[jira] [Created] (TEZ-1396) Grouping should generate consistent groups when given the same set of Splits

["Siddharth Seth (JIRA)" <ji...@apache.org>]

Siddharth Seth created TEZ-1396:
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             Summary: 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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