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https://issues.apache.org/jira/browse/BEAM-9065?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ismaël Mejía resolved BEAM-9065.
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Resolution: Fixed
> 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: 2.5h
> 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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