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https://issues.apache.org/jira/browse/AMQ-4662?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gary Tully resolved AMQ-4662.
-----------------------------

    Resolution: Fixed

new default value via http://svn.apache.org/r1509178
                
> KahaDB default checksumJournalFiles to true
> -------------------------------------------
>
>                 Key: AMQ-4662
>                 URL: https://issues.apache.org/jira/browse/AMQ-4662
>             Project: ActiveMQ
>          Issue Type: Improvement
>          Components: Message Store
>    Affects Versions: 5.8.0
>            Reporter: Gary Tully
>            Assignee: Gary Tully
>              Labels: corruption, kahadb, messagestore, performance, recovery
>             Fix For: 5.9.0
>
>
> A checksum allows us to validate and ignore missing/corrupt journal files 
> (both of which are optional). It is too late to enable checksumJournalFiles 
> after the fact of corruption. Best to have it on by default and take the 
> small performance penalty so that in the rare event of corruption we have 
> some options. Folks who don't care about the integrity of the journal can 
> disable it.

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