The size of the request header exceeds what's configured for the application.


Edit your tomcat/conf/server.xml  configuration file and add a packetSize="65536" attribute to the appropriate connector.

For example, change:

<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />


<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" packetSize="65536" />

If you are proxying with Apache over AJP you will want to also add a ProxyIOBufferSize directive to your VirtualHost that is set to the same value. This ensures both Apache and Tomcat are configured to use the same values.


ProxyIOBufferSize 65536

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