My solr+jetty+java6 install seems to work well with these GC options.
It's a dual processor environment:
-XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode
I've never had a real problem with memory, so I've not done any kind of
auditing. I probably should, but time is a limited resource.
Shawn
On 3/14/2011 2:29 PM, Markus Jelsma wrote:
That depends on your GC settings and generation sizes. And, instead of
UseParallelGC you'd better use UseParNewGC in combination with CMS.
See 22: http://java.sun.com/docs/hotspot/gc1.4.2/faq.html
It's actually, as I understand it, expected JVM behavior to see the heap
rise to close to it's limit before it gets GC'd, that's how Java GC
works. Whether that should happen every 20 seconds or what, I don't nkow.
Another option is setting better JVM garbage collection arguments, so GC
doesn't "stop the world" so often. I have had good luck with my Solr
using this: -XX:+UseParallelGC
