hadoop-mapreduce-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Robert Joseph Evans (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3862) Nodemanager can appear to hang on shutdown due to lingering DeletionService threads
Date Tue, 21 Feb 2012 17:34:37 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13212756#comment-13212756
] 

Robert Joseph Evans commented on MAPREDUCE-3862:
------------------------------------------------

I do not know of an open ticket for this.  I assumed that most components should be doing
this anyways, because if the process crashes badly there is no guarantee that the files would
be deleted, so I assumed that it should have been part of their initial design.  If that is
not the case then yes we should file a JIRA for it.
                
> Nodemanager can appear to hang on shutdown due to lingering DeletionService threads
> -----------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3862
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3862
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2, nodemanager
>    Affects Versions: 0.23.1
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>             Fix For: 0.23.2
>
>         Attachments: MAPREDUCE-3862.patch, MAPREDUCE-3862.patch
>
>
> When a nodemanager attempts to shutdown cleanly, it's possible for it to appear to hang
due to lingering DeletionService threads.  This can occur when yarn.nodemanager.delete.debug-delay-sec
is set to a relatively large value and one or more containers executes on the node shortly
before the shutdown.
> The DeletionService is never calling {{setExecuteExistingDelayedTasksAfterShutdownPolicy()}}
on the ScheduledThreadPoolExecutor, and it defaults to waiting for all scheduled tasks to
complete before exiting.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message