On Wed, Feb 16, 2011 at 6:16 PM, Christopher Schultz <ch...@christopherschultz.net> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Leon, > > On 2/16/2011 11:53 AM, Leon Rosenberg wrote: >> On Wed, Feb 16, 2011 at 5:37 PM, Caldarale, Charles R >> <chuck.caldar...@unisys.com> wrote: >>>> From: Christopher Schultz [mailto:ch...@christopherschultz.net] >>>> Subject: Re: [OT] OutOfMemoryError: GC overhead limit exceeded >>> >>>> Here's what jmap reports this morning: >>> >>>> PS Old Generation >>>> capacity = 134217728 (128.0MB) >>>> used = 61911720 (59.043617248535156MB) >>>> free = 72306008 (68.95638275146484MB) >>>> 46.12782597541809% used >>> >>> Interesting. Something must have broken loose overnight. >>> >>>> Does this look healthy enough to continue, or should I >>>> schedule a restart ASAP? >>> >>> I'd let it run, and see what happens. >>> >>>> I suspect one (or more) of those operations was performed >>>> and the objects were reachable for a while (lived in the >>>> session, probably) but then eventually became collectible >>>> and GC recovered. >>> >>> Sounds highly plausible. >> >> Do you log number of users/sessions? Would probably be interesting to >> see this in correlation. > > Not currently. We're working on some decent instrumentation tools to > basically log all kinds of stuff like this on a regular interval... say > every minute or five minutes. I could connect to the JVM using JConsole > and ask Tomcat for the session count (all users have a session) but the > event is long gone so any information I get now would not be directly > relevant.
reinventing the wheel? :-) http://moskito.anotheria.net among others... best regards Leon > > Thanks, > - -chris > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.10 (MingW32) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > iEYEARECAAYFAk1cBnUACgkQ9CaO5/Lv0PCJRwCgo+ssFInOJ53tJQrO1ZdNhFPk > UW0An1sKMuCkckA8Rjwzu23xM0CmxOAY > =jBKF > -----END PGP SIGNATURE----- > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
