RegionSevevers repeatedly getting killed with GC Pause and Zookeeper timeout

Mon, 12 Dec 2016 22:24:07 -0800 

Hi,


>From past one week multiple regionservers are getting killed due to GC pause 
>and zookeeper timeouts exceptions.

We are trying to tune GC values with different HBASE_OPTS, but no luck.


Following is our regionserver configuration:

  *   Hardware: 24GB RAM with 8 Cores
  *
hbase-env.sh configuration:
export HBASE_STOP_TIMEOUT="180"
export HBASE_OPTS="$HBASE_OPTS -XX:+HeapDumpOnOutOfMemoryError -XX:+UseParNewGC 
-XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=70 -Xmn256m 
-XX:+UseCMSInitiatingOccupancyOnly"
export HBASE_OPTS="$HBASE_OPTS -XX:MaxNewSize=128m -XX:NewSize=128m"
export HBASE_REGIONSERVER_OPTS="-Xmx5g -Xms5g"
export HBASE_OPTS="$HBASE_OPTS -XX:MaxDirectMemorySize=5g"
export HBASE_MANAGES_ZK=falseexport HBASE_HEAPSIZE=4096

  *   zookeeper tickTime=2000

Thanks,
Sandeep.

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