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Discussion thread: here [Change the link from the KIP proposal email archive to your own email thread]

JIRA: here [Change the link from KAFKA-1 to your own ticket]
Please keep the discussion on the mailing list rather than commenting on the wiki (wiki discussions get unwieldy fast).

Motivation

We have faced the following scenario/problem in a lot of situations with KStreams:
   - Huge incoming data being processed by numerous application instances
   - Need to aggregate different fields whose records span all topic partitions (something like “total amount spent by people aged > 30 yrs” when processing a topic partitioned by userid).

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