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From "Martin Lichtin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMQ-5551) The DiskBenchmark util doesn't sync (fsync) to disk for sync writes
Date Wed, 23 Mar 2016 10:32:25 GMT

    [ https://issues.apache.org/jira/browse/AMQ-5551?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15208197#comment-15208197
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Martin Lichtin commented on AMQ-5551:
-------------------------------------

Hi Christian, is it on purpose that the KahaDB code uses

  org.apache.activemq.kahaDB.files.skipMetadataUpdate

but the Disk Benchmark uses a different flag name?

  org.apache.activemq.file.skipMetadataUpdate



> The DiskBenchmark util doesn't sync (fsync) to disk for sync writes
> -------------------------------------------------------------------
>
>                 Key: AMQ-5551
>                 URL: https://issues.apache.org/jira/browse/AMQ-5551
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Message Store
>    Affects Versions: 5.10.1
>            Reporter: Christian Posta
>            Assignee: Christian Posta
>             Fix For: 5.12.0
>
>
> We added a JVM flag, org.apache.activemq.file.skipMetadataUpdate, to control whether
to force metadata syncs or not when sync'ing to disk. Unfortunately, that flag was not applied
to the section of code that does the sync writes. 
> Fix on the way.



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