-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/57903/
-----------------------------------------------------------
(Updated March 24, 2017, 9:20 p.m.)
Review request for hive, Gopal V, Jason Dere, and Siddharth Seth.
Changes
-------
Fixed the hang and added a unit test.
Bugs: HIVE-16282
https://issues.apache.org/jira/browse/HIVE-16282
Repository: hive-git
Description
-------
Currently all reducers have slow start meaning, the mappers get preference in
scheduling. However, incase of semijoin reductions, the reducer of semijoin
branch should get priority before the mapper to which it feeds in.
Diffs (updated)
-----
ql/src/java/org/apache/hadoop/hive/ql/exec/tez/DagUtils.java aa2dfc7
ql/src/java/org/apache/hadoop/hive/ql/optimizer/DynamicPartitionPruningOptimization.java
b9f5912
ql/src/java/org/apache/hadoop/hive/ql/parse/GenTezUtils.java 905431f
ql/src/java/org/apache/hadoop/hive/ql/parse/GenTezWork.java 97f3300
ql/src/java/org/apache/hadoop/hive/ql/plan/ReduceSinkDesc.java 38461d5
ql/src/java/org/apache/hadoop/hive/ql/plan/ReduceWork.java ee784dc
ql/src/java/org/apache/hadoop/hive/ql/plan/TezEdgeProperty.java a3aa12f
ql/src/test/queries/clientpositive/dynamic_semijoin_reduction.q 6338ac3
ql/src/test/results/clientpositive/llap/dynamic_semijoin_reduction.q.out
c1dd8c0
Diff: https://reviews.apache.org/r/57903/diff/2/
Changes: https://reviews.apache.org/r/57903/diff/1-2/
Testing
-------
Thanks,
Deepak Jaiswal
