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From "Guozhang Wang (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (KAFKA-7101) Session Window store should set topic policy `compact,cleanup`
Date Tue, 03 Jul 2018 05:01:00 GMT

     [ https://issues.apache.org/jira/browse/KAFKA-7101?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Guozhang Wang resolved KAFKA-7101.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 2.1.0

> Session Window store should set topic policy `compact,cleanup`
> --------------------------------------------------------------
>
>                 Key: KAFKA-7101
>                 URL: https://issues.apache.org/jira/browse/KAFKA-7101
>             Project: Kafka
>          Issue Type: Improvement
>          Components: streams
>    Affects Versions: 0.10.2.2, 2.0.0, 0.11.0.3, 1.0.2, 1.1.1
>            Reporter: Matthias J. Sax
>            Assignee: Guozhang Wang
>            Priority: Major
>             Fix For: 2.1.0
>
>
> With [KIP-71|https://cwiki.apache.org/confluence/display/KAFKA/KIP-71%3A+Enable+log+compaction+and+deletion+to+co-exist] (0.10.1.0)
topic config `compact,delete` was introduce to apply to windowed store changelog topics in
Kafka Streams. Later (0.10.2.0), session windows got added in [KIP-94|https://cwiki.apache.org/confluence/display/KAFKA/KIP-94+Session+Windows].
However, session windows do not use `compact,delete` at the moment. This result is the same
issue window stores face before KIP-71. Thus, we should enable `compact,delete` for session
window changelog topics, too.



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