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https://issues.apache.org/jira/browse/FLINK-2111?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14718391#comment-14718391
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ASF GitHub Bot commented on FLINK-2111:
---------------------------------------

Github user mjsax commented on a diff in the pull request:

    https://github.com/apache/flink/pull/750#discussion_r38191972
  
    --- Diff: 
flink-clients/src/test/java/org/apache/flink/client/CliFrontendRunTest.java ---
    @@ -1,22 +1,16 @@
     /*
    - * Licensed to the Apache Software Foundation (ASF) under one
    - * or more contributor license agreements.  See the NOTICE file
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    - * "License"); you may not use this file except in compliance
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    - *
    - *     http://www.apache.org/licenses/LICENSE-2.0
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contributor license agreements. See the NOTICE
    + * file distributed with this work for additional information regarding 
copyright ownership. The ASF licenses this file
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not use this file except in compliance with the
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    --- End diff --
    
    Obviously it did. Travis is green. However, this reformatting should not 
have happened. I undo it.


> Add "stop" signal to cleanly shutdown streaming jobs
> ----------------------------------------------------
>
>                 Key: FLINK-2111
>                 URL: https://issues.apache.org/jira/browse/FLINK-2111
>             Project: Flink
>          Issue Type: Improvement
>          Components: Distributed Runtime, JobManager, Local Runtime, 
> Streaming, TaskManager, Webfrontend
>            Reporter: Matthias J. Sax
>            Assignee: Matthias J. Sax
>            Priority: Minor
>
> Currently, streaming jobs can only be stopped using "cancel" command, what is 
> a "hard" stop with no clean shutdown.
> The new introduced "stop" signal, will only affect streaming source tasks 
> such that the sources can stop emitting data and shutdown cleanly, resulting 
> in a clean shutdown of the whole streaming job.
> This feature is a pre-requirment for 
> https://issues.apache.org/jira/browse/FLINK-1929



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