Zoltan Haindrich created HIVE-25976:
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Summary: 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
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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