[YARN-5368] Memory leak in timeline server

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.7.1
• Fix Version/s: 2.9.0, 3.0.0-alpha4, 2.8.2
• Component/s: timelineserver

Environment

HDP2.4
CentOS 6.7
jdk1.8.0_72

• Target Version/s: 2.9.0, 2.8.1, 3.0.0-alpha4
• Hadoop Flags: Reviewed
• Assignee: Jonathan Turner Eagles
• Reporter: Wataru Yukawa
• Created: 13/Jul/16 05:08
• Updated: 04/Dec/17 05:31
• Resolved: 28/Mar/17 20:34

Description

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

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 ...

ps command result

$ 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

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

 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 ...

I suspect memory leak at timeline server.

Issue Links

• relates to: YARN-7603 Memory leak in timeline server