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From "Brandon Li (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-7976) Update NFS user guide for mount option "sync" to minimize or avoid reordered writes
Date Mon, 23 Mar 2015 20:28:53 GMT
Brandon Li created HDFS-7976:
--------------------------------

             Summary: 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


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
possibly of failures caused by file dumping.



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