You're gonna want to use java7 and the G1 collector with a heap that high. I'm surprised you aren't seeing other issues.
It's possible that with the added CPU load from the compactions, the garbage collector is not able to keep up and must do a full clean. On Wednesday, August 20, 2014, yanivG <[email protected]> wrote: > Yes. > The RegionServer cmd arguments are: > /usr/java/latest//bin/java -XX:OnOutOfMemoryError=kill -9 %p -Xmx30720m > -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+UseNUMA > -XX:CMSInitiatingOccupancyFraction=60 -ea -XX:+HeapDumpOnOutOfMemoryError > -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+UseNUMA > -XX:CMSInitiatingOccupancyFraction=60 -ea -XX:+HeapDumpOnOutOfMemoryError > > > free -g output: > total used free shared > buffers cached > Mem: 126 114 11 0 0 > 90 > -/+ buffers/cache: 23 102 > Swap: 9 0 9 > > meminfo > > MemTotal: 132145596 kB > MemFree: 11875380 kB > Buffers: 359804 kB > Cached: 94909280 kB > SwapCached: 0 kB > Active: 69301468 kB > Inactive: 47497184 kB > Active(anon): 18676840 kB > Inactive(anon): 2858304 kB > Active(file): 50624628 kB > Inactive(file): 44638880 kB > > > > > > > > -- > View this message in context: > http://apache-hbase.679495.n3.nabble.com/GC-peaks-during-major-compaction-tp4062704p4062930.html > Sent from the HBase User mailing list archive at Nabble.com. >
