Hi, We're experiencing Tomcat crashes during stresstesting of a webapplication.
Situation: Tomcat runs as a Windows service. During stresstests the Tomcat-services suddenly ends "unexpectedly". The Windows eventlog logs states something like: "...service ended unexpectedly..." The problem is not easily or consistently reproducable... When I look at all the logs of Tomcat and of our webapplication, no mention of an exception or error or crash whatsoever !(?) (They all just stop abruptly) First I thought it was an OutOfMemoryError problem. I forced an OutOfMemoryError myself by limiting the memory of the JVM of Tomcat severely. But then I could see loggings of an OutOfMemoryError in the Tomcat stderr-log, which is not what I expected because I didn't expect any loggings of a crash at all... The problem only *seems* to occur when the servermachine is completely left alone (not logged in or locked) Additionally, it usually occurs after between 30-70 minutes or so. When I keep monitoring the machine while the same tests are running the crash doesn't seem to occur ?! Could it be a power-saving issue, like e.g. with the network-adaptor ? Then I would not expect a crash, but a stacktrace ? I tried adding a try-catch(Throwable) around a method where everything starts (the process method of my Struts ActionServlet). I've been trying to reproduce the problem since, but as I mentioned, it's not consistently reproducable... I've searched the net trying to find related problems, or a JVM problem of some kind with this version, haven't been successful though... If it is a problem with bad memory, I would expect to see different behaviour, like more random crashes, not only of the Tomcat service... Environment: Tomcat 4.1.29, JDK 1.4.2_03, Windows 2000ProSP4, bi-processor Xeon machine. Any help/advice/ideas is really welcome and appreciated ! Kind regards, David --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
