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https://issues.apache.org/jira/browse/TEZ-4130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17275400#comment-17275400
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László Bodor commented on TEZ-4130:
-----------------------------------
this jira is in a very immature state, and TEZ-4271 was created for the same
purpose, I believe we can close this as duplicate
> Config for hard limiting the number of splits
> ---------------------------------------------
>
> Key: TEZ-4130
> URL: https://issues.apache.org/jira/browse/TEZ-4130
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: László Bodor
> Assignee: László Bodor
> Priority: Major
> Attachments: TEZ-4130.01.patch, TEZ-4130.02.patch
>
>
> During the investigation of a customer issue, I found that tez generated a
> dag plan containing >4k tasks. It failed for hive because of bucket number
> limitations (4k). It can be configured properly, e.g. bigger splits
> (tez.grouping.min-size), but maybe it would be more convenient for users to
> config a hard limit for the number of splits.
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