[jira] [Commented] (FLINK-9413) Tasks can fail with PartitionNotFoundException if consumer deployment takes too long

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-9413?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16495089#comment-16495089 ] 

ASF GitHub Bot commented on FLINK-9413:
---------------------------------------

GitHub user zhangminglei opened a pull request:

    https://github.com/apache/flink/pull/6103

    [FLINK-9413] [distributed coordination] Tasks can fail with Partition…

    …NotFoundException if consumer deployment takes too long
    
    ## What is the purpose of the change
    Tasks can fail with PartitionNotFoundException if consumer deployment takes too long. And the producer has been assigned a slot but we do not wait until it is actually running.
    
    ## Brief change log
    Change the condition to make the producer wait until it is actually running.
    
    ## Verifying this change
    
    This change is a trivial rework / code cleanup without any test coverage.

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

    $ git pull https://github.com/zhangminglei/flink flink-9413

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

    https://github.com/apache/flink/pull/6103.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 #6103
    
----
commit a52434d14117fde4e911f9a8f81a2e10fdd9ba77
Author: zhangminglei <zm...@...>
Date:   2018-05-30T12:17:17Z

    [FLINK-9413] [distributed coordination] Tasks can fail with PartitionNotFoundException if consumer deployment takes too long

----


> Tasks can fail with PartitionNotFoundException if consumer deployment takes too long
> ------------------------------------------------------------------------------------
>
>                 Key: FLINK-9413
>                 URL: https://issues.apache.org/jira/browse/FLINK-9413
>             Project: Flink
>          Issue Type: Bug
>          Components: Distributed Coordination
>    Affects Versions: 1.4.0, 1.5.0, 1.6.0
>            Reporter: Till Rohrmann
>            Assignee: mingleizhang
>            Priority: Critical
>
> {{Tasks}} can fail with a {{PartitionNotFoundException}} if the deployment of the producer takes too long. More specifically, if it takes longer than the {{taskmanager.network.request-backoff.max}}, then the {{Task}} will give up and fail.
> The problem is that we calculate the {{InputGateDeploymentDescriptor}} for a consuming task once the producer has been assigned a slot but we do not wait until it is actually running. The problem should be fixed if we wait until the task is in state {{RUNNING}} before assigning the result partition to the consumer.



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