Thanks Chuck. I have done some further research and I have the impression that there is some kind of race condition where a session that is being removed because of a timeout is also handling requests.
The loggings indicate that a session is destroyed but then nevertheless a doGet is invoked with a request parameter that refers to that timed out session. If I crank up the timeout, seriously reducing the chances a session times out before it has completed all the client requests it is supposed to handle during the test, the problem does no longer occur. I am not sure where that leaves me. I am still uncertain as to what the servlet is doing wrong. Would you (or anyone else) have any other comments on this? Thanks, Peter Caldarale, Charles R wrote: > >> From: Peter Coppens [mailto:[EMAIL PROTECTED] >> Subject: session#getId changes during doGet invocation under >> heavy load >> >> THe problem I run into is that, under heavy load, during the >> doGet invocation for the login request the session attached >> to the request is changed by some other thread (the value >> returned from getId changes and attributes that are originally >> set are removed). > > This is most likely an application problem - storing session- or > request-specific data in an inappropriately scoped structure (e.g., a > servlet field). Under light load, this won't hurt, since the insertion > and retrieval for a given request don't overlap any other requests. As > the load increases, so does the probability of an overlap and erroneous > retrieval of data for another request. > > - Chuck > > > THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY > MATERIAL and is thus for use only by the intended recipient. If you > received this in error, please contact the sender and delete the e-mail > and its attachments from all computers. > > --------------------------------------------------------------------- > To start a new topic, e-mail: users@tomcat.apache.org > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > -- View this message in context: http://www.nabble.com/session-getId-changes-during-doGet-invocation-under-heavy-load-tf2892448.html#a8085181 Sent from the Tomcat - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
