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From "Varun Saxena (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2902) Killing a container that is localizing can orphan resources in the DOWNLOADING state
Date Mon, 05 Oct 2015 19:47:27 GMT

    [ https://issues.apache.org/jira/browse/YARN-2902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14943918#comment-14943918
] 

Varun Saxena commented on YARN-2902:
------------------------------------

The new patch does the following over the last patch :
# Removed additional param in container executor to ignore missing directory. Now this will
be the default behaviour
# The patch no longer cancels the deletion task in NM
# Localizer wont send the extra heartbeat which it was sending to NM if NM had indicated it
to DIE.
# Do not wait in localizer for cancelled task to complete on DIE.

> Killing a container that is localizing can orphan resources in the DOWNLOADING state
> ------------------------------------------------------------------------------------
>
>                 Key: YARN-2902
>                 URL: https://issues.apache.org/jira/browse/YARN-2902
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager
>    Affects Versions: 2.5.0
>            Reporter: Jason Lowe
>            Assignee: Varun Saxena
>         Attachments: YARN-2902.002.patch, YARN-2902.03.patch, YARN-2902.04.patch, YARN-2902.05.patch,
YARN-2902.06.patch, YARN-2902.07.patch, YARN-2902.patch
>
>
> If a container is in the process of localizing when it is stopped/killed then resources
are left in the DOWNLOADING state.  If no other container comes along and requests these resources
they linger around with no reference counts but aren't cleaned up during normal cache cleanup
scans since it will never delete resources in the DOWNLOADING state even if their reference
count is zero.



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