81 lines
2.9 KiB
XML
81 lines
2.9 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!--
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<!DOCTYPE document [
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<!ENTITY project SYSTEM "project.xml">
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]>
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<document url="connectors.html">
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&project;
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<properties>
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<author email="remm@apache.org">Remy Maucherat</author>
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<title>Connectors How To</title>
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</properties>
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<body>
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<section name="Table of Contents">
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<toc/>
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</section>
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<section name="Introduction">
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<p>Choosing a connector to use with Tomcat can be difficult. This page will
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list the connectors which are supported with this Tomcat release, and will
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hopefully help you make the right choice according to your needs.</p>
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</section>
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<section name="HTTP">
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<p>The HTTP connector is setup by default with Tomcat, and is ready to use. This
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connector features the lowest latency and best overall performance.</p>
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<p>For clustering, an HTTP load balancer <b>with support for web sessions stickiness</b>
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must be installed to direct the traffic to the Tomcat servers. Tomcat supports mod_proxy
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(on Apache HTTP Server 2.x, and included by default in Apache HTTP Server 2.2) as the load balancer.
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It should be noted that the performance of HTTP proxying is usually lower than the
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performance of AJP, so AJP clustering is often preferable.</p>
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</section>
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<section name="AJP">
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<p>When using a single server, the performance when using a native webserver in
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front of the Tomcat instance is most of the time significantly worse than a
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standalone Tomcat with its default HTTP connector, even if a large part of the web
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application is made of static files. If integration with the native webserver is
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needed for any reason, an AJP connector will provide faster performance than
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proxied HTTP. AJP clustering is the most efficient from the Tomcat perspective.
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It is otherwise functionally equivalent to HTTP clustering.</p>
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<p>The native connectors supported with this Tomcat release are:</p>
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<ul>
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<li>JK 1.2.x with any of the supported servers</li>
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<li>mod_proxy on Apache HTTP Server 2.x (included by default in Apache HTTP Server 2.2),
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with AJP enabled</li>
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</ul>
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<p><b>Other native connectors supporting AJP may work, but are no longer supported.</b></p>
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</section>
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</body>
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</document>
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