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https://issues.apache.org/jira/browse/HDFS-7976?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Brandon Li updated HDFS-7976:
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Status: Patch Available (was: Open)
> Update NFS user guide for mount option "sync" to minimize or avoid reordered
> writes
> -----------------------------------------------------------------------------------
>
> Key: HDFS-7976
> URL: https://issues.apache.org/jira/browse/HDFS-7976
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: documentation, nfs
> Affects Versions: 2.2.0
> Reporter: Brandon Li
> Assignee: Brandon Li
> Attachments: HDFS-7976.001.patch
>
>
> The mount option "sync" is critical. I observed that this mount option can
> minimize or avoid reordered writes. Mount option "sync" could have some
> negative performance impact on the file uploading. However, it makes the
> performance much more predicable and can also reduce the possibility of
> failures caused by file dumping.
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