maybe you should perform a full thread dump in normal state, and check whether this very long running requests result in hanging threads? Then you are probably out of threads at some point and no more connections can be created. You have no "SEVERE All Threads busy" in your catalina.out by chance?
leon On 1/25/07, Brian Cross <[EMAIL PROTECTED]> wrote:
Christopher, thanks for the reply. Yes I have checked all the logs and there are no warnings or errors when the hang occurs. You are right that since the VM appears to hang, fronting with apache may not help but it would rule out the Coyote connector at least. One other thing I did notice is that in the tomcat manager server status page there are some connections that seem to be hung, for example: Stage Time B Sent B Recv *S* 28604 ms 24 KB 0 KB *S* 1273330 ms 16 KB 0 KB *S* 829528 ms 16 KB 0 KB *S* 1293854 ms 16 KB 0 KB *S* 1331406 ms 16 KB 0 KB *S* 329442 ms 16 KB 0 KB I picked out the ones with the highest value for Time out of the 185 active threads. Most threads are in the K or R state. I have the connectionTimeout on the connector set to 20 seconds so I don't understand what these threads are doing. Maybe this is a clue? Thanks! --Brian. Christopher Schultz wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Brian, > > Brian Cross wrote: > >> I would really appreciate any advice, I really don't know where to go >> from here to try and figure it out. If I can't figure it out soon my >> plan is to use apache2 as the webserver and connect to tomcat via JK. >> > > You didn't explicitly say that you did, so I have to ask: you looked in > all your log files, right? > > If your VM really is crashing/hanging/whatever, then adding Apache httpd > out front is unlikely to change anything. > > - -chris > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.6 (MingW32) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > iD8DBQFFuQOy9CaO5/Lv0PARAgvTAKCPlHuIIHdZh09xubolGgShG0wASQCfY9/8 > VAp2J+4kxL9tOw951u7xtmk= > =C/L8 > -----END PGP SIGNATURE----- > > --------------------------------------------------------------------- > To start a new topic, e-mail: users@tomcat.apache.org > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
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