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Posted to issues@storm.apache.org by "Arun Mahadevan (JIRA)" <ji...@apache.org> on 2016/12/26 15:19:58 UTC

[jira] [Created] (STORM-2258) Streams api - support CoGroupByKey

Arun Mahadevan created STORM-2258:
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             Summary: Streams api - support CoGroupByKey
                 Key: STORM-2258
                 URL: https://issues.apache.org/jira/browse/STORM-2258
             Project: Apache Storm
          Issue Type: Sub-task
            Reporter: Arun Mahadevan


Group together values with same key from both streams. Similar constructs are supported in beam, spark and flink.

When called on a Stream of (K, V) and (K, W) pairs, return a new Stream of (K, Seq[V], Seq[W]) tuples

See also - https://cloud.google.com/dataflow/model/group-by-key



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