-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Konstantin,
On 6/9/15 5:04 AM, Konstantin Kolinko wrote: > 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_Requ est_Filter +1 I > re-read the OP and I was under the impression that the Filter was reading the request parameters properly, but that the servlet was then re-reading the parameters and getting nulls. Having re-read that, I suspect Konstantin's analysis is correct, and that the parameter values were probably broken in some way. - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 Comment: GPGTools - http://gpgtools.org iQIcBAEBCAAGBQJVdxD4AAoJEBzwKT+lPKRYc6sP/RDSV9IeARJXJIo4f6VeRwJv S/RcHDq8tmUmT1Z/gvX6nzTeEiHclIXoXMY3AJ0wg0LJHHQHMw+Z5waX1j76/hoQ TDmO/qNewqyWnI3oCsg6h7yrjtugs9hsqK77LJCUY0954qrSP/+McKUNQTLW3sGP Ik7ImDNaFHGZZvwgaq1DAzL9Sa+QM2XiTZqnM5yxykW2tmy1kOv4/47Pb97NUJyz 2C2WjZqgQBIRVOh7L5Wg8tp9SLtZ548oUSJopadoLaqsdvlva8H9v7Lz/ESOS8V8 3voPz9owNDn+5E641piv9ykHh86emltFE1uVRaV3ryX1LW11mGi0Qhqhn9DC2U2b WeR5VZ0iiSiS/BdnNN+8hnT1o32GquLkJPx4aGco3kjeLV2ADBpTNaAupwYfRl9Y NVbM9CZlLR97CPic4qmV1yECgv1UDaSp4sRE5G6SFc1UnxPDUIi2EVAPYthKF66Z mtVHBOgwWARGohqlbtjuIugPAOu3RYnV4qg7ZqWfxPrnvXTWjGOETOzeidEdn9hb EcXYcTRTShk609vWXA5BvPK/H8eJ3Mg84a0wRex8NdlsuZZaQFd/WfVXvklk5ndl ge0siyVLSynHXdjDCnPm5sKyHREyCOUjgYtOQky0b7sHS36i2CPdKH0srQ9DngkY +crYqQ+kzEH61VTadc1r =JPLZ -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
