or on [Kubernetes](https://kubernetes.io) or an analogous platform."/><meta name="docsearch:version" content="2.1.1-incubating"/><meta name="docsearch:language" content="en"/><meta property="og:title" content="The Pulsar proxy · Apache Pulsar"/><meta property="og:type" content="website"/><meta property="og:url" content="https://pulsar.apache.org/"/><meta property="og:description" content="The [Pulsar proxy](/docs/en/2.1.1-incubating/concepts-architecture-overview#pulsar-proxy) is an optional gateway that you can run over the brokers in a Pulsar cluster. We recommend running a Pulsar proxy in cases when direction connections between clients and Pulsar brokers are either infeasible, undesirable, or both, for example when running Pulsar in a cloud environment or on [Kubernetes](https://kubernetes.io) or an analogous platform."/><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>2.1.1-incubating</h3></a><div class="navigationWrapper navigationSlider"><nav class="slidingNav"><ul class="nav-site nav-site-internal"><li class="siteNavGroupActive"><a href="/docs/en/2.1.1-incubating/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/2.1.1-incubating/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/2.1.1-incubating/administration-proxy">日本語</a></li><li><a href="/docs/fr/2.1.1-incubating/administration-proxy">Français</a></li><li><a href="/docs/ko/2.1.1-incubating/administration-proxy">한국어</a></li><li><a href="/docs/zh-CN/2.1.1-incubating/administration-proxy">中文</a></li><li><a href="/docs/zh-TW/2.1.1-incubating/administration-proxy">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-proxy.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 id="__docusaurus" class="postHeaderTitle">The Pulsar proxy</h1></header><article><div><span><p>The <a href="/docs/en/2.1.1-incubating/concepts-architecture-overview#pulsar-proxy">Pulsar proxy</a> is an optional gateway that you can run over the brokers in a Pulsar cluster. We recommend running a Pulsar proxy in cases when direction connections between clients and Pulsar brokers are either infeasible, undesirable, or both, for example when running Pulsar in a cloud environment or on <a href="https://kubernetes.io">Kubernetes</a> or an analogous platform.</p>
<h2><a class="anchor" aria-hidden="true" id="running-the-proxy"></a><a href="#running-the-proxy" 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>Running the proxy</h2>
<p>In order to run the Pulsar proxy, you need to have both a local <a href="https://zookeeper.apache.org">ZooKeeper</a> and configuration store quorum set up for use by your Pulsar cluster. For instructions, see <a href="/docs/en/2.1.1-incubating/deploy-bare-metal">this document</a>. Once you have ZooKeeper set up and have connection strings for both ZooKeeper quorums, you can use the <a href="/docs/en/2.1.1-incubating/reference-cli-tools#pulsar-proxy"><code>proxy</code></a> command of the <a href="/docs/en/2.1.1-incubating/reference-cli-tools#pulsar"><code>pulsar</code></a> CLI tool to start up the proxy (preferably on its own machine or in its own VM):</p>
<p>To start the proxy:</p>
<pre><code class="hljs css language-bash">$ <span class="hljs-built_in">cd</span> /path/to/pulsar/directory
$ bin/pulsar proxy \
--zookeeper-servers zk-0,zk-1,zk-2 \
--configuration-store-servers zk-0,zk-1,zk-2
</code></pre>
<blockquote>
<p>You can run as many instances of the Pulsar proxy in a cluster as you would like.</p>
</blockquote>
<h2><a class="anchor" aria-hidden="true" id="stopping-the-proxy"></a><a href="#stopping-the-proxy" 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>Stopping the proxy</h2>
<p>The Pulsar proxy runs by default in the foreground. To stop the proxy, simply stop the process in which it's running.</p>
<h2><a class="anchor" aria-hidden="true" id="proxy-frontends"></a><a href="#proxy-frontends" 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>Proxy frontends</h2>
<p>We recommend running the Pulsar proxy behind some kind of load-distributing frontend, such as an <a href="https://www.digitalocean.com/community/tutorials/an-introduction-to-haproxy-and-load-balancing-concepts">HAProxy</a> load balancer.</p>
<h2><a class="anchor" aria-hidden="true" id="using-pulsar-clients-with-the-proxy"></a><a href="#using-pulsar-clients-with-the-proxy" 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>Using Pulsar clients with the proxy</h2>
<p>Once your Pulsar proxy is up and running, preferably behind a load-distributing <a href="#proxy-frontends">frontend</a>, clients can connect to the proxy via whichever address is used by the frontend. If the address were the DNS address <code>pulsar.cluster.default</code>, for example, then the connection URL for clients would be <code>pulsar://pulsar.cluster.default:6650</code>.</p>
