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https://issues.apache.org/jira/browse/SPARK-31371?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17077048#comment-17077048
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Prashant Sharma commented on SPARK-31371:
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[~tdas] What do you think?
> FileStreamSource: Decide seen files on the checksum, instead of filename.
> -------------------------------------------------------------------------
>
> Key: SPARK-31371
> URL: https://issues.apache.org/jira/browse/SPARK-31371
> Project: Spark
> Issue Type: Improvement
> Components: Structured Streaming
> Affects Versions: 2.4.5, 3.0.0
> Reporter: Prashant Sharma
> Priority: Major
>
> At the moment structured streaming's file source, ignores updates to the same
> file, it has processed earlier. However, for reasons beyond our control, a
> software might update the same file with new data. A case in point can be
> rolling logs, where the latest log file is always e.g. log.txt and the rolled
> logs could be log-1.txt etc...
> So by supporting this, it may not actually be a special casing but supporting
> a genuine use case.
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