Use Solr 6.3.0. For us, 6.4.x is using about 10X as much CPU under heavy query load.
wunder Walter Underwood wun...@wunderwood.org http://observer.wunderwood.org/ (my blog) > On Feb 20, 2017, at 5:11 AM, Michael Kuhlmann <k...@solr.info> wrote: > > This may be related to SOLR-10130. > > Am 20.02.2017 um 14:06 schrieb ~$alpha`: >> Issues with solr settings while migrating from solr 4.0 to solr6.0. >> >> Issue Faced: My CPU consumption goes to unacceptable levels. ie. load on >> solr4.0 is between 6 to 10 while the load on solr 6 reaches 100 and since >> its the production i rolled back quickly. >> >> My Solr4 setting >> >> - Running on tomcat >> - JVM Memory : 16GB >> - 24 core cpu >> - JVM settings : >> - JVM Runtime Java HotSpot(TM) 64-Bit Server VM (24.45-b08) >> - Processors 24 >> - Args : Paths mentioned here >> >> >> **My Solr6 setting** >> >> - Running on jetty >> - JVM Memory : 20GB >> - 32 core cpu >> - JVM settings : >> - Oracle Corporation Java HotSpot(TM) 64-Bit Server VM 1.8.0_45 25.45-b02 >> - Processors 32 >> - Args >> - DSTOP.KEY=solrrocks >> - DSTOP.PORT=7983 >> - Djetty.home=/usr/local/solr-6.4.1/server-Djetty.port=8983 >> - >> Dlog4j.configuration=file:/usr/local/solr-6.4.1/example/resources/log4j.properties >> - >> Dsolr.install.dir=/usr/local/solr-6.4.1-Dsolr.log.dir=/usr/local/solr-6.4.1/example/techproducts/solr/../logs >> - Dsolr.log.muteconsole >> - >> Dsolr.solr.home=/usr/local/solr-6.4.1/example/techproducts/solr-Duser.timezone=US/Eastern >> - XX:+AggressiveOpts >> - XX:+CMSParallelRemarkEnabled >> - XX:+CMSScavengeBeforeRemark >> - XX:+ParallelRefProcEnabled >> - XX:+PrintGCApplicationStoppedTime >> - XX:+PrintGCDateStamps >> - XX:+PrintGCDetails >> - XX:+PrintGCTimeStamps >> - XX:+PrintHeapAtGC >> - XX:+PrintTenuringDistribution >> - XX:+UseCMSInitiatingOccupancyOnly >> - XX:+UseConcMarkSweepGC >> - XX:+UseGCLogFileRotation >> - XX:-UseSuperWord >> - XX:CMSFullGCsBeforeCompaction=1 >> - XX:CMSInitiatingOccupancyFraction=70 >> - XX:CMSMaxAbortablePrecleanTime=6000 >> - XX:CMSTriggerPermRatio=80 >> - XX:GCLogFileSize=20M >> - XX:MaxTenuringThreshold=8 >> - XX:NewRatio=2 >> - XX:NumberOfGCLogFiles=9 >> - XX:OnOutOfMemoryError=/usr/local/solr-6.4.1/bin/oom_solr.sh 8983 >> /usr/local/solr-6.4.1/example/techproducts/solr/../logs >> - XX:PretenureSizeThreshold=64m >> - XX:SurvivorRatio=15 >> - >> XX:TargetSurvivorRatio=90-Xloggc:/usr/local/solr-6.4.1/example/techproducts/solr/../logs/solr_gc.log-Xms21g-Xmx21g-Xss256k-verbose:gc >> What i looking for >> >> My guess its related to gc setting of jetty as i am not expert in >> jetty(java8).please help how to tune these settings. Also how should i >> chosoe these values or how to to debug these issue ? >> >> >> >> -- >> View this message in context: >> http://lucene.472066.n3.nabble.com/Sorl-6-with-jetty-issues-tp4321291.html >> Sent from the Solr - User mailing list archive at Nabble.com. > >
