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From Christophe Préaud (JIRA) <j...@apache.org>
Subject [jira] [Updated] (SPARK-6469) Improving documentation on YARN local directories usage
Date Tue, 24 Mar 2015 15:11:54 GMT

     [ https://issues.apache.org/jira/browse/SPARK-6469?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Christophe Préaud updated SPARK-6469:
-------------------------------------
    Summary: Improving documentation on YARN local directories usage  (was: The YARN driver
in yarn-client mode will not use the local directories configured for YARN )

> Improving documentation on YARN local directories usage
> -------------------------------------------------------
>
>                 Key: SPARK-6469
>                 URL: https://issues.apache.org/jira/browse/SPARK-6469
>             Project: Spark
>          Issue Type: Documentation
>          Components: YARN
>            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.
> However it should be noted that in yarn-client mode, though the executors will indeed
use the local directories configured for YARN, the driver will not, because it is not running
on the YARN cluster; the driver in yarn-client will use the local directories defined in {{spark.local.dir}}
> Can this please be clarified in the Spark YARN documentation above?



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