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https://issues.apache.org/jira/browse/FLINK-9190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16445315#comment-16445315
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ASF GitHub Bot commented on FLINK-9190:
---------------------------------------

GitHub user sihuazhou opened a pull request:

    https://github.com/apache/flink/pull/5881

    [FLINK-9190][yarn] fix YarnResourceManager sometimes does not request new 
Containers

    ## What is the purpose of the change
    
    This PR fixes the problem that `YarnResourceManager` does not request new 
Containers when container were killed without registering with 
`ResourceManager`.
    
    ## Brief change log
    
      - *fix YarnResourceManager sometimes does not request new Containers*
    
    ## Verifying this change
    
      - *add unit test to 
`YarnResourceManagerTest#testKillContainerBeforeTMRegisterSuccessfully()` 
verify this*
    
    ## Does this pull request potentially affect one of the following parts:
    
      - Dependencies (does it add or upgrade a dependency): (no)
      - The public API, i.e., is any changed class annotated with 
`@Public(Evolving)`: (no)
      - The serializers: (no)
      - The runtime per-record code paths (performance sensitive): (no)
      - Anything that affects deployment or recovery: JobManager (and its 
components), Checkpointing, Yarn/Mesos, ZooKeeper: (*yes*)
      - The S3 file system connector: (no)
    
    ## Documentation
    
    no

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/sihuazhou/flink 
fixYarnResourceManagerRequestContainers

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/flink/pull/5881.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #5881
    
----
commit bbf03ca7fc709e11627560466bff01b9e750bbd2
Author: sihuazhou <summerleafs@...>
Date:   2018-04-20T05:02:28Z

    fix YarnResourceManager sometimes does not request new Containers

----


> YarnResourceManager sometimes does not request new Containers
> -------------------------------------------------------------
>
>                 Key: FLINK-9190
>                 URL: https://issues.apache.org/jira/browse/FLINK-9190
>             Project: Flink
>          Issue Type: Bug
>          Components: Distributed Coordination, YARN
>    Affects Versions: 1.5.0
>         Environment: Hadoop 2.8.3
> ZooKeeper 3.4.5
> Flink 71c3cd2781d36e0a03d022a38cc4503d343f7ff8
>            Reporter: Gary Yao
>            Assignee: Sihua Zhou
>            Priority: Blocker
>              Labels: flip-6
>             Fix For: 1.5.0
>
>         Attachments: yarn-logs
>
>
> *Description*
> The {{YarnResourceManager}} does not request new containers if 
> {{TaskManagers}} are killed rapidly in succession. After 5 minutes the job is 
> restarted due to {{NoResourceAvailableException}}, and the job runs normally 
> afterwards. I suspect that {{TaskManager}} failures are not registered if the 
> failure occurs before the {{TaskManager}} registers with the master. Logs are 
> attached; I added additional log statements to 
> {{YarnResourceManager.onContainersCompleted}} and 
> {{YarnResourceManager.onContainersAllocated}}.
> *Expected Behavior*
> The {{YarnResourceManager}} should recognize that the container is completed 
> and keep requesting new containers. The job should run as soon as resources 
> are available. 



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