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https://issues.apache.org/jira/browse/HIVE-16546?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15992536#comment-15992536
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Prasanth Jayachandran edited comment on HIVE-16546 at 5/2/17 5:40 PM:
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[~sershe] could you please review .4 to .5 diff in RB? The changes are mostly
in JavaDataModel to deal with arrays that can potentially overflow. This caused
many small changes in vector UDAF codepath.
https://reviews.apache.org/r/58777/diff/5-6/
was (Author: prasanth_j):
[~sershe] could you please review .4 to .5 diff in RB? The changes are mostly
in JavaDataModel to deal with arrays that can potentially overflow. This caused
many small changes in vector UDAF codepath.
> LLAP: Fail map join tasks if hash table memory exceeds threshold
> ----------------------------------------------------------------
>
> Key: HIVE-16546
> URL: https://issues.apache.org/jira/browse/HIVE-16546
> Project: Hive
> Issue Type: Bug
> Components: llap
> Affects Versions: 3.0.0
> Reporter: Prasanth Jayachandran
> Assignee: Prasanth Jayachandran
> Attachments: HIVE-16546.1.patch, HIVE-16546.2.patch,
> HIVE-16546.3.patch, HIVE-16546.4.patch, HIVE-16546.5.patch,
> HIVE-16546.WIP.patch
>
>
> When map join task is running in llap, it can potentially use lot more memory
> than its limit which could be memory per executor or no conditional task
> size. If it uses more memory, it can adversely affect other query performance
> or it can even bring down the daemon. In such cases, it is better to fail the
> query than to bring down the daemon.
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