[SOLR-10172] Sorl 6 with jetty issues

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Duplicate
• Fix Version/s: 6.4.2
• Assignee: Unassigned
• Reporter: Abc
• Created: 20/Feb/17 13:04
• Updated: 08/Jun/19 15:34
• Resolved: 20/Feb/17 16:52

Description

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 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

Bug :
In this version, there must be issue regarding cpu utilization.

Issue Links

• duplicates: SOLR-10130 Serious performance degradation in Solr 6.4.1 due to the new metrics collection