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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-6307) Support reading on un-closed SequenceFile
Date Fri, 09 Oct 2009 22:32:31 GMT
Support reading on un-closed SequenceFile
-----------------------------------------

                 Key: HADOOP-6307
                 URL: https://issues.apache.org/jira/browse/HADOOP-6307
             Project: Hadoop Common
          Issue Type: Improvement
          Components: io
            Reporter: Tsz Wo (Nicholas), SZE


When a SequenceFile.Reader is constructed, it calls fs.getFileStatus(file).getLen().  However,
fs.getFileStatus(file).getLen() does not return the hflushed length for un-closed file since
the Namenode does not know the hflushed length.  DFSClient have to ask a datanode for the
length last block which is being written; see also HDFS-570.

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