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Posted to dev@hive.apache.org by "Ferdinand Xu (JIRA)" <ji...@apache.org> on 2017/10/12 03:07:00 UTC
[jira] [Created] (HIVE-17783) Hybrid Grace Join has performance
degradation for N-way join using Hive on Tez
Ferdinand Xu created HIVE-17783:
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Summary: Hybrid Grace Join has performance degradation for N-way join using Hive on Tez
Key: HIVE-17783
URL: https://issues.apache.org/jira/browse/HIVE-17783
Project: Hive
Issue Type: Bug
Affects Versions: 2.2.0
Environment: 8*Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz
1 master + 7 workers
TPC-DS at 3TB data scales
Hive version : 2.2.0
Reporter: Ferdinand Xu
Most configurations are using default value. And the benchmark is to test enabling against disabling hybrid grace hash join using TPC-DS queries at 3TB data scales. Many queries related to N-way join has performance degradation over three times test. Detailed result is attached.
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