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https://issues.apache.org/jira/browse/KAFKA-6780?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ismael Juma updated KAFKA-6780:
-------------------------------
    Fix Version/s: 1.1.1
                   1.2.0

> log cleaner shouldn't clean messages beyond high watermark
> ----------------------------------------------------------
>
>                 Key: KAFKA-6780
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6780
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 1.1.0
>            Reporter: Jun Rao
>            Priority: Major
>             Fix For: 1.2.0, 1.1.1
>
>
> Currently, the firstUncleanableDirtyOffset computed by the log cleaner is 
> bounded by the first offset in the active segment. It's possible for the high 
> watermark to be smaller than that. This may cause a committed record to be 
> removed because of an uncommitted record.



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