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https://issues.apache.org/jira/browse/SPARK-26170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16698569#comment-16698569
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Apache Spark commented on SPARK-26170:
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User 'HeartSaVioR' has created a pull request for this issue:
https://github.com/apache/spark/pull/23142
> Add missing metrics in FlatMapGroupsWithState
> ---------------------------------------------
>
> Key: SPARK-26170
> URL: https://issues.apache.org/jira/browse/SPARK-26170
> Project: Spark
> Issue Type: Improvement
> Components: Structured Streaming
> Affects Versions: 3.0.0
> Reporter: Jungtaek Lim
> Priority: Major
>
> Credit to [~jlaskowski]: I can't change reporter so please try to change it
> if you would like to registered as reporter of this issue.
> Unlike other operators like StateStoreSaveExec, StreamingDeduplicateExec, and
> StreamingGlobalLimitExec, FlatMapGroupsWithStateExec doesn't measure
> available metrics in StateStoreWriter, so only part of metrics are measured
> in setStoreMetrics.
> This issue is to track the effort to measure all possible metrics from
> FlatMapGroupsWithStateExec. Some metrics will be kept unavailable.
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