| <html><head> |
| <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> |
| <title>Non-Persistent Sessions</title><link rel="stylesheet" type="text/css" href="css/docbook.css"><meta name="generator" content="DocBook XSL Stylesheets V1.79.1"><meta name="keywords" content="jetty, servlet, servlet-api, cometd, http, websocket, eclipse, maven, java, server, software"><link rel="home" href="index.html" title="Jetty"><link rel="up" href="session-management.html" title="Chapter 10. Session Management"><link rel="prev" href="session-configuration-sessioncache.html" title="The L1 Session Cache"><link rel="next" href="configuring-sessions-file-system.html" title="Persistent Sessions: File System"><link xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times" rel="shortcut icon" href="images/favicon.ico"><link rel="stylesheet" href="css/highlighter/foundation.css"><script src="js/highlight.pack.js"></script><script> |
| hljs.initHighlightingOnLoad(); |
| </script><link type="text/css" rel="stylesheet" href="css/font-awesome/font-awesome.min.css"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><table xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times"><tr><td style="width: 25%"><a href="http://www.eclipse.org/jetty"><img src="images/jetty-header-logo.png" alt="Jetty Logo"></a><br><span style="font-size: small"> |
| Version: 9.4.28-SNAPSHOT</span></td><td style="width: 50%"></td></tr></table><div xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Non-Persistent Sessions</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="session-configuration-sessioncache.html"><i class="fa fa-chevron-left" aria-hidden="true"></i> Previous</a> </td><th width="60%" align="center">Chapter 10. Session Management<br><a accesskey="p" href="index.html"><i class="fa fa-home" aria-hidden="true"></i> Home</a></th><td width="20%" align="right"> <a accesskey="n" href="configuring-sessions-file-system.html">Next <i class="fa fa-chevron-right" aria-hidden="true"></i></a></td></tr></table><hr></div><div xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times" class="jetty-callout"><h5 class="callout"><a href="http://www.webtide.com/">Contact the core Jetty developers at |
| <span class="website">www.webtide.com</span></a></h5><p> |
| private support for your internal/customer projects ... custom extensions and distributions ... versioned snapshots for indefinite support ... |
| scalability guidance for your apps and Ajax/Comet projects ... development services for sponsored feature development |
| </p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="configuring-sessions-memory"></a>Non-Persistent Sessions</h2></div></div></div><p>Non-clustered, non-persistent, in-memory-only is the default style of session management. |
| In previous versions of Jetty this was referred to as "hash" sessions, as they were stored in a <code class="literal">HashMap</code> in memory.</p><p>This is delivered by a combination of the <code class="literal">DefaultSessionCache</code> (to keep sessions in memory) and a <code class="literal">NullSessionDataStore</code> (to avoid session persistence).</p><p>If you do nothing, Jetty will instantiate one of each of these objects for each context at startup time using hard-coded defaults.</p><p>To explicitly set up non-persisted sessions using modules, use both the <code class="literal">session-cache-hash</code> and the <code class="literal">session-store-null</code> modules.</p><p>Enabling the modules allows you to configure behavior - see <a class="link" href="session-configuration-sessioncache.html" title="The L1 Session Cache">the L1 Session Cache</a> for detailed information on configuration options for the <code class="literal">DefaultSessionCache</code>. |
| The <code class="literal">NullSessionDataStore</code> has no customizable options.</p></div><script type="text/javascript"> |
| SyntaxHighlighter.all() |
| </script><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="session-configuration-sessioncache.html"><i class="fa fa-chevron-left" aria-hidden="true"></i> Previous</a> </td><td width="20%" align="center"><a accesskey="u" href="session-management.html"><i class="fa fa-chevron-up" aria-hidden="true"></i> Top</a></td><td width="40%" align="right"> <a accesskey="n" href="configuring-sessions-file-system.html">Next <i class="fa fa-chevron-right" aria-hidden="true"></i></a></td></tr><tr><td width="40%" align="left" valign="top">The L1 Session Cache </td><td width="20%" align="center"><a accesskey="h" href="index.html"><i class="fa fa-home" aria-hidden="true"></i> Home</a></td><td width="40%" align="right" valign="top"> Persistent Sessions: File System</td></tr></table></div><p xmlns:jfetch="java:org.eclipse.jetty.xslt.tools.JavaSourceFetchExtension" xmlns:fetch="java:org.eclipse.jetty.xslt.tools.SourceFetchExtension" xmlns:d="http://docbook.org/ns/docbook" xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" xmlns:xslthl="http://xslthl.sf.net" xmlns:gcse="http://www.google.com" xmlns:date="http://exslt.org/dates-and-times"><div class="jetty-callout"> |
| See an error or something missing? |
| <span class="callout"><a href="http://github.com/eclipse/jetty.project">Contribute to this documentation at |
| <span class="website"><i class="fa fa-github" aria-hidden="true"></i> Github!</span></a></span><span style="float: right"><i>(Generated: 2020-03-10)</i></span></div></p></body></html> |
