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From "Greg Hogan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-2897) Use distinct initial indices for OutputEmitter round-robin
Date Thu, 22 Oct 2015 14:41:27 GMT
Greg Hogan created FLINK-2897:
---------------------------------

             Summary: Use distinct initial indices for OutputEmitter round-robin
                 Key: FLINK-2897
                 URL: https://issues.apache.org/jira/browse/FLINK-2897
             Project: Flink
          Issue Type: Improvement
          Components: Distributed Runtime
    Affects Versions: 0.10
            Reporter: Greg Hogan
            Assignee: Greg Hogan


Currently, when performing a round-robin partitioning each task will sequentially partition
starting with partition "1". This is fine in the usual case where the number of partitioned
objects greatly exceeds the number of channels. However, in the case where the number of objects
is relatively few (each, perhaps, requiring a large computation or access to an external system)
it would be much better to begin partitioning at distinct indices (the task index).



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