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https://issues.apache.org/jira/browse/FLINK-6644?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16017552#comment-16017552
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ASF GitHub Bot commented on FLINK-6644:
---------------------------------------

GitHub user zentol opened a pull request:

    https://github.com/apache/flink/pull/3955

    [FLINK-6644] Don't register HUP signal handler on Windows

    No longer registers the HUP signal handler on Windows to reduce noise in 
the logs as it is not available on windows.

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

    $ git pull https://github.com/zentol/flink 6644_hup_windows

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

    https://github.com/apache/flink/pull/3955.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 #3955
    
----
commit 5e972db09853ee7d192ff21b0dc369595b0489ec
Author: zentol <ches...@apache.org>
Date:   2017-05-19T15:34:47Z

    [FLINK-6644] Don't register HUP signal handler on Windows

----


> Don't register HUP unix signal handler on Windows
> -------------------------------------------------
>
>                 Key: FLINK-6644
>                 URL: https://issues.apache.org/jira/browse/FLINK-6644
>             Project: Flink
>          Issue Type: Bug
>          Components: Local Runtime
>    Affects Versions: 1.4.0
>            Reporter: Chesnay Schepler
>            Assignee: Chesnay Schepler
>
> The JM/TM register UNIX signal handlers for INT, HUP and TERM on startup.
> On Windows, HUP is not available, causing this exception to be logged 
> everytime:
> {code}
> 2017-05-19 16:49:58,777 INFO  
> org.apache.flink.runtime.taskmanager.TaskManager              - Error while 
> registering signal handler
> java.lang.IllegalArgumentException: Unknown signal: HUP
>         at sun.misc.Signal.<init>(Unknown Source)
>         at 
> org.apache.flink.runtime.util.SignalHandler$Handler.<init>(SignalHandler.java:41)
>         at 
> org.apache.flink.runtime.util.SignalHandler.register(SignalHandler.java:78)
>         at 
> org.apache.flink.runtime.taskmanager.TaskManager$.main(TaskManager.scala:1525)
>         at 
> org.apache.flink.runtime.taskmanager.TaskManager.main(TaskManager.scala)
> 2017-05-19 16:49:58,778 INFO  
> org.apache.flink.runtime.taskmanager.TaskManager              - Registered 
> UNIX signal handlers for [TERM, INT]
> {code}



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