ngsg commented on code in PR #5707:
URL: https://github.com/apache/hive/pull/5707#discussion_r2006709691
##########
ql/src/java/org/apache/hadoop/hive/ql/optimizer/AbstractBucketJoinProc.java:
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@@ -451,6 +452,8 @@ protected void convertMapJoinToBucketMapJoin(
// successfully convert to bucket map join
desc.setBucketMapJoin(true);
+ // Disabling TEZ_AUTO_REDUCER_PARALLELISM until TEZ-4603 is fixed.
+
context.getConf().setBoolVar(HiveConf.ConfVars.TEZ_AUTO_REDUCER_PARALLELISM,
false);
Review Comment:
`AbstractBucketJoinProc` is used by `SortMergeBucketMapJoinOptimizer` and
`BucketMapJoinOptimizer`, which are only applied when the engine is in
MapReduce mode. Therefore, I think we don't need to modify the Configuration
here.
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