<h2><a class="anchor" aria-hidden="true" id="proxy-configuration"></a><a href="#proxy-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>Proxy configuration</h2>
<p>The Pulsar proxy can be configured using the <a href="/docs/en/2.1.1-incubating/reference-configuration#proxy"><code>proxy.conf</code></a> configuration file. The following parameters are available in that file:</p>
<table>
<thead>
<tr><th>Name</th><th>Description</th><th>Default</th></tr>
</thead>
<tbody>
<tr><td>zookeeperServers</td><td>The ZooKeeper quorum connection string (as a comma-separated list)</td><td></td></tr>
<tr><td>configurationStoreServers</td><td>Configuration store connection string (as a comma-separated list)</td><td></td></tr>
<tr><td>zookeeperSessionTimeoutMs</td><td>ZooKeeper session timeout (in milliseconds)</td><td>30000</td></tr>
<tr><td>servicePort</td><td>The port to use for server binary Protobuf requests</td><td>6650</td></tr>
<tr><td>servicePortTls</td><td>The port to use to server binary Protobuf TLS requests</td><td>6651</td></tr>
<tr><td>statusFilePath</td><td>Path for the file used to determine the rotation status for the proxy instance when responding to service discovery health checks</td><td></td></tr>
<tr><td>authenticationEnabled</td><td>Whether authentication is enabled for the Pulsar proxy</td><td>false</td></tr>
<tr><td>authenticationProviders</td><td>Authentication provider name list (a comma-separated list of class names)</td><td></td></tr>
<tr><td>authorizationEnabled</td><td>Whether authorization is enforced by the Pulsar proxy</td><td>false</td></tr>
<tr><td>authorizationProvider</td><td>Authorization provider as a fully qualified class name</td><td>org.apache.pulsar.broker.authorization.PulsarAuthorizationProvider</td></tr>
<tr><td>brokerClientAuthenticationPlugin</td><td>The authentication plugin used by the Pulsar proxy to authenticate with Pulsar brokers</td><td></td></tr>
<tr><td>brokerClientAuthenticationParameters</td><td>The authentication parameters used by the Pulsar proxy to authenticate with Pulsar brokers</td><td></td></tr>
<tr><td>brokerClientTrustCertsFilePath</td><td>The path to trusted certificates used by the Pulsar proxy to authenticate with Pulsar brokers</td><td></td></tr>
<tr><td>superUserRoles</td><td>Role names that are treated as “super-users,” meaning that they will be able to perform all admin</td><td></td></tr>
<tr><td>forwardAuthorizationCredentials</td><td>Whether client authorization credentials are forwarded to the broker for re-authorization. Authentication must be enabled via authenticationEnabled=true for this to take effect.</td><td>false</td></tr>
<tr><td>maxConcurrentInboundConnections</td><td>Max concurrent inbound connections. The proxy will reject requests beyond that.</td><td>10000</td></tr>
<tr><td>maxConcurrentLookupRequests</td><td>Max concurrent outbound connections. The proxy will error out requests beyond that.</td><td>50000</td></tr>
<tr><td>tlsEnabledInProxy</td><td>Whether TLS is enabled for the proxy</td><td>false</td></tr>
<tr><td>tlsEnabledWithBroker</td><td>Whether TLS is enabled when communicating with Pulsar brokers</td><td>false</td></tr>
<tr><td>tlsCertificateFilePath</td><td>Path for the TLS certificate file</td><td></td></tr>
<tr><td>tlsKeyFilePath</td><td>Path for the TLS private key file</td><td></td></tr>
<tr><td>tlsTrustCertsFilePath</td><td>Path for the trusted TLS certificate pem file</td><td></td></tr>
<tr><td>tlsHostnameVerificationEnabled</td><td>Whether the hostname is validated when the proxy creates a TLS connection with brokers</td><td>false</td></tr>
<tr><td>tlsRequireTrustedClientCertOnConnect</td><td>Whether client certificates are required for TLS. Connections are rejected if the client certificate isn’t trusted.</td><td>false</td></tr>
</tbody>
</table>
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/docs/en/2.1.1-incubating/administration-load-distribution"><span class="arrow-prev">← </span><span>Previous</span></a><a class="docs-next button" href="/docs/en/2.1.1-incubating/security-overview"><span>Overview</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#running-the-proxy">Running the proxy</a></li><li><a href="#stopping-the-proxy">Stopping the proxy</a></li><li><a href="#proxy-frontends">Proxy frontends</a></li><li><a href="#using-pulsar-clients-with-the-proxy">Using Pulsar clients with the proxy</a></li><li><a href="#proxy-configuration">Proxy configuration</a></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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