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https://issues.apache.org/jira/browse/SPARK-1719?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14129740#comment-14129740
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Guoqiang Li commented on SPARK-1719:
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[~wilfreds]
The relevant code in
[ExecutorRunnableUtil.scala#L62|https://github.com/witgo/spark/blob/SPARK-1720/yarn/common/src/main/scala/org/apache/spark/deploy/yarn/ExecutorRunnableUtil.scala#L62]
{code}
sys.props.get("spark.executor.extraLibraryPath").foreach { p =>
val libraryPath = Seq(p, Utils.libraryPath$).mkString(File.pathSeparator)
javaOpts += s"-Djava.library.path=$libraryPath"
}
{code}
eg: In linux
spark-defaults.conf =>
{noformat}
spark.executor.extraLibraryPath /usr/local/hadoop/lib
{noformat}
ExecutorRunnableUtil generated command line =>
{noformat}
java -server ... -Djava.library.path=/usr/local/hadoop/lib:$LD_LIBRARY_PATH
... org.apache.spark.executor.CoarseGrainedExecutorBackend
{noformat}
> spark.executor.extraLibraryPath isn't applied on yarn
> -----------------------------------------------------
>
> Key: SPARK-1719
> URL: https://issues.apache.org/jira/browse/SPARK-1719
> Project: Spark
> Issue Type: Sub-task
> Components: YARN
> Affects Versions: 1.0.0
> Reporter: Thomas Graves
> Assignee: Guoqiang Li
> Fix For: 1.1.0
>
>
> Looking through the code for spark on yarn I don't see that
> spark.executor.extraLibraryPath is being properly applied when it launches
> executors. It is using the spark.driver.libraryPath in the ClientBase.
> Note I didn't actually test it so its possible I missed something.
> I also think better to use LD_LIBRARY_PATH rather then -Djava.library.path.
> once java.library.path is set, it doesn't search LD_LIBRARY_PATH. In Hadoop
> we switched to use LD_LIBRARY_PATH instead of java.library.path. See
> https://issues.apache.org/jira/browse/MAPREDUCE-4072. I'll split this into
> separate jira.
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