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https://issues.apache.org/jira/browse/SPARK-31677?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17104264#comment-17104264
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Apache Spark commented on SPARK-31677:
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User 'uncleGen' has created a pull request for this issue:
https://github.com/apache/spark/pull/28497
> Use KVStore to cache stream query progress
> ------------------------------------------
>
> Key: SPARK-31677
> URL: https://issues.apache.org/jira/browse/SPARK-31677
> Project: Spark
> Issue Type: Improvement
> Components: Structured Streaming
> Affects Versions: 2.4.5, 3.0.0
> Reporter: Genmao Yu
> Priority: Major
>
> 1. Streaming query progress information are cached twice in *StreamExecution*
> and *StreamingQueryStatusListener*. It is memory-wasting. We can make this
> two usage unified.
> 2. Use *KVStore* instead to cache streaming query progress information.
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