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Posted to issues@tez.apache.org by "Rohini Palaniswamy (JIRA)" <ji...@apache.org> on 2014/05/19 01:41:37 UTC

[jira] [Created] (TEZ-1128) OnFileUnorderedPartitionedKVOutput does not handle partitioning correctly

Rohini Palaniswamy created TEZ-1128:
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             Summary: OnFileUnorderedPartitionedKVOutput does not handle partitioning correctly
                 Key: TEZ-1128
                 URL: https://issues.apache.org/jira/browse/TEZ-1128
             Project: Apache Tez
          Issue Type: Bug
            Reporter: Rohini Palaniswamy


Two issues:
   1) It does not set value of TezJobConfig.TEZ_RUNTIME_NUM_EXPECTED_PARTITIONS. So MRPartitioner assumes the number of partitions is 1 and goes with a default partitioner that writes only to last partition. 
  2) If one of the partitions has empty output (due to issue 1) it gets stuck without fetching input.



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