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https://issues.apache.org/jira/browse/HDFS-4191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14534552#comment-14534552
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Kihwal Lee commented on HDFS-4191:
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I don't think there is much benefit in this change.
> Track new transactions per thread so that unnecessary logSync() calls can be
> avoided
> ------------------------------------------------------------------------------------
>
> Key: HDFS-4191
> URL: https://issues.apache.org/jira/browse/HDFS-4191
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 3.0.0
> Reporter: Kihwal Lee
> Assignee: Kihwal Lee
> Labels: BB2015-05-TBR
> Attachments: hdfs-4191-trunk.patch, hdfs-4191-trunk.patch
>
>
> With this fix, logSync() can be called anytime by a thread without affecting
> the batched syncs metrics. As discussed in HDFS-4186, we will put this
> feature only to trunk first and let it soak for some time.
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