Hi ho folks!
I recently upgraded jspwiki.org to run under JDK 1.6.0_3, but
unfortunately that turned out to be a mistake: apparently there are
stability issues with it, since after that, the wiki engine became
unresponsive every six-to-twelve hours. I have a script which pings
jspwiki.org every 20 minutes, and if it's not responding within 30
seconds, it kills and restarts the underlying process.
Yesterday, I went back to 1.5.0_6, and the problems disappeared.
This all is on Ubuntu 6.06, and no, I can't tell you what caused the
unresponsiveness. The heap is pretty full, so this could be a GC
issue, but I ran both with and without -XX:ConcurrentGC, and there
was no difference. jspwiki.org and ecyrd.com which are both running
under the same VM are both pretty heavily loaded (about 1 hit/second
on each).
Anybody have any similar experiences?
/Janne
