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https://issues.apache.org/jira/browse/AMQ-6292?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15284654#comment-15284654
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Timothy Bish commented on AMQ-6292:
-----------------------------------
The appender is closed on completion of the rewrite to the new file, so the
last batch will be sync'd there.
> ACK rewrite task does unnecessary syncs
> ---------------------------------------
>
> Key: AMQ-6292
> URL: https://issues.apache.org/jira/browse/AMQ-6292
> Project: ActiveMQ
> Issue Type: Improvement
> Components: KahaDB
> Affects Versions: 5.13.3
> Reporter: Timothy Bish
> Assignee: Timothy Bish
> Fix For: 5.14.0, 5.13.4
>
>
> When rewriting acks from an older journal to a new one the rewrite task
> forces a disk sync on each ack written, should instead just queue the write
> and allow the batch write to sync when it is full or the appender is closed.
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