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https://issues.apache.org/jira/browse/SPARK-34383?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17280075#comment-17280075
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Apache Spark commented on SPARK-34383:
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User 'HeartSaVioR' has created a pull request for this issue:
https://github.com/apache/spark/pull/31495
> Optimize WAL commit phase on SS
> -------------------------------
>
> Key: SPARK-34383
> URL: https://issues.apache.org/jira/browse/SPARK-34383
> Project: Spark
> Issue Type: Improvement
> Components: Structured Streaming
> Affects Versions: 3.2.0
> Reporter: Jungtaek Lim
> Priority: Major
>
> I found there're unnecessary access / expensive operation of file system in
> WAL commit phase of SS.
> They can be optimized via caching (using driver memory a bit) & replacing FS
> operation. This brings reduced latency per batch, especially checkpoint
> against object store.
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