[jira] [Resolved] (KAFKA-179) Log files always touched when broker is bounced

["Joel Koshy (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-179?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joel Koshy resolved KAFKA-179.
------------------------------

    Resolution: Implemented

Cool - thanks for checking.

> Log files always touched when broker is bounced
> -----------------------------------------------
>
>                 Key: KAFKA-179
>                 URL: https://issues.apache.org/jira/browse/KAFKA-179
>             Project: Kafka
>          Issue Type: Bug
>          Components: core
>            Reporter: Joel Koshy
>            Priority: Minor
>              Labels: newbie
>             Fix For: 0.8.2
>
>
> It looks like the latest log segment is always touched when the broker upon start-up regardless of whether it has corrupt data or not, which fudges the segment's mtime. Minor issue, but I found it a bit misleading when trying to verify a log cleanup setting in production. I think it should be as simple as adding a guard in FileMessageSet's recover method to skip truncate if validUpTo == the length of the segment. Will test this later.



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