[jira] [Commented] (AMQ-5578) preallocate journal files

["ASF subversion and git services (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMQ-5578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15176501#comment-15176501 ] 

ASF subversion and git services commented on AMQ-5578:
------------------------------------------------------

Commit e89b7a57f1aa206830998ae022c041302a22baea in activemq's branch refs/heads/master from [~tabish121]
[ https://git-wip-us.apache.org/repos/asf?p=activemq.git;h=e89b7a5 ]

https://issues.apache.org/jira/browse/AMQ-5578

Remove unnecessary zero init block as the java spec requires the
allocations to do this already.  Fix some warnings.

> preallocate journal files
> -------------------------
>
>                 Key: AMQ-5578
>                 URL: https://issues.apache.org/jira/browse/AMQ-5578
>             Project: ActiveMQ
>          Issue Type: Improvement
>          Components: Message Store
>    Affects Versions: 5.11.0
>            Reporter: Gary Tully
>            Assignee: Gary Tully
>              Labels: journal, kahaDB, perfomance
>             Fix For: 5.14.0
>
>
> Our journals are append only, however we use the size to track journal rollover on recovery and replay. We can improve performance if we never update the size on disk and preallocate on creation.
> Rework journal logic to ensure size is never updated. This will allow the configuration option from https://issues.apache.org/jira/browse/AMQ-4947 to be the default.



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