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From "Liang Xie (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-6108) make the length of the range in sync_file_range() configurable
Date Mon, 17 Mar 2014 07:23:44 GMT
Liang Xie created HDFS-6108:
-------------------------------

             Summary: make the length of the range in sync_file_range() configurable
                 Key: HDFS-6108
                 URL: https://issues.apache.org/jira/browse/HDFS-6108
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: datanode
    Affects Versions: 2.3.0, 3.0.0
            Reporter: Liang Xie
            Assignee: Liang Xie


Current codebase has a hard code value for sync_file_range system call, we'd better to make
it configurable, since different scenario probably has a different/better value for it. (ps:
i found it's 1 * 1024 * 1024 in fb-20 branch)



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