Siddharth Seth created HIVE-12043:
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Summary: UGI instances being used in IO elevator threads are
incorrect
Key: HIVE-12043
URL: https://issues.apache.org/jira/browse/HIVE-12043
Project: Hive
Issue Type: Sub-task
Reporter: Siddharth Seth
Assignee: Siddharth Seth
... which leads to FileSystem closed exceptions.
I'm not sure yet if this is a result of the threadpool being used, and UGI not
working well with threadpools, or something else.
The UGI instance which was setup - at what looks to be thread creation time -
ends up being used for several different reads, ignoring the actual UGI passed
in. At some point this changes to a new incorrect UGI.
A simple fix is to propagate the correct UGI all the way to the reader, and
that fixes the FileSystem Closed exception. Figuring out the precise reason
would be good though.
Related to HIVE-9898.
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