2015-06-04 18:40 GMT+03:00 Ravi Kiran <ravikiran...@gmail.com>: > Hi, > > I am writing to get some pointers on a strange issue which are facing in > tomcat in one of our client environments. > > Setup: 4 Webservers connecting to 2 tomcat using mod_jk (load balanced) > > Issue: Request parameters GET/POST are coming as null to the application > intermittently i.e, filter in web app dumps the request parameters and > finds everything empty. TCP dumps are inspected and packets are reaching > tomcat even during the failure cases. Parameters are available in tcpdump > but lost in between before it reaches application. This happens only on one > specific client environment which makes it even difficult to isolate the > problem. > > Tomcat Version: 7.0.54 > > Please suggest some pointers to debug and resolve this issue. I can provide > more info if needed. >
The Servlet API has no way to report errors (such as IOException) from request.getParameter() family of methods. There is a Tomcat-specific request attribute that is set to a non-null value when parsing of parameters fails. See org.apache.catalina.filters.FailedRequestFilter [1] as a sample of code. [1] http://tomcat.apache.org/tomcat-7.0-doc/config/filter.html#Failed_Request_Filter --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
