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https://issues.apache.org/jira/browse/HIVE-13926?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stamatis Zampetakis updated HIVE-13926:
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I cleared the fixVersion field since this ticket is not resolved. Please review 
this ticket and if the fix is already committed to a specific version please 
set the version accordingly and mark the ticket as RESOLVED.

According to the JIRA guidelines 
(https://cwiki.apache.org/confluence/display/Hive/HowToContribute) the 
fixVersion should be set only when the issue is resolved/closed.

> 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: 袁枫
>            Priority: Major
>             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?
> ------------------------------------
> 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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