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.


Reply via email to