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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2790) Add high availability support for Yarn
Date Mon, 05 Oct 2015 07:34:26 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2790?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14943008#comment-14943008
] 

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

Github user tillrohrmann commented on the pull request:

    https://github.com/apache/flink/pull/1213#issuecomment-145450115
  
    I think TMs are only kept alive if their containers have been properly started. If the
AM happens to die while the TM container are started up, I think they will be terminated as
well. Another question is how did you kill the AM and what do you mean with "[...] restarting
properly. But I think that's not the expected behavior"? 


> 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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