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Posted to dev@apex.apache.org by "Siyuan Hua (JIRA)" <ji...@apache.org> on 2016/07/21 21:12:20 UTC
[jira] [Created] (APEXMALHAR-2165) Implement a useful default
Partitioner and/or Unifier for Keyed Windowed Operator
Siyuan Hua created APEXMALHAR-2165:
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Summary: Implement a useful default Partitioner and/or Unifier for Keyed Windowed Operator
Key: APEXMALHAR-2165
URL: https://issues.apache.org/jira/browse/APEXMALHAR-2165
Project: Apache Apex Malhar
Issue Type: Improvement
Reporter: Siyuan Hua
Based on first discussion, we can have some default partitioner to partition KeyedWindowedOperator into different instance and the possible Unifier to unify the result together.
For a non-keyed windowed operator, on the high-level API level, we can translate transform to 2 operators one KeyedWindowedOperator with a specified PartitionKey(not logically partition key) connect with another WindowedOperator which do final accumulation. This will be tracked in another ticket
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