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Posted to issues@storm.apache.org by "Kamal (JIRA)" <ji...@apache.org> on 2017/08/06 20:07:00 UTC

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

    [ https://issues.apache.org/jira/browse/STORM-2258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16115915#comment-16115915 ] 

Kamal commented on STORM-2258:
------------------------------

Thanks for reviewing the PR. Modified the PR as per your comments. Please review the next iteration.

> 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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