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https://issues.apache.org/jira/browse/FLINK-5340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16015707#comment-16015707
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ASF GitHub Bot commented on FLINK-5340:
---------------------------------------

Github user alpinegizmo commented on the issue:

    https://github.com/apache/flink/pull/3908
  
    @zentol Ok, that's an important distinction, but now I see another 
ambiguity. Does one of these work?
    
      For jobs currently in a failing/recovering situation, the time elapsed 
during this outage.
    
      The time elapsed during the job's most recent failure.
    
    If my job fails and isn't running for 5 minutes and then recovers, after 
recovery what does `downtime` report? 0, or 5 minutes?


> Add a metric exposing jobs uptimes
> ----------------------------------
>
>                 Key: FLINK-5340
>                 URL: https://issues.apache.org/jira/browse/FLINK-5340
>             Project: Flink
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Dan Bress
>            Assignee: Stephan Ewen
>            Priority: Minor
>             Fix For: 1.3.0
>
>
> I would like the job manager to expose a metric indicating how long each job 
> has been up.  This way I can grab this number and measure the health of my 
> job.



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