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https://issues.apache.org/jira/browse/KAFKA-350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13287007#comment-13287007
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Neha Narkhede commented on KAFKA-350:
-------------------------------------

Handle the logic of deleting segments that have start offset > highwatermark 
during log recovery. 
                
> Improve the high water mark maintenance to store high watermarks for all 
> partitions in a single file on disk
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-350
>                 URL: https://issues.apache.org/jira/browse/KAFKA-350
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 0.8
>            Reporter: Neha Narkhede
>
> KAFKA-46 introduced per partition leader high watermarks. But it stores those 
> in one file per partition. A more performant solution would be to store all 
> high watermarks in a single file on disk

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