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Hudson commented on HDFS-7976: ------------------------------ FAILURE: Integrated in Hadoop-Yarn-trunk-Java8 #143 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/143/]) HDFS-7976. Update NFS user guide for mount option 'sync' to minimize or avoid reordered writes. Contributed by Brandon Li (brandonli: rev 51f1f4937402c63392854443ccde18c1579e3348) * hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt * hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HdfsNfsGateway.md > 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 > Fix For: 2.7.0 > > Attachments: HDFS-7976.001.patch, HDFS-7976.002.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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)