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From "Gary Tully (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (AMQ-5578) preallocate journal files
Date Fri, 29 Apr 2016 16:11:13 GMT

     [ https://issues.apache.org/jira/browse/AMQ-5578?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gary Tully resolved AMQ-5578.
-----------------------------
    Resolution: Fixed

the test suite looks good without the metadata sync.

https://issues.apache.org/jira/browse/AMQ-5603 introduces a preallocationScope=none that can
disable. With the addition of async it is nice to be able to compare.

> 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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