Hello,
I know I've seen this issue discussed in a lot of places but I've yet to see a definitive solution. Here's our problem: we are running three instances of tomcat on our server. Two of them are running live webapps for two clients and one is for development. One app has been running for about a month and has been "hanging" (not accepting requests) more and more frequently (it's happening at least once a day). The second app has been running for a couple weeks and did not hang at first but has started to hang once in awhile and it appears to be happening more frequently. This does not seem to be related to usage as neither app is getting a lot of traffic when they go down. Here's our setup:
Red Hat Linux 9 Apache 2.0.49 Tomcat 5.0.19 Java 1.4.2
we are using mod_proxy to forward requests from apache to tomcat.
It went down this morning and we did a thread dump as was suggested elsewhere and couldn't find anything that was suspect. There is nothing in catalina.out to indicate why this is happening.
Someone here suggested that perhaps it has something to do with writing to catalina.out. This is legacy code and catalina.out is used for logging. The previous developers are logging every single SQL statement to catalina.out. This file is getting very, very large. Could this have anything to do with it?
Any help on this would be greatly appreciated as our customers are getting more and more annoyed. Thanks.
Matt Tucker thoughtbot
cell: 617 775 0742 office: 617 876 4780 www.thoughtbot.com
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