Hi Ashish, thx for your reply. The problem is sometimes it takes sometime to get the OOM, other times it happens within one minute. One of our users reported to me that it happened within 1 minute (10 seconds and 30 seconds), after he switched to MINA trunk. So it seems it is faster reproducable with MINA trunk. I uploaded the screenshot of Eclipse Memory Analyzer to :
http://people.apache.org/~norman/oom/Screenshot-Eclipse_Memory_Analyzer.png This was the one we got with MINA trunk. So you it again shows all the memory allocated by MINA. To reproduce the OOM you must perform the following steps: 1) svn checkout http://svn.apache.org/repos/asf/server/trunk james-trunk 2) cd james-trunk 2) mvn clean package 3) tar xfvz spring-deployment/target/james-spring-deployment-3.0-M1-bin.tar.gz 4) cd james-string-deploymnet-3.0-M1/bin 5) sudo ./run.sh 6) telnet localhost 4555 (user root, pass root) 7) adduser test test 8) quit Now bomb the server with emails. You can use for example smtp-source for it (wich is included in postfix) 9) smtp-source -s 20 -l 10100 -m 200000 -c -f t...@test.de -t test localhost:25 This will bomb the servers with 200000 emails with 20 concurrent sessions. Hope this helps, Bye, Norman 2010/4/5 Ashish <paliwalash...@gmail.com>: > On Sun, Apr 4, 2010 at 12:59 AM, Norman Maurer <nor...@apache.org> wrote: >> Hi all, >> >> we at JAMES use MINA since a while now for our socket stuff. After >> doing some stress tests we encountered some OOM Exceptions. The same >> was seen by one of our users which use JAMES trunk. After debugging >> stuff it seems like the cause of the OOM is MINA. We took some heap >> which shows that MINA is takin the most memory. The class which shows >> the memory usage was: >> >> org.apache.mina.filter.codec.ProtocolCodecFilter$EncodedWriteRequest >> >> I attach the screnshots which shows the problem. Any idea ? We are >> using MINA-2.0.0-RC1. >> >> Maybe I'm wrong and the whole OOM is not related to MINA at all.. >> >> Thanks, >> Norman >> >> Ps: Please keep server-dev in the cc > > Norman, > > Is there a way to reproduce this? I just want to try it out myself and debug. > > -- > thanks > ashish > > Blog: http://www.ashishpaliwal.com/blog > My Photo Galleries: http://www.pbase.com/ashishpaliwal > --------------------------------------------------------------------- To unsubscribe, e-mail: server-dev-unsubscr...@james.apache.org For additional commands, e-mail: server-dev-h...@james.apache.org
