* mark harwood: > Thanks, I have a heap dump now from a run with reduced JVM memory > (in order to speed up a failure point) and am working through it > offline with VisualVm.
> This test induced a proper OOM as opposed to one of those "timed out > waiting for GC " type OOMs so may be misleading. It wouldn't be unusual if the same root cause sometimes results in a straight OOM, sometimes in the time-out variant. > I have another run soldiering on with the -XX:-UseGCOverheadLimit > setting to avoid GC -related timeouts and this has not hit OOM but > is slowing to a crawl. You could try to enable hprof and get a heap dump when you terminate the VM with SIGINT/^C. In the end, you probably have to do this with a realisticly-sized run to get good data. --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org