Q: In Tomcat, I got a "Post data too big" error.

A: Apache Tomcat by default sets a limit on the maximum size of HTTP POST requests it accepts.
   In Tomcat 5, this limit is set to 2097152 (2 Mb). When you try to upload files or post forms that are
   larger than 2 MB, this error can occur.

   The solution is to reconfigure Tomcat to accept larger POST requests, either by increasing
   the limit, or by disabling it. This can be done by editing Tomcat's server.xml. 
   In the <Connector> element, add an attribute "maxPostSize" and set a larger value (in bytes) to
   increase the limit. Setting it to 0 will disable the size check.