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Posted to dev@hive.apache.org by "Gopal V (JIRA)" <ji...@apache.org> on 2014/10/02 06:44:33 UTC
[jira] [Updated] (HIVE-8328) MapJoin implementation in Tez should
not reload hashtables
[ https://issues.apache.org/jira/browse/HIVE-8328?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gopal V updated HIVE-8328:
--------------------------
Summary: MapJoin implementation in Tez should not reload hashtables (was: TezCacheAccess needs to cache Vertex objects in-memory)
> MapJoin implementation in Tez should not reload hashtables
> -----------------------------------------------------------
>
> Key: HIVE-8328
> URL: https://issues.apache.org/jira/browse/HIVE-8328
> Project: Hive
> Issue Type: Bug
> Components: Tez
> Affects Versions: 0.14.0
> Reporter: Gopal V
> Assignee: Gopal V
> Priority: Blocker
> Labels: Regression
> Fix For: 0.14.0
>
>
> TezCacheAccess needs to cache the pre-built MapJoinTableContainer object.
> The issue is that it currently marks an object as being available in cache, without keeping a strong in-memory reference to it.
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