-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Bill,
On 1/23/14, 8:08 PM, Bill Davidson wrote: > On 12/11/2013 11:42 PM, André Warnier wrote: >> The original issue of the OP was to be notified ASAP when an OOM >> occurs. And he indicated that an OOM resulted in a message in the >> logs. So, "something" is already catching the OOM exception, to >> write this line in the logs. >> >> On the other hand, there is ample literature available that seems >> to indicate that any method for trying to recover from (or even >> do something worthwhile after) an OOM is ultimately flawed and >> unreliable. > > We have a lot of servlets and JSP's. Most of them do not use huge > amounts of memory but a few do (like reports). When there is a > memory leak, the first thing to get an OOME will be something that > uses a large amount of memory. That request will die, but the > rest of the requests that don't use a lot of memory will have > plenty of space for a while. > > I implemented the filter, and it works in my testing. I also > implemented the command line jvm option which works but only gives > me the first OOME. The command line option works no matter what > and the filter works as long as it doesn't run out of memory > generating the email message. > > We'll see how it all works after it gets deployed to our production > systems in a few weeks. Our product is mature enough that we've > fixed memory leaks to the point that we normally go many months > without any OOME's so it could be a while before this actually > kicks in for a real operating situation. > > Thanks to Christopher for the ideas. They were very helpful. Glad to see my thoughts were useful. If you'd care to post your code to either the list or onto the wiki, I'm sure it would be useful to someone. Feel free to trim-out huge sections of the code and say "make this fit your environment", etc. if you don't want to show everyone how bad your email-assembling code looks ;) - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJS4cAdAAoJEBzwKT+lPKRYsv4QALn+ShovWg71Ucxi/43gaGfE u8yTIH9XGwjOb1XBe/Jp6AS63GBFf/QJrkYeiR9UejcOKxBoXjxDg5sDApVfljk0 +/oxolY8ehhe8LRxR3YOuV1k+yNbzrErIKdJUZ281Hk7NDkuhNePPYp6B9/AJAto 5mFh+Y/1ZADNwqA1i1T22GfM4IbCnh/mKbYQdNoEVGQ3b3ISw1Ct/hMkV0lX+DPY JWCA2XADEtQkOK/3UPfhvtdzhYibbtYQm4MwIgtiFEyuV0LC1po1Pk09IT8f0agr eMW5zgNT4KuQ/Qv1zX6oLXVNsLKbLQ+Jd/s4H2GP8IOdc+ASSR6SV6UvjojbU+W4 QvScs1iCYul3Gx70E0JZDOh25+aIMIcLWKz6P0u6Yuo5J3ExiGVZuHcHYSQxtom9 f+uwdweY19Qp9YN+7wLHhrGDwsIBvxKlFgINBSz5fbkblA66K05V/mKSPrjngg2Y 8zn0UJpUCIYdPkKzsg1JwZQvd/8kEV3Qrz2PekF/k6JF/S3LN+nBpLSc+5shtxXv od2cfnpssnSHpKTwTB85ZdrgA/mwkiRuqNdDWQMFt+CIx4+u5Lk6ZrZ2YCLEEpWz fSZK0/QOW3TDa9WgpguQ5wwfRPqLV7Q30/6bNyBMer35+2E8A0Fee7kUgLkEpxzl lBumesN28J4jpIKGTAfo =IEBs -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
