Issue

• JON storage node java process is consuming very high cpu, the rhq-storage.log shows following messages during this time.

WARN [ScheduledTasks:1] 2015-03-18 12:03:43,130 GCInspector.java (line 142) Heap is 0.775731168696205 full.  You may need to reduce memtable and/or cache sizes.  Cassandra will now flush up to the two largest memtables to free up memory.  Adjust flush_largest_memtables_at threshold in cassandra.yaml if you don't want Cassandra to do this automatically

INFO [FlushWriter:40] 2015-03-18 13:08:16,546 Memtable.java (line 436) Completed flushing ../../../rhq-data/data/rhq/aggregate_metrics/rhq-aggregate_metrics-ic-4495-Data.db (1377091 bytes) for commitlog position ReplayPosition(segmentId=1426662370440, position=17473570)

• High CPU Spike after JON Upgrade 3.2.x to 3.3.0.