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https://issues.apache.org/jira/browse/BOOKKEEPER-1050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16003473#comment-16003473
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ASF GitHub Bot commented on BOOKKEEPER-1050:
--------------------------------------------
Github user asfgit closed the pull request at:
https://github.com/apache/bookkeeper/pull/140
> Cache journalFormatVersionToWrite when starting Journal
> -------------------------------------------------------
>
> Key: BOOKKEEPER-1050
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-1050
> Project: Bookkeeper
> Issue Type: Improvement
> Reporter: Matteo Merli
> Assignee: Matteo Merli
> Priority: Minor
> Fix For: 4.5.0
>
>
> Reading the journal version format from {{ServiceConfiguration}} each time is
> inefficient.
> {{ServiceConfiguration}} is based on Java properties which is based on a
> String to object hashtable. Each read implies acquiring a mutex and
> converting from object to int.
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