Actually, 64G is on the high side, GC pauses can kill you pretty easily in that range.
If it's at all possible to cut that down it would be A Good Thing.... Best, Erick On Mon, Apr 2, 2018 at 12:56 PM, murugesh karmegam <kmak...@gmail.com> wrote: > Hi Yago Riveiro , > > Thanks for the reply. We have heap size 64G. Any more is not recommended > right? Except one time I was not able to co relate "updates disabled" with > GC pause. Also zk timeout is 120 seconds even with long GC pause (more than > 10 seconds normally) we should recover right? > > JVM settings > > /usr/java/latest/bin/java -server -Xms32g -Xmx64g > -DsharedLib=/opt/mw/solrlib -XX:+UseG1GC -XX:MaxGCPauseMillis=5000 > -XX:ParallelGCThreads=30 -XX:ConcGCThreads=10 -Djute.maxbuffer=41943040 > -XX:G1HeapWastePercent=20 -XX:InitiatingHeapOccupancyPercent=45 > -XX:+UnlockExperimentalVMOptions -XX:NewSize=10g -XX:MaxNewSize=32g > -XX:SurvivorRatio=2 -XX:-ResizePLAB -XX:+AlwaysPreTouch > -XX:+ParallelRefProcEnabled -server > -Xloggc:/var/log/solr/gc-solr2018-03-27-19-16.log -verbose:gc > -XX:+PrintHeapAtGC -XX:+PrintGCDetails -XX:+PrintGCDateStamps > -XX:+PrintGCTimeStamps -XX:+PrintTenuringDistribution > -XX:+PrintGCApplicationStoppedTime -XX:+UseGCLogFileRotation > -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=64m > -XX:+PrintSafepointStatistics -XX:PrintSafepointStatisticsCount=1 > -Xloggc:/var/log/solr/solr_gc.log -XX:+UseGCLogFileRotation > -XX:NumberOfGCLogFiles=9 -XX:GCLogFileSize=20M > -Dcom.sun.management.jmxremote > -Dcom.sun.management.jmxremote.local.only=false > -Dcom.sun.management.jmxremote.ssl=false > -Dcom.sun.management.jmxremote.authenticate=false > -Dcom.sun.management.jmxremote.port=18983 > -Dcom.sun.management.jmxremote.rmi.port=18983 > -Djava.rmi.server.hostname=tr3slr3dn27 -DzkClientTimeout=120000 -Dzkhost > .../solr -Dsolr.log.dir=/var/log/solr -Djetty.port=8983 -DSTOP.PORT=7983 > -DSTOP.KEY=solrrocks -Dhost=tr3slr3dn27 -Duser.timezone=EST > -Djetty.home=/opt/solr/server -Dsolr.solr.home=/data0/solr > -Dsolr.install.dir=/opt/solr > -Dlog4j.configuration=file:/etc/solr/conf/log4j.properties -Xss256k > -Dsolr.autoSoftCommit.maxTime=300000 -Dsolr.autoCommit.maxTime=600000 > -Dsolr.clustering.enabled=false -DsharedLib=/opt/mw/solrlib > -Dsolr.lock.type=native -XX:MetaspaceSize=1024m -XX:MaxMetaspaceSize=1024m > -XX:MinMetaspaceExpansion=16m -XX:MaxMetaspaceExpansion=32m -Xss256k > -Dsolr.log.muteconsole -XX:OnOutOfMemoryError=/opt/solr/bin/oom_solr.sh 8983 > /var/log/solr -jar start.jar --module=http > > > > just to give more idea... > we are a 48 node cluster with each node having indexes (many together) up to > 900GB to 1TB and one major index is with 48 shards with each shard is 80 - > 85 G = approx 4TB > > > > -- > Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html
