[jira] [Created] (TEZ-1937) Reduce cost of merging ifiles in UnorderedPartitionedWriter

[Rajesh Balamohan (JIRA)]

Rajesh Balamohan created TEZ-1937:
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             Summary: Reduce cost of merging ifiles in 
UnorderedPartitionedWriter
                 Key: TEZ-1937
                 URL: https://issues.apache.org/jira/browse/TEZ-1937
             Project: Apache Tez
          Issue Type: Bug
            Reporter: Rajesh Balamohan


Currently we iterate through all spilled files for merging.  This incurs 
additional deserialization cost.



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