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https://issues.apache.org/jira/browse/TEZ-1396?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14095048#comment-14095048
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Siddharth Seth commented on TEZ-1396:
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Similar comment as TEZ-1397. Eventually, we'll have to evaluate the benefits
and drawbacks.
> Grouping should generate consistent groups when given the same set of Splits
> ----------------------------------------------------------------------------
>
> Key: TEZ-1396
> URL: https://issues.apache.org/jira/browse/TEZ-1396
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Siddharth Seth
> Assignee: Siddharth Seth
>
> Currently, it seems like Grouping can end up generating a different set of
> groups on different invocations of the same set of splits and target tasks.
> The order likely gets affected by the randomization in the block location
> report from HDFS.
> This should be consistent for better cache utilization.
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