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https://issues.apache.org/jira/browse/HIVE-25976?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HIVE-25976:
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    Labels: pull-request-available  (was: )

> Cleaner may remove files being accessed from a fetch-task-converted reader
> --------------------------------------------------------------------------
>
>                 Key: HIVE-25976
>                 URL: https://issues.apache.org/jira/browse/HIVE-25976
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Zoltan Haindrich
>            Assignee: László Végh
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: fetch_task_conv_compactor_test.patch
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> in a nutshell the following happens:
> * query is compiled in fetch-task-converted mode
> * no real execution happens....but the locks are released
> * the HS2 is communicating with the client and uses the fetch-task to get the 
> rows - which in this case will directly read files from the table's 
> directory....
> * client sleeps between reads - so there is ample time for other events...
> * cleaner wakes up and removes some files....
> * in the next read the fetch-task encounters a read error...



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