[jira] [Created] (HDFS-6071) BlockReaderLocal doesn't return -1 on EOF when doing a zero-length read on a short file

["Colin Patrick McCabe (JIRA)" <ji...@apache.org>]

Colin Patrick McCabe created HDFS-6071:
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             Summary: BlockReaderLocal doesn't return -1 on EOF when doing a zero-length read on a short file
                 Key: HDFS-6071
                 URL: https://issues.apache.org/jira/browse/HDFS-6071
             Project: Hadoop HDFS
          Issue Type: Bug
    Affects Versions: 2.4.0
            Reporter: Colin Patrick McCabe
            Assignee: Colin Patrick McCabe


BlockReaderLocal doesn't return -1 on EOF when doing a zero-length read on a short file.  Specifically, if the file is shorter than the readahead buffer, or if the position is nearer to the end than the length of the readahead buffer, this may happen.  This is mainly a concern because libhdfs relies on this to determine whether it should use direct reads.



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