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https://issues.apache.org/jira/browse/SPARK-17879?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust resolved SPARK-17879.
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Resolution: Not A Problem
> Don't compact metadata logs constantly into a single compacted file
> -------------------------------------------------------------------
>
> Key: SPARK-17879
> URL: https://issues.apache.org/jira/browse/SPARK-17879
> Project: Spark
> Issue Type: Bug
> Components: Structured Streaming
> Affects Versions: 2.0.1
> Reporter: Burak Yavuz
>
> With metadata log compaction, we compact all files into a single file every
> "n" batches. The problem is, over time, this single file becomes huge, and
> could become an issue to constantly write out in the driver.
> It would be a good idea to cap the compacted file size, so that we don't end
> up writing huge files in the driver.
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