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https://issues.apache.org/jira/browse/SPARK-15067?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Or resolved SPARK-15067.
-------------------------------
Resolution: Fixed
Assignee: Sean Owen
Fix Version/s: 2.0.0
Target Version/s: 2.0.0
> YARN executors are launched with fixed perm gen size
> ----------------------------------------------------
>
> Key: SPARK-15067
> URL: https://issues.apache.org/jira/browse/SPARK-15067
> Project: Spark
> Issue Type: Bug
> Components: YARN
> Affects Versions: 1.6.0, 1.6.1
> Reporter: Renato Falchi Brandão
> Assignee: Sean Owen
> Priority: Minor
> Fix For: 2.0.0
>
>
> It is impossible to change the executors max perm gen size using the property
> "spark.executor.extraJavaOptions" when you are running on YARN.
> When the JVM option "-XX:MaxPermSize" is set through the property
> "spark.executor.extraJavaOptions", Spark put it properly in the shell command
> that will start the JVM container but, in the ending of command, it sets
> again this option using a fixed value of 256m, as you can see in the log I've
> extracted:
> 2016-04-30 17:20:12 INFO ExecutorRunnable:58 -
> ===============================================================================
> YARN executor launch context:
> env:
> CLASSPATH ->
> {{PWD}}<CPS>{{PWD}}/__spark__.jar<CPS>$HADOOP_CONF_DIR<CPS>/usr/hdp/current/hadoop-client/*<CPS>/usr/hdp/current/hadoop-client/lib/*<CPS>/usr/hdp/current/hadoop-hdfs-client/*<CPS>/usr/hdp/current/hadoop-hdfs-client/lib/*<CPS>/usr/hdp/current/hadoop-yarn-client/*<CPS>/usr/hdp/current/hadoop-yarn-client/lib/*<CPS>/usr/hdp/mr-framework/hadoop/share/hadoop/mapreduce/*:/usr/hdp/mr-framework/hadoop/share/hadoop/mapreduce/lib/*:/usr/hdp/mr-framework/hadoop/share/hadoop/common/*:/usr/hdp/mr-framework/hadoop/share/hadoop/common/lib/*:/usr/hdp/mr-framework/hadoop/share/hadoop/yarn/*:/usr/hdp/mr-framework/hadoop/share/hadoop/yarn/lib/*:/usr/hdp/mr-framework/hadoop/share/hadoop/hdfs/*:/usr/hdp/mr-framework/hadoop/share/hadoop/hdfs/lib/*:/usr/hdp/current/hadoop/lib/hadoop-lzo-0.6.0.jar:/etc/hadoop/conf/secure
> SPARK_LOG_URL_STDERR ->
> http://xxxxx0668sl.xxxxx.br:8042/node/containerlogs/container_1456962126505_329993_01_000002/h_loadbd/stderr?start=-4096
> SPARK_YARN_STAGING_DIR -> .sparkStaging/application_1456962126505_329993
> SPARK_YARN_CACHE_FILES_FILE_SIZES -> 191719054,166
> SPARK_USER -> h_loadbd
> SPARK_YARN_CACHE_FILES_VISIBILITIES -> PUBLIC,PUBLIC
> SPARK_YARN_MODE -> true
> SPARK_YARN_CACHE_FILES_TIME_STAMPS -> 1459806496093,1459808508343
> SPARK_LOG_URL_STDOUT ->
> http://xxxxx0668sl.xxxxx.br:8042/node/containerlogs/container_1456962126505_329993_01_000002/h_loadbd/stdout?start=-4096
> SPARK_YARN_CACHE_FILES ->
> hdfs://xxxxx/user/datalab/hdp/spark/lib/spark-assembly-1.6.0.2.3.4.1-10-hadoop2.7.1.2.3.4.1-10.jar#__spark__.jar,hdfs://tlvcluster/user/datalab/hdp/spark/conf/hive-site.xml#hive-site.xml
> command:
> {{JAVA_HOME}}/bin/java -server -XX:OnOutOfMemoryError='kill %p' -Xms6144m
> -Xmx6144m '-XX:+PrintGCDetails' '-XX:MaxPermSize=1024M'
> '-XX:+PrintGCTimeStamps' -Djava.io.tmpdir={{PWD}}/tmp
> '-Dspark.akka.timeout=300000' '-Dspark.driver.port=62875'
> '-Dspark.rpc.askTimeout=300000' '-Dspark.rpc.lookupTimeout=300000'
> -Dspark.yarn.app.container.log.dir=<LOG_DIR> -XX:MaxPermSize=256m
> org.apache.spark.executor.CoarseGrainedExecutorBackend --driver-url
> spark://CoarseGrainedScheduler@10.125.81.42:62875 --executor-id 1 --hostname
> xxxxx0668sl.xxxxx.br --cores 1 --app-id application_1456962126505_329993
> --user-class-path file:$PWD/__app__.jar 1> <LOG_DIR>/stdout 2>
> <LOG_DIR>/stderr
> Analyzing the code is possible to see that all the options set in the
> property "spark.executor.extraJavaOptions" are enclosed, one by one, in
> single quotes (ExecutorRunnable.scala:151) before the launcher take the
> decision if a default value has to be provided or not for the option
> "-XX:MaxPermSize" (ExecutorRunnable.scala:202).
> This decision is taken examining all the options set and looking for a string
> starting with the value "-XX:MaxPermSize" (CommandBuilderUtils.java:328). If
> that value is not found, the default value is set.
> A string option starting without single quote will never be found, then, a
> default value will always be provided.
> A possible solution is change the source code of CommandBuilderUtils.java in
> the line 328:
> From-> if (arg.startsWith("-XX:MaxPermSize="))
> To-> if (arg.indexOf("-XX:MaxPermSize=") > -1)
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