[jira] [Commented] (SPARK-6469) Local directories configured for YARN are not used in yarn-client mode

["Sean Owen (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-6469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14375976#comment-14375976 ] 

Sean Owen commented on SPARK-6469:
----------------------------------

So, if {{YARN_LOCAL_DIRS}} is set, then {{isRunningInYarnContainer}} is {{true}} and it uses this for the local dir. {{CONTAINER_ID}} is not relevant to this. What local directory are you expecting it to use, if {{YARN_LOCAL_DIRS}} isn't set?

> Local directories configured for YARN are not used in yarn-client mode
> ----------------------------------------------------------------------
>
>                 Key: SPARK-6469
>                 URL: https://issues.apache.org/jira/browse/SPARK-6469
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>            Reporter: Christophe PRÉAUD
>            Priority: Minor
>         Attachments: TestYarnVars.scala
>
>
> According to the [Spark YARN doc page|http://spark.apache.org/docs/latest/running-on-yarn.html#important-notes], Spark executors will use the local directories configured for YARN, not spark.local.dir which should be ignored.
> If this works correctly in yarn-cluster mode, I've found out that it is not the case in yarn-client mode.
> The problem seems to originate in the method [isRunningInYarnContainer|https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/util/Utils.scala#L686].
> Indeed, I've checked with a simple application that the {{CONTAINER_ID}} environment variable is correctly set in yarn-cluster mode (to something like {{container_1426666761810_0151_01_000001}}, but not in yarn-client mode.



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