Chuck and Chris, Thanks for your replies. Below is some information to your questions/suggestions:
>> Check the kernel logs (e.g., /var/log/messages, /var/log/warn), not >> just the Tomcat ones. Also, look for a JVM dump file >> (hs_err_pid*.log) I have and there is nothing in the messages file except accesses granted to specific workstations coming in on ssh and sync'ing to a time server. Neither of these have times that correspond to the crashes. There are no hs_err_* files anywhere on the servers. > Smells a lot like OOM killer. > > Carl, you say you have a 2GiB heap. Are you using 32-bit or 64-bit > JVM? What about other large-memory processes on the same boxes? Do you > have other JVMs running or a database, etc.? Does the JVM die on any > kind of schedule? We are running 64 bit OS's (Slackware 13.x, the latest version.) There are two other applications running on each of the boxes: 1) the Apache James email server (localhost SMTP only) and 2) a small application that serves reports. They are both very small (the current server shows 11GB+ free memory) and always survive theTomcat crashes. These servers are only used for Tomcat (and the related James and report serving app.) Not on a timed schedule but usually during high traffic periods (usually, but not always, as with last Friday.) Thanks, Carl On Feb 28, 2012, at 11:13 AM, Christopher Schultz wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Chuck, > > On 2/27/12 9:01 PM, Caldarale, Charles R wrote: >>> From: Carl Kabbe [mailto:c...@etrak-plus.com] Subject: Tomcat >>> suddenly dies >> >>> Starting about a month ago, Tomcat would suddenly fail, no heap >>> dump, no indication of trouble in the log, no indication the JVM >>> crashed >> >> Check the kernel logs (e.g., /var/log/messages, /var/log/warn), not >> just the Tomcat ones. Also, look for a JVM dump file >> (hs_err_pid*.log), possibly in the current directory of what was >> the Tomcat process. > > +1 > > Smells a lot like OOM killer. > > Carl, you say you have a 2GiB heap. Are you using 32-bit or 64-bit > JVM? What about other large-memory processes on the same boxes? Do you > have other JVMs running or a database, etc.? Does the JVM die on any > kind of schedule? > > - -chris > -----BEGIN PGP SIGNATURE----- > Version: GnuPG/MacGPG2 v2.0.17 (Darwin) > Comment: GPGTools - http://gpgtools.org > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > iEYEARECAAYFAk9M/RcACgkQ9CaO5/Lv0PDtmQCgmnkl/KExQjSradWMoIvxEM+Y > AWsAmgJudFWslkrIZLv7uID+uWUu9HZs > =lUVS > -----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
