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https://issues.apache.org/jira/browse/METRON-1447?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Justin Leet updated METRON-1447:
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Fix Version/s: (was: Next + 1)
0.5.0
> Heap Size Not Set Correctly by MPack for ES 5.x
> -----------------------------------------------
>
> Key: METRON-1447
> URL: https://issues.apache.org/jira/browse/METRON-1447
> Project: Metron
> Issue Type: Bug
> Reporter: Nick Allen
> Assignee: Nick Allen
> Priority: Major
> Fix For: 0.5.0
>
>
> When setting the heap size in the MPack, the default settings defined by
> Elasticsearch are still carried through. This results in two sets of -Xms and
> -Xmx settings passed to the JVM running Elasticsearch.
> {code}
> [2017-12-04T15:58:12,385][INFO ][o.e.n.Node ] [ubuntu1] JVM arguments
> [-Xms2g, -Xmx2g, -XX:+UseConcMarkSweepGC,
> -XX:CMSInitiatingOccupancyFraction=75, -XX:+UseCMSInitiatingOccupancyOnly,
> -XX:+AlwaysPreTouch, -Xss1m, -Djava.awt.headless=true, -Dfile.encoding=UTF-8,
> -Djna.nosys=true, -Djdk.io.permissionsUseCanonicalPath=true,
> -Dio.netty.noUnsafe=true, -Dio.netty.noKeySetOptimization=true,
> -Dio.netty.recycler.maxCapacityPerThread=0,
> -Dlog4j.shutdownHookEnabled=false, -Dlog4j2.disable.jmx=true,
> -Dlog4j.skipJansi=true, -XX:+HeapDumpOnOutOfMemoryError, -verbose:gc,
> -Xloggc:/var/log/elasticsearch/elasticsearch_gc.log,
> -XX:-CMSConcurrentMTEnabled, -XX:+PrintGCDateStamps, -XX:+PrintGCDetails,
> -XX:+PrintGCTimeStamps,
> -XX:ErrorFile=/var/log/elasticsearch/elasticsearch_err.log,
> -XX:ParallelGCThreads=8, -Xms512m, -Xmx512m,
> -Des.path.home=/usr/share/elasticsearch]
> {code}
> I am not sure which setting the JVM chooses to keep or if the behavior is
> well-defined in this scenario. Either way, its confusing for a user.
> It seems that in ES 5.x the preferred method of setting the heap size is in
> `/etc/elasticsearch/jvm.options`. This is where the additional settings are
> originating from. If you comment out or delete the settings in this file,
> things work as expected.
>
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