Feng Yuan created HIVE-13926:
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Summary: How to limit reduce memory only not Map and Reduce all in
Tez engine
Key: HIVE-13926
URL: https://issues.apache.org/jira/browse/HIVE-13926
Project: Hive
Issue Type: New Feature
Components: Query Planning
Affects Versions: 2.0.0
Reporter: Feng Yuan
Fix For: tez-branch
Now there is only a property:hive.tez.container.size.
This will modify map and reduce`s memory all.
If i want turn up reduce`s memory only.How could i do?
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And i think if there is a possiblilty for dynamiclly allocate reduce`s memory
depend on reduce`s input size!
detils:
assume a reduce is allocated 2GB before.And in this condition a reduce`s normal
input size is 1GB ，and when reduce`s input is 2GB, if hive can turn up mem to
4GB auto?
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