Sergio Peña created HIVE-17150:
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Summary: CREATE INDEX execute HMS out-of-transaction listener
calls inside a transaction
Key: HIVE-17150
URL: https://issues.apache.org/jira/browse/HIVE-17150
Project: Hive
Issue Type: Bug
Components: Metastore
Affects Versions: 2.3.0
Reporter: Sergio Peña
The problem with CREATE INDEX is that it calls a CREATE TABLE operation inside
the same CREATE INDEX transaction. During listener calls, there are some
listeners that should run in an out-of-transaction context, for instance,
Sentry blocks the HMS operation until the DB log notification is processed, but
if the transaction has not finished, then the out-of-transaction listener will
block forever (or until a read-time out happens).
A fix would be to add a parameter to the out-of-transaction listener that
alerts the listener if HMS is in an active transaction. If so, then is up to
the listener plugin to return immediately and avoid blocking the HMS operation.
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