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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-744) Support hsync in HDFS
Date Fri, 30 Oct 2009 18:31:59 GMT
Support hsync in HDFS

                 Key: HDFS-744
                 URL: https://issues.apache.org/jira/browse/HDFS-744
             Project: Hadoop HDFS
          Issue Type: New Feature
            Reporter: Hairong Kuang

HDFS-731 implements hsync by default as hflush. As descriibed in HADOOP-6313, the real expected
semantics should be "flushes out to all replicas and all replicas have done posix fsync equivalent
- ie the OS has flushed it to the disk device (but the disk may have it in its cache)." This
jira aims to implement the expected behaviour.

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