Eugene Koifman created HIVE-20436:
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Summary: Lock Manager scalability - linear
Key: HIVE-20436
URL: https://issues.apache.org/jira/browse/HIVE-20436
Project: Hive
Issue Type: Improvement
Components: Transactions
Affects Versions: 3.0.0
Reporter: Eugene Koifman
Assignee: Eugene Koifman
Hive TransactionManager currently has a mix of lock based and optimistic
concurrency management techniques (which at times overlap).
For inserts with Dynamic Partitions that represents update/merge it acquires
locks on each existing partition which can flood the metastore DB.
Need to clean up the logical model and the implementation.
This will be an umbrella Jira for this
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