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Hudson commented on HDFS-7387: ------------------------------ SUCCESS: Integrated in Hadoop-Yarn-trunk #741 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/741/]) HDFS-7387. NFS may only do partial commit due to a race between COMMIT and write. Contributed by Brandon Li (brandonli: rev 99d9d0c2d19b9f161b765947f3fb64619ea58090) * hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt * hadoop-hdfs-project/hadoop-hdfs-nfs/src/test/java/org/apache/hadoop/hdfs/nfs/nfs3/TestWrites.java * hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/OpenFileCtx.java > NFS may only do partial commit due to a race between COMMIT and write > --------------------------------------------------------------------- > > Key: HDFS-7387 > URL: https://issues.apache.org/jira/browse/HDFS-7387 > Project: Hadoop HDFS > Issue Type: Bug > Components: nfs > Affects Versions: 2.6.0 > Reporter: Brandon Li > Assignee: Brandon Li > Priority: Critical > Fix For: 2.7.0 > > Attachments: HDFS-7387.001.patch, HDFS-7387.002.patch > > > The requested range may not be committed when the following happens: > 1. the last pending write is removed from the queue to write to hdfs > 2. a commit request arrives, NFS sees there is not pending write, and it will > do a sync > 3. this sync request could flush only part of the last write to hdfs > 4. if a file read happens immediately after the above steps, the user may not > see all the data. -- This message was sent by Atlassian JIRA (v6.3.4#6332)