On Tue, Jun 25, 2013 at 10:13 PM, sulong <sulong1...@gmail.com> wrote: > I have 4 nodes cassandra cluster. Every node has 32G memory, and the > cassandra jvm uses 8G. The cluster is suffering from gc. Looks like > CompactionExecutor thread holds too many SSTableReader. See the attachement.
What version of Cassandra? What workload? Is compaction actually running? =Rob