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https://issues.apache.org/jira/browse/YARN-5368?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15374413#comment-15374413
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Wataru Yukawa commented on YARN-5368:
-------------------------------------
Thank you for comment.
I point out 6th column(RSS), not 5th column VSZ(28.4g) .
RSS is 25GB.
>Are you facing any particular impact from this
now, nothing.
but I'm afraid memory shortage.
lsof -p `pgrep -f timeline` is the following.
https://gist.github.com/wyukawa/36ccfde48f118bb1e8e4f2564d4ecc2a
thanks
> memory leak at timeline server
> ------------------------------
>
> Key: YARN-5368
> URL: https://issues.apache.org/jira/browse/YARN-5368
> Project: Hadoop YARN
> Issue Type: Bug
> Components: timelineserver
> Affects Versions: 2.7.1
> Environment: HDP2.4
> CentOS 6.7
> jdk1.8.0_72
> Reporter: Wataru Yukawa
>
> memory usage of timeline server machine increases gradually.
> https://gyazo.com/952dad96c77ae053bae2e4d8c8ab0572
> please check since April.
> According to my investigation, timeline server used about 25GB.
> top command result
> {code}
> 90577 yarn 20 0 28.4g 25g 12m S 0.0 40.1 5162:53
> /usr/java/jdk1.8.0_72/bin/java -Dproc_timelineserver -Xmx1024m
> -Dhdp.version=2.4.0.0-169 -Dhadoop.log.dir=/var/log/hadoop-yarn/yarn
> -Dyarn.log.dir=/var/log/hadoop-yarn/yarn ...
> {code}
> ps command result
> {code}
> $ ps ww 90577
> 90577 ? Sl 5162:53 /usr/java/jdk1.8.0_72/bin/java
> -Dproc_timelineserver -Xmx1024m -Dhdp.version=2.4.0.0-169
> -Dhadoop.log.dir=/var/log/hadoop-yarn/yarn
> -Dyarn.log.dir=/var/log/hadoop-yarn/yarn
> -Dhadoop.log.file=yarn-yarn-timelineserver-myhost.log
> -Dyarn.log.file=yarn-yarn-timelineserver-myhost.log -Dyarn.home.dir=
> -Dyarn.id.str=yarn -Dhadoop.root.logger=INFO,EWMA,RFA
> -Dyarn.root.logger=INFO,EWMA,RFA
> -Djava.library.path=:/usr/hdp/2.4.0.0-169/hadoop/lib/native/Linux-amd64-64:/usr/hdp/2.4.0.0-169/hadoop/lib/native:/var/lib/ambari-agent/tmp/hadoop_java_io_tmpdir:/usr/hdp/2.4.0.0-169/hadoop/lib/native/Linux-amd64-64:/usr/hdp/2.4.0.0-169/hadoop/lib/native:/var/lib/ambari-agent/tmp/hadoop_java_io_tmpdir
> -Dyarn.policy.file=hadoop-policy.xml
> -Djava.io.tmpdir=/var/lib/ambari-agent/tmp/hadoop_java_io_tmpdir
> -Dhadoop.log.dir=/var/log/hadoop-yarn/yarn
> -Dyarn.log.dir=/var/log/hadoop-yarn/yarn
> -Dhadoop.log.file=yarn-yarn-timelineserver-myhost.log
> -Dyarn.log.file=yarn-yarn-timelineserver-myhost.log
> -Dyarn.home.dir=/usr/hdp/current/hadoop-yarn-timelineserver
> -Dhadoop.home.dir=/usr/hdp/2.4.0.0-169/hadoop
> -Dhadoop.root.logger=INFO,EWMA,RFA -Dyarn.root.logger=INFO,EWMA,RFA
> -Djava.library.path=:/usr/hdp/2.4.0.0-169/hadoop/lib/native/Linux-amd64-64:/usr/hdp/2.4.0.0-169/hadoop/lib/native:/var/lib/ambari-agent/tmp/hadoop_java_io_tmpdir:/usr/hdp/2.4.0.0-169/hadoop/lib/native/Linux-amd64-64:/usr/hdp/2.4.0.0-169/hadoop/lib/native:/var/lib/ambari-agent/tmp/hadoop_java_io_tmpdir
> -classpath
> /usr/hdp/2.4.0.0-169/hadoop/conf:/usr/hdp/2.4.0.0-169/hadoop/conf:/usr/hdp/2.4.0.0-169/hadoop/conf:/usr/hdp/2.4.0.0-169/hadoop/lib/*:/usr/hdp/2.4.0.0-169/hadoop/.//*:/usr/hdp/2.4.0.0-169/hadoop-hdfs/./:/usr/hdp/2.4.0.0-169/hadoop-hdfs/lib/*:/usr/hdp/2.4.0.0-169/hadoop-hdfs/.//*:/usr/hdp/2.4.0.0-169/hadoop-yarn/lib/*:/usr/hdp/2.4.0.0-169/hadoop-yarn/.//*:/usr/hdp/2.4.0.0-169/hadoop-mapreduce/lib/*:/usr/hdp/2.4.0.0-169/hadoop-mapreduce/.//*::/usr/hdp/2.4.0.0-169/tez/*:/usr/hdp/2.4.0.0-169/tez/lib/*:/usr/hdp/2.4.0.0-169/tez/conf:/usr/hdp/2.4.0.0-169/tez/*:/usr/hdp/2.4.0.0-169/tez/lib/*:/usr/hdp/2.4.0.0-169/tez/conf:/usr/hdp/current/hadoop-yarn-timelineserver/.//*:/usr/hdp/current/hadoop-yarn-timelineserver/lib/*:/usr/hdp/2.4.0.0-169/hadoop/conf/timelineserver-config/log4j.properties
>
> org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryServer
> {code}
>
> Alghough I set -Xmx1024m, actual memory usage is 25GB.
> After I restart timeline server, memory usage of timeline server machine
> decreases.
> https://gyazo.com/130600c17a7d41df8606727a859ae7e3
> Now timelineserver uses less than 1GB memory.
> top command result
> {code}
> 6163 yarn 20 0 3959m 783m 46m S 0.3 1.2 3:37.60
> /usr/java/jdk1.8.0_72/bin/java -Dproc_timelineserver -Xmx1024m
> -Dhdp.version=2.4.0.0-169 ...
> {code}
> I suspect memory leak at timeline server.
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