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From Rajesh Balamohan <>
Subject Re: Review Request 50888: Reduce number of partition check calls in add_partitions
Date Tue, 09 Aug 2016 00:22:27 GMT

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(Updated Aug. 9, 2016, 12:22 a.m.)

Review request for hive and Ashutosh Chauhan.


addedPartitions.put() was needed so that it can be rolledback on need basis.

Bugs: HIVE-14462

Repository: hive-git


Metastore already does all the validations. Lots of MS calls are made just before add_partitions
to double check if the partitions exists.  This impacts perf when large number of partitions
are present.

Diffs (updated)

  metastore/src/java/org/apache/hadoop/hive/metastore/ 38c0eed 




Rajesh Balamohan

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