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https://issues.apache.org/jira/browse/SPARK-24295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16547873#comment-16547873
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Li Yuanjian commented on SPARK-24295:
-------------------------------------

Thanks for your detailed explain. 
You can check this: SPARK-17604, seems like the same requirements about purging 
the compact aged file. The small difference is we need the purge logic in 
FileStreamSinkLog while the jira support in FileSourceSinkLog, but I think the 
strategy can be reused. Also cc the original author [~jerryshao2015] for 
SPARK-17604. 


> Purge Structured streaming FileStreamSinkLog metadata compact file data.
> ------------------------------------------------------------------------
>
>                 Key: SPARK-24295
>                 URL: https://issues.apache.org/jira/browse/SPARK-24295
>             Project: Spark
>          Issue Type: Bug
>          Components: Structured Streaming
>    Affects Versions: 2.3.0
>            Reporter: Iqbal Singh
>            Priority: Major
>
> FileStreamSinkLog metadata logs are concatenated to a single compact file 
> after defined compact interval.
> For long running jobs, compact file size can grow up to 10's of GB's, Causing 
> slowness  while reading the data from FileStreamSinkLog dir as spark is 
> defaulting to the "__spark__metadata" dir for the read.
> We need a functionality to purge the compact file size.
>  



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