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From "Tom Beerbower (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMBARI-16691) Atlas Integration : Extend Ambari with settings for Atlas environment configuration
Date Tue, 17 May 2016 22:35:12 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-16691?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tom Beerbower updated AMBARI-16691:
-----------------------------------
    Status: Patch Available  (was: In Progress)

> Atlas Integration : Extend Ambari with settings for Atlas environment configuration
> -----------------------------------------------------------------------------------
>
>                 Key: AMBARI-16691
>                 URL: https://issues.apache.org/jira/browse/AMBARI-16691
>             Project: Ambari
>          Issue Type: Bug
>            Reporter: Tom Beerbower
>            Assignee: Tom Beerbower
>
> In ATLAS-616, we uncovered problems with Atlas web service when testing queries at scale.
The investigation revealed a fix possible with tuning some GC parameters. ATLAS-616 suggests
the GC values in documentation.
> Default these settings in Ambari.
> The values we have recommended are all to be set in {{atlas-env.sh}} config file. They
are:
> Common for all JDKs:
> {code}
> #export ATLAS_SERVER_OPTS="-server -XX:SoftRefLRUPolicyMSPerMB=0 -XX:+CMSClassUnloadingEnabled
-XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled -XX:+PrintTenuringDistribution -XX:+HeapDumpOnOutOfMemoryError
-XX:HeapDumpPath=dumps/atlas_server.hprof -Xloggc:logs/gc-worker.log -verbose:gc -XX:+UseGCLogFileRotation
-XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=1m -XX:+PrintGCDetails -XX:+PrintHeapAtGC -XX:+PrintGCTimeStamps"
> {code}
> For JDK7:
> {code}
> #export ATLAS_SERVER_HEAP="-Xms15360m -Xmx15360m -XX:MaxNewSize=3072m -XX:PermSize=100M
-XX:MaxPermSize=512m"
> {code}
> For JDK8:
> {code}
> #export ATLAS_SERVER_HEAP="-Xms15360m -Xmx15360m -XX:MaxNewSize=5120m -XX:MetaspaceSize=100M
-XX:MaxMetaspaceSize=512m"
> {code}



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