Apache Tomcat 7 (7.0.63) - Connectors How To
Author: Remy Maucherat

| # Apache Tomcat 7 Version 7.0.63, Jun 30 2015 |

Links Docs Home FAQ User Comments User Guide 1) Introduction 2) Setup 3) First webapp 4) Deployer 5) Manager 6) Realms and AAA 7) Security Manager 8) JNDI Resources 9) JDBC DataSources 10) Classloading 11) JSPs 12) SSL/TLS 13) SSI 14) CGI 15) Proxy Support 16) MBean Descriptor 17) Default Servlet 18) Clustering 19) Load Balancer 20) Connectors 21) Monitoring and Management 22) Logging 23) APR/Native 24) Virtual Hosting 25) Advanced IO 26) Additional Components 27) Mavenized 28) Security Considerations 29) Windows Service 30) Windows Authentication 31) Tomcat's JDBC Pool 32) WebSocket Reference Release Notes Configuration Tomcat Javadocs Servlet Javadocs JSP 2.2 Javadocs EL 2.2 Javadocs WebSocket 1.1 Javadocs JK 1.2 Documentation Apache Tomcat Development Building Changelog Status Developers Architecture Functional Specs. Tribes | # Connectors How To
Table of Contents
Introduction HTTP AJP
Introduction
Choosing a connector to use with Tomcat can be difficult. This page will list the connectors which are supported with this Tomcat release, and will hopefully help you make the right choice according to your needs.
HTTP
The HTTP connector is setup by default with Tomcat, and is ready to use. This connector features the lowest latency and best overall performance. For clustering, a HTTP load balancer with support for web sessions stickiness must be installed to direct the traffic to the Tomcat servers. Tomcat supports mod_proxy (on Apache HTTP Server 2.x, and included by default in Apache HTTP Server 2.2) as the load balancer. It should be noted that the performance of HTTP proxying is usually lower than the performance of AJP, so AJP clustering is often preferable.
AJP
When using a single server, the performance when using a native webserver in front of the Tomcat instance is most of the time significantly worse than a standalone Tomcat with its default HTTP connector, even if a large part of the web application is made of static files. If integration with the native webserver is needed for any reason, an AJP connector will provide faster performance than proxied HTTP. AJP clustering is the most efficient from the Tomcat perspective. It is otherwise functionally equivalent to HTTP clustering. The native connectors supported with this Tomcat release are: JK 1.2.x with any of the supported servers mod_proxy on Apache HTTP Server 2.x (included by default in Apache HTTP Server 2.2), with AJP enabled Other native connectors supporting AJP may work, but are no longer supported.
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