[jira] [Work logged] (BEAM-9065) Spark runner accumulates metrics (incorrectly) between runs

[ASF GitHub Bot (Jira)]

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https://issues.apache.org/jira/browse/BEAM-9065?focusedWorklogId=377779&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-377779
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ASF GitHub Bot logged work on BEAM-9065:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 27/Jan/20 18:26
            Start Date: 27/Jan/20 18:26
    Worklog Time Spent: 10m 
      Work Description: boyuanzz commented on issue #10670: 
[release-2.19.0][BEAM-9065] Reset MetricsContainerStepMapAccumulator upon 
initialization of MetricsAccumulator singleton because metrics need to be reset 
when several pipelines are run inside the same JVM
URL: https://github.com/apache/beam/pull/10670#issuecomment-578885503
 
 
   > Anything missing to get this one merged @boyuanzz ?
   
   I thought it will go with 2.20.0 release: 
https://issues.apache.org/jira/browse/BEAM-9065?focusedCommentId=17020486&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-17020486.
 I'll merge it.
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 377779)
    Time Spent: 2h 20m  (was: 2h 10m)

> Spark runner accumulates metrics (incorrectly) between runs
> -----------------------------------------------------------
>
>                 Key: BEAM-9065
>                 URL: https://issues.apache.org/jira/browse/BEAM-9065
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-spark
>            Reporter: Etienne Chauchot
>            Assignee: Etienne Chauchot
>            Priority: Major
>             Fix For: 2.19.0
>
>          Time Spent: 2h 20m
>  Remaining Estimate: 0h
>
> When pipeline.run() is called, MetricsAccumulator (wrapper of 
> MetricsContainerStepMap spark accumulator) is initialized. Spark needs this 
> class to be a singleton for failover. The problem is that when several 
> pipelines are run inside the same JVM, the initialization of 
> MetricsAccumulator singleton does not reset the underlying spark accumulator  
> causing metrics to be accumulated between runs.



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