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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2790) Add high availability support for Yarn
Date Wed, 07 Oct 2015 10:42:26 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2790?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14946657#comment-14946657
] 

ASF GitHub Bot commented on FLINK-2790:
---------------------------------------

Github user uce commented on the pull request:

    https://github.com/apache/flink/pull/1213#issuecomment-146150504
  
    The code looks good. :-) I like the changes around the testing classes and the changes
to the retrieval utils (that one I've looked into in more detail). I didn't check the YARN
logic in detail though. I'm going to try it out now locally and report back. I expect that
to work just fine and then we can safely merge this I think. :)


> Add high availability support for Yarn
> --------------------------------------
>
>                 Key: FLINK-2790
>                 URL: https://issues.apache.org/jira/browse/FLINK-2790
>             Project: Flink
>          Issue Type: Sub-task
>          Components: JobManager, TaskManager
>            Reporter: Till Rohrmann
>             Fix For: 0.10
>
>
> Add master high availability support for Yarn. The idea is to let Yarn restart a failed
application master in a new container. For that, we set the number of application retries
to something greater than 1. 
> From version 2.4.0 onwards, it is possible to reuse already started containers for the
TaskManagers, thus, avoiding unnecessary restart delays.
> From version 2.6.0 onwards, it is possible to specify an interval in which the number
of application attempts have to be exceeded in order to fail the job. This will prevent long
running jobs from eventually depleting all available application attempts.



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