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https://issues.apache.org/jira/browse/TEZ-4130?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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László Bodor updated TEZ-4130:
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Summary: Config for max task parallelism in shuffle -
tez.shuffle-vertex-manager.max-task-parallelism (was: Config for max task
parallelism)
> Config for max task parallelism in shuffle -
> tez.shuffle-vertex-manager.max-task-parallelism
> --------------------------------------------------------------------------------------------
>
> 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
>
> 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 size
> limitations (4k). However, it can be configured properly, e.g. bigger splits
> (tez.grouping.min-size), it would be more convenient for users to config a
> hard limit for shuffle vertex manager...
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