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https://issues.apache.org/jira/browse/BEAM-7689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16881532#comment-16881532
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Heejong Lee commented on BEAM-7689:
-----------------------------------
CC: [~chamikara]
> Temporary directory for WriteOperation may not be unique in FileBaseSink
> ------------------------------------------------------------------------
>
> Key: BEAM-7689
> URL: https://issues.apache.org/jira/browse/BEAM-7689
> Project: Beam
> Issue Type: Bug
> Components: io-java-files
> Reporter: Heejong Lee
> Assignee: Heejong Lee
> Priority: Blocker
> Fix For: 2.7.1, 2.14.0
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> Temporary directory for WriteOperation in FileBasedSink is generated from a
> second-granularity timestamp (yyyy-MM-dd_HH-mm-ss) and unique increasing
> index. Such granularity is not enough to make temporary directories unique
> between different jobs. When two jobs share the same temporary directory,
> output file may not be produced in one job since the required temporary file
> can be deleted from another job.
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