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https://issues.apache.org/jira/browse/FLINK-5512?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15825818#comment-15825818
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ASF GitHub Bot commented on FLINK-5512:
---------------------------------------

GitHub user tzulitai opened a pull request:

    https://github.com/apache/flink/pull/3136

    [FLINK-5512] [doc] Improve RabbitMQ documentation

    Added information about non-parallel restriction for RabbitMQ source in 
order to achieve exactly-once.
    Also attempted to overall improve the documentation.

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

    $ git pull https://github.com/tzulitai/flink FLINK-5512

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

    https://github.com/apache/flink/pull/3136.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 #3136
    
----
commit 00a38fc4cf8cb05c2a22925328adcae6dd749f41
Author: Tzu-Li (Gordon) Tai <tzuli...@apache.org>
Date:   2017-01-17T10:38:50Z

    [FLINK-5512] [doc] Improve RabbitMQ documentation

----


> RabbitMQ documentation should inform that exactly-once holds for RMQSource 
> only when parallelism is 1  
> -------------------------------------------------------------------------------------------------------
>
>                 Key: FLINK-5512
>                 URL: https://issues.apache.org/jira/browse/FLINK-5512
>             Project: Flink
>          Issue Type: Improvement
>          Components: Documentation
>            Reporter: Tzu-Li (Gordon) Tai
>            Assignee: Tzu-Li (Gordon) Tai
>             Fix For: 1.2.0
>
>
> See here for the reasoning: FLINK-2624. We should add an informative warning 
> about this limitation in the docs.



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