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https://issues.apache.org/jira/browse/ACCUMULO-6?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Keith Turner updated ACCUMULO-6:
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Affects Version/s: (was: 1.4.0)
> Files deleted while in use by scan
> ----------------------------------
>
> Key: ACCUMULO-6
> URL: https://issues.apache.org/jira/browse/ACCUMULO-6
> Project: Accumulo
> Issue Type: Bug
> Components: tserver
> Reporter: Keith Turner
> Assignee: Keith Turner
> Priority: Critical
> Fix For: 1.4.0
>
>
> When merging minor compactions occur, the merged file is made available for
> delete by the garbage collector. In some situations this is done when the
> file is in use by a scan.
> This bug is caused by the fact that bringMinorCompactionOnline() does not
> remove the merged file from the list of tablet files before calling
> waitForScansToFinish(). Major compactions do remove the file before calling
> waitForScansToFinish().
> Possible solutions
> * Always assume a merged file is in use by scans instead of calling
> waitForScansToFinish(). Would need to move the call to
> removeFilesAfterScan() after the tablet files are updated.
> * Remove file from tablet files before calling waitForScansToFinish()... in
> the case of failures, users may see the results of a compaction and then not
> see it... this is what major compactions do.
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