Sergey Shelukhin created HIVE-12938:
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Summary: Tez session pool shouldn't create a new session if one of
the default queues is specified
Key: HIVE-12938
URL: https://issues.apache.org/jira/browse/HIVE-12938
Project: Hive
Issue Type: Bug
Reporter: Takahiko Saito
Presenlty, Tez session pool says "if the user has specified a queue name
themselves, we create a new session". Which is what it actually does. This can
lead to a counter-intuitive situation where we have idle pool sessions for a
queue foo, the user requests a session from that queue, and a new one is
started.
It should be possible to choose a pool session if it's from one of the default
queues... we need to see if it's reasonable to have a separate lookup structure
for that. As luck would have it, there's already some in-use state tracking on
the sessions themselves.
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