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Posted to builds@flink.apache.org by Flink CI <fl...@foxmail.com> on 2020/04/09 23:15:44 UTC

[CRON] Still Failing: apache/flink#43262 (master - b8f0bf4)

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[Build #43262 still failing](https://travis-
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[b8f0bf4 CHANGESET
->](https://github.com/apache/flink/compare/36e597277014f41b4eca1dae14e3d247e8ab17e5...b8f0bf4f244f82ddf76428fc4f203998d434c14c)  
  
[FLINK-16864][metrics] Add IdleTime metric for task  
This pr adds an IdleTime metric which measures idle time of a task including
the time cost for mail processor to wait for new mail and the time cost in
record writer to waiting a new buffer.  
  
1\. when a job can not catch up with the speed of data generating, the vertex
which idle time is near to zero is the bottle neck of the job.  
2\. when a job is not busy, idle time can be used to guide user how much he
can scale down the job.