I do NOT blame log4j, i just wanted to share my observations and confront my suspicion with you guys.
I think we got to the same conclussion actually. Though, i have not idea how this (potential) caching would work on Linux/Unix systems (Red Hat, Ubuntu and Solaris do the same thing with those log files, actually... coincidance?). I bet this is not some normal behaviour. Thanx, -----Original Message----- From: Wyss Patrick [mailto:[EMAIL PROTECTED] Sent: Thursday, March 22, 2007 11:52 AM To: Log4J Users List Subject: AW: Weird memory consumption if i understand you correctly and the memory is reclaimed once you delete the logs, then it is no "leak" (=bad, bad, bad!) but might be "caching" (=good,good,good!). even if this caching might be not desirable in some situations ;-) what i want to say is that i would check if jvn/RH is to be blamed. before blaming log4j ;-) > -----Ursprüngliche Nachricht----- > Von: Wozniak, Marcin [mailto:[EMAIL PROTECTED] > Gesendet: Donnerstag, 22. März 2007 11:27 > An: Log4J Users List > Betreff: RE: Weird memory consumption > > > Thanx Andrew anyway. > > I got your point. There may be something wrong between JVN and OS. > However, as i said i would not blame JVM for any leaks > (especially that > in a meantime we've change JVM version couple of times). > > -----Original Message----- > From: Andrew Marlow [mailto:[EMAIL PROTECTED] > Sent: Wednesday, March 21, 2007 4:32 PM > To: Log4J Users List > Subject: RE: Weird memory consumption > > Wozniak, Marcin wrote: > > I do not think using valgrind is even possible. Tested > > software is quite complex, multithreaded server application. > > Beside the problem insists after few days of long-duration tests. > > ok then, maybe not.... > > > > > BTW do you really think that Valgrind is useful for Java > > application profiling? > > No. But I was hoping it might be able to shed light on why a java app > apparently leaks memory. Valgrind is good for finding memory > corruptions > and memory leaks. > > > I guess it is more useful in C++ > > application since there is no virtual machine between the > > software and operation system. > > Yes. The JVM would seem to be standing in the way. Still, I was hoping > it still might shed some light. > > > Because I dont find very > > likely that newest update of java 1.5 has any leaks. > > I wasn't suggesting the fault was with the JVM..... > > > > > > > > -----Original Message----- > > From: Andrew Marlow [mailto:[EMAIL PROTECTED] > > Sent: Wednesday, March 21, 2007 2:17 PM > > To: Log4J Users List > > Subject: RE: Weird memory consumption > > > > Wozniak, Marcin wrote: > >> Hi, > >> > >> We have been investigating memory leaks in the system we > write (JAVA) > >> and we experianced the following problem on Red Hat 4.0 system. > >> > >> Even though JConsole, and JProfiler do not show any improper memory > >> consumption in JVM, operation system tools like Top show that JVM > >> process consumes a lot of memory. > >> > >> The longer the test lasts, the more memory loss can be noticed. > > > > What does valgrind say? > > > > Regards, > > > > Andrew Marlow > > > > > > > > ************************************************************** > > ********** > > ******" > > The data and information (collectively called Information) > > herein is the sole property of ICAP. 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