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https://issues.apache.org/jira/browse/HIVE-8258?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Gates updated HIVE-8258:
-----------------------------
    Status: Patch Available  (was: Open)

> Compactor cleaners can be starved on a busy table or partition.
> ---------------------------------------------------------------
>
>                 Key: HIVE-8258
>                 URL: https://issues.apache.org/jira/browse/HIVE-8258
>             Project: Hive
>          Issue Type: Bug
>          Components: Transactions
>    Affects Versions: 0.13.1
>            Reporter: Alan Gates
>            Assignee: Alan Gates
>            Priority: Critical
>             Fix For: 0.14.0
>
>         Attachments: HIVE-8258.2.patch, HIVE-8258.3.patch, HIVE-8258.4.patch, 
> HIVE-8258.5.patch, HIVE-8258.patch
>
>
> Currently the cleaning thread in the compactor does not run on a table or 
> partition while any locks are held on this partition.  This leaves it open to 
> starvation in the case of a busy table or partition.  It only needs to wait 
> until all locks on the table/partition at the time of the compaction have 
> expired.  Any jobs initiated after that (and thus any locks obtained) will be 
> for the new versions of the files.



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