Our organization is running squid 2.5.9-10. We're having a problem sending a request to tomcat through squid that has a 4,377 chars or more URI. (it's a very long GET request). If the GET URI is only 3,734 characters long then the request is properly passed to Tomcat and Tomcat correctly sends the response. If we send a larger 4,377 character request directly to tomcat via 8080 it responds correctly. But when send to port 80 through squid I get the following squid's access.log: 1210964572.259 1 10.100.0.2 TCP_DENIED/400 5704 GET (cutting out long request here, I can show if you want) - NONE/- text/html We tried to edit the squid.conf to request_body_max_size 8192 KB (in order to get the request past tomcat I had changed tomcat's maxHttpHeaderSize = "8192") After trying this change in the squid.conf file the error message was the same. Then we also examined squid's request_header_max_size which was set to the default of 0 meaning no limit. Since it is a GET request we assume there's no body. Headers are not large. There is no ACL in place. Why does a very long URI not work, is there a configuration option to affect this?
