| 1 | <html><head><META http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><title>Apache Tomcat 6.0 - Connectors How To</title><meta value="Remy Maucherat" name="author"><meta value="remm@apache.org" name="email"></head><body vlink="#525D76" alink="#525D76" link="#525D76" text="#000000" bgcolor="#ffffff"><table cellspacing="0" width="100%" border="0"><!--PAGE HEADER--><tr><td><!--PROJECT LOGO--><a href="http://tomcat.apache.org/"><img border="0" alt=" |
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| 2 | The Apache Tomcat Servlet/JSP Container |
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| 3 | " align="right" src="./../images/tomcat.gif"></a></td><td><font face="arial,helvetica,sanserif"><h1>Apache Tomcat 6.0</h1></font></td><td><!--APACHE LOGO--><a href="http://www.apache.org/"><img border="0" alt="Apache Logo" align="right" src="./../images/asf-logo.gif"></a></td></tr></table><table cellspacing="4" width="100%" border="0"><!--HEADER SEPARATOR--><tr><td colspan="2"><hr size="1" noshade></td></tr><tr><!--RIGHT SIDE MAIN BODY--><td align="left" valign="top" width="80%"><table cellspacing="4" width="100%" border="0"><tr><td valign="top" align="left"><h1>Apache Tomcat 6.0</h1><h2>Connectors How To</h2></td><td nowrap="true" valign="top" align="right"><img border="0" hspace="0" vspace="0" height="1" width="1" src="./../images/void.gif"></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Introduction"><strong>Introduction</strong></a></font></td></tr><tr><td><blockquote> |
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| 4 | |
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| 5 | <p>Choosing a connector to use with Tomcat can be difficult. This page will |
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| 6 | list the connectors which are supported with this Tomcat release, and will |
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| 7 | hopefully help you make the right choice according to your needs.</p> |
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| 8 | |
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| 9 | </blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="HTTP"><strong>HTTP</strong></a></font></td></tr><tr><td><blockquote> |
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| 10 | |
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| 11 | <p>The HTTP connector is setup by default with Tomcat, and is ready to use. This |
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| 12 | connector features the lowest latency and best overall performance.</p> |
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| 13 | |
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| 14 | <p>For clustering, a HTTP load balancer <b>with support for web sessions stickiness</b> |
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| 15 | must be installed to direct the traffic to the Tomcat servers. Tomcat supports mod_proxy |
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| 16 | (on Apache HTTP Server 2.x, and included by default in Apache HTTP Server 2.2) as the load balancer. |
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| 17 | It should be noted that the performance of HTTP proxying is usually lower than the |
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| 18 | performance of AJP, so AJP clustering is often preferable.</p> |
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| 19 | |
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| 20 | </blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="AJP"><strong>AJP</strong></a></font></td></tr><tr><td><blockquote> |
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| 21 | |
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| 22 | <p>When using a single server, the performance when using a native webserver in |
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| 23 | front of the Tomcat instance is most of the time significantly worse than a |
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| 24 | standalone Tomcat with its default HTTP connector, even if a large part of the web |
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| 25 | application is made of static files. If integration with the native webserver is |
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| 26 | needed for any reason, an AJP connector will provide faster performance than |
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| 27 | proxied HTTP. AJP clustering is the most efficient from the Tomcat perspective. |
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| 28 | It is otherwise functionally equivalent to HTTP clustering.</p> |
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| 29 | |
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| 30 | <p>The native connectors supported with this Tomcat release are: |
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| 31 | <ul> |
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| 32 | <li>JK 1.2.x with any of the supported servers</li> |
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| 33 | <li>mod_proxy on Apache HTTP Server 2.x (included by default in Apache HTTP Server 2.2), |
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| 34 | with AJP enabled</li> |
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| 35 | </ul> |
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| 36 | </p> |
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| 37 | |
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| 38 | <p><b>Other native connectors supporting AJP may work, but are no longer supported.</b></p> |
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| 39 | |
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| 40 | </blockquote></td></tr></table></td></tr><!--FOOTER SEPARATOR--><tr><td colspan="2"><hr size="1" noshade></td></tr><!--PAGE FOOTER--><tr><td colspan="2"><div align="center"><font size="-1" color="#525D76"><em> |
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| 41 | Copyright © 1999-2008, Apache Software Foundation |
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| 42 | </em></font></div></td></tr></table></body></html> |
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