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https://issues.apache.org/jira/browse/YARN-2624?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Anubhav Dhoot updated YARN-2624:
--------------------------------
    Attachment: YARN-2624.001.patch

Attaching a patch that cleans up the local resource cache directories when the 
statestore is built up first time. That would take care of cleanup of leftover 
directories when moving from non-work preserving to work preserving in most 
cases. There can still be failures in NM in between creating state and running 
the cleanup.

> Resource Localization fails on a cluster due to existing cache directories
> --------------------------------------------------------------------------
>
>                 Key: YARN-2624
>                 URL: https://issues.apache.org/jira/browse/YARN-2624
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.5.1
>            Reporter: Anubhav Dhoot
>            Assignee: Anubhav Dhoot
>            Priority: Blocker
>         Attachments: YARN-2624.001.patch
>
>
> We have found resource localization fails on a cluster with following error 
> in certain cases.
> {noformat}
> INFO 
> org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService:
>  Failed to download rsrc { { 
> hdfs://<blahhostname>:8020/tmp/hive-hive/hive_2014-09-29_14-55-45_184_6531377394813896912-12/-mr-10004/95a07b90-2448-48fc-bcda-cdb7400b4975/map.xml,
>  1412027745352, FILE, null 
> },pending,[(container_1411670948067_0009_02_000001)],443533288192637,DOWNLOADING}
> java.io.IOException: Rename cannot overwrite non empty destination directory 
> /data/yarn/nm/filecache/27
>       at 
> org.apache.hadoop.fs.AbstractFileSystem.renameInternal(AbstractFileSystem.java:716)
>       at org.apache.hadoop.fs.FilterFs.renameInternal(FilterFs.java:228)
>       at 
> org.apache.hadoop.fs.AbstractFileSystem.rename(AbstractFileSystem.java:659)
>       at org.apache.hadoop.fs.FileContext.rename(FileContext.java:906)
>       at org.apache.hadoop.yarn.util.FSDownload.call(FSDownload.java:366)
>       at org.apache.hadoop.yarn.util.FSDownload.call(FSDownload.java:59)
> {noformat}



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