-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 David,
On 1/16/13 10:52 AM, David Kumar wrote: > We got some serious trouble with our tomcats. Basically we using > two 7.0.12 tomcats on a single Debian 6.0. One is running on port > 7090 and the other on 9080. Time after time both tomcats are > crashing. I found too many open files in tomcatlogfiles. Bummer. > Both Servers are running with one user (TOMCAT). Can you post the <Connector> parts of your server.xml files (from both Tomcat configurations)? Also, what does `ulimit -n` return from an otherwise unmodified shell running as the user who owns Tomcat processes? > After changing max open files for that particular user I was able > to get more than 1024 open files. Currently I'm checking log files > every few minutes. With lsof|grep tomcat|wc -l I'm counting the > open files by user. Usually there are around 600-700 open files. > But sometimes the count grows and we have more than 1200 open > files. You'll get file handled opened for both real files (like /tmp/foo, etc.) and for socket connections. If you aren't careful, you can have a configuration that will work for a while bit tip-over under load. > When ever the server does have so many open files I checked: lsof > -u tomcat an figured out there are many connection waiting to be > closed. The connections are looking like this: > > java 22312 tomcat 153u IPv6 1508517 0t0 > TCP localhost:afs3-rmtsys->localhost:50127 (CLOSE_WAIT) Are you sure your port is 7090 and not 7009? Is 22312 the right process id for Tomcat? The well-known port number for the "afs3-rmtsys" service is 7009. It would be odd, though, for your Java process to be calling *out* from a port like that ... usually you get a high-numbered port when making an outgoing connection. Who owns localhost:50127 in that case? - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with undefined - http://www.enigmail.net/ iEYEAREIAAYFAlD27f4ACgkQ9CaO5/Lv0PD7RQCfd7PaA5eY4pANZY6NYhGB3OmN 5+4AoJ9GihEA9NZr2BoCIARfBTaTqs8T =x9/z -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
