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https://issues.apache.org/jira/browse/SPARK-17604?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Saisai Shao updated SPARK-17604:
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Issue Type: Sub-task (was: Improvement)
Parent: SPARK-17267
> Support purging aged file entry for FileStreamSource metadata log
> -----------------------------------------------------------------
>
> Key: SPARK-17604
> URL: https://issues.apache.org/jira/browse/SPARK-17604
> Project: Spark
> Issue Type: Sub-task
> Components: SQL, Streaming
> Reporter: Saisai Shao
> Priority: Minor
>
> Currently with SPARK-15698, FileStreamSource metadata log will be compacted
> periodically (10 batches by default), this means compacted batch file will
> contain whole file entries been processed. With the time passed, the
> compacted batch file will be accumulated to a relative large file.
> With SPARK-17165, now {{FileStreamSource}} doesn't track the aged file entry,
> but in the log we still keep the full records, this is not necessary and
> quite time-consuming during recovery. So here propose to also add file entry
> purging ability to {{FileStreamSource}} metadata log.
> This is pending on SPARK-15698.
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