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  1. Hadoop HDFS
  2. HDFS-814

Add an api to get the visible length of a DFSDataInputStream.

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Details

    • New Feature
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 0.21.0
    • hdfs-client
    • None
    • Reviewed
    • Add an api to get the visible length of a DFSDataInputStream.

    Description

      Hflush guarantees that the bytes written before are visible to the new readers. However, there is no way to get the length of the visible bytes. The visible length is useful in some applications like SequenceFile.

      Attachments

        1. getLength-yahoo-0.20.patch
          3 kB
          Hairong Kuang
        2. h814_20091221_0.21.patch
          3 kB
          Tsz-wo Sze
        3. h814_20091221.patch
          3 kB
          Tsz-wo Sze
        4. privateInputStream.patch
          0.7 kB
          Hairong Kuang

        Issue Links

          blocks

          Bug - A problem which impairs or prevents the functions of the product. HBASE-2069 Use the new 'visible' length feature added by hdfs-814

          • Major - Major loss of function.
          • Closed
          is related to

          Bug - A problem which impairs or prevents the functions of the product. HDFS-691 Limitation on java.io.InputStream.available()

          • Major - Major loss of function.
          • Closed

          New Feature - A new feature of the product, which has yet to be developed. HDFS-246 Add a method to get file length for Seekable, FSDataInputStream and libhdfs

          • Major - Major loss of function.
          • Open

          Improvement - An improvement or enhancement to an existing feature or task. HADOOP-6307 Support reading on un-closed SequenceFile

          • Major - Major loss of function.
          • Closed

          Activity

            People

              szetszwo Tsz-wo Sze
              szetszwo Tsz-wo Sze
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              Dates

                Created:
                Updated:
                Resolved: