[jira] [Resolved] (KAFKA-7021) Source KTable checkpoint is not correct

["Guozhang Wang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-7021?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guozhang Wang resolved KAFKA-7021.
----------------------------------
    Resolution: Fixed

> Source KTable checkpoint is not correct
> ---------------------------------------
>
>                 Key: KAFKA-7021
>                 URL: https://issues.apache.org/jira/browse/KAFKA-7021
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>    Affects Versions: 0.10.0.0
>            Reporter: Matthias J. Sax
>            Assignee: Guozhang Wang
>            Priority: Major
>             Fix For: 0.10.2.2, 2.0.0, 0.11.0.3, 1.0.2, 1.1.1
>
>
> Kafka Streams treats source KTables,ie, table created via `builder.table()`, differently. Instead of creating a changelog topic, the original source topic is use to avoid unnecessary data redundancy.
> However, Kafka Streams does not write a correct local state checkpoint file. This results in unnecessary state restore after a rebalance. Instead of the latest committed offset, the latest restored offset is written into the checkpoint file in `ProcessorStateManager#close()`



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