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https://issues.apache.org/jira/browse/AMQ-5578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15176587#comment-15176587
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Timothy Bish commented on AMQ-5578:
-----------------------------------
This bit of expected magic under the covers was not documented in your code so
I didn't validate it to that level, would be good to document these sorts of
expectations in the code. Will revert it to avoid losing any magic.
> 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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