hi, where can i fidn the GC log? I am a newcomer. Thanks! beatls
On Wed, Sep 12, 2012 at 11:09 PM, Amlan Roy <[email protected]> wrote: > Hi, > > > > I was doing some load testing on my cluster. I am writing to HBase (version > 0.92.0) from 20 threads simultaneously. After running the program for some > time, one of my machines got unresponsive. I checked the GC log and found > occurrences of both "concurrent mode failure" and "promotion failed" on > that > machine. I have the following configuration in hbase-env.sh: > > > > export HBASE_REGIONSERVER_OPTS="$HBASE_REGIONSERVER_OPTS -Xmx4g -Xms4g > -Xmn128m -XX:+UseParNewGC -XX:+UseConcMarkSweepGC > -XX:CMSInitiatingOccupancyFraction=70 -verbose:gc -XX:+PrintGCDetails > -XX:+PrintGCTimeStamps -Xloggc:/data/gc-hbase.log" > > > > Please let me know if this configuration is incorrect. > > > > Regards, > > Amlan > >
