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Tomcat 7 manager fails when deploying a WAR file when using the AJP connector

When the Tomcat 7 manager tries to deploy a war file, it fails with the following error:

Feb 28, 2013 8:20:35 AM org.apache.coyote.ajp.AjpMessage processHeader
SEVERE: Invalid message received with signature 8192

ANSWER:

• By default, the maximum packet size that can be process by the AJP connector is 8192 bytes.  Do the following to change the default:
  1. Edit the Tomcat server.xml file located in the conf directory of your Tomcat installation.
  2. Find the Connector entry (show below).

     Code Block
     <Connector port="8009" protocol="AJP/1.3" tomcatAuthentication="false" redirectPort="8443" address="127.0.0.1" maxPostSize="536870912" />

  3. Add maxHttpHeaderSize="65536" and packetSize="65536" so that the Connector is as follows:

     Code Block
     <Connector port="8009" protocol="AJP/1.3" tomcatAuthentication="false" redirectPort="8443" address="127.0.0.1" maxPostSize="536870912" maxHttpHeaderSize="65536" packetSize="65536" />

  4. When you are satisfied with your changes, save your changes and restart your Tomcat server.