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Posted to dev@hive.apache.org by "Gopal V (JIRA)" <ji...@apache.org> on 2018/10/24 23:21:00 UTC

[jira] [Created] (HIVE-20801) ACID: Allow DbTxnManager to ignore non-ACID table locking

Gopal V created HIVE-20801:
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             Summary: ACID: Allow DbTxnManager to ignore non-ACID table locking
                 Key: HIVE-20801
                 URL: https://issues.apache.org/jira/browse/HIVE-20801
             Project: Hive
          Issue Type: Bug
            Reporter: Gopal V


Enabling ACIDv1 on a cluster produces a central locking bottleneck for all table types, which is not always the intention.

The Hive locking for non-acid tables are advisory (i.e a client can write/read without locking), which means that the implementation does not offer strong consistency despite the lock manager consuming resources centrally.

Disabling this lock acquisition would improve the performance of non-ACID tables co-existing with a globally configured DbTxnManager implementation.



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