On Tue, Jun 18, 2013 at 10:33 AM, srmore <comom...@gmail.com> wrote: > But then shouldn't JVM C G it eventually ? I can still see Cassandra alive > and kicking but looks like the heap is locked up even after the traffic is > long stopped.
No, when GC system fails this hard it is often a permanent failure which requires a restart of the JVM. > nodetool -h localhost flush didn't do much good. This adds support to the idea that your heap is too full, and not full of memtables. You could try nodetool -h localhost invalidatekeycache, but that probably will not free enough memory to help you. =Rob