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  1. Hadoop HDFS
  2. HDFS-3246

pRead equivalent for direct read path

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 3.0.0-alpha1
    • Fix Version/s: 3.3.0
    • Component/s: hdfs-client, performance
    • Labels:
      None

      Description

      There is no pread equivalent in ByteBufferReadable. We should consider adding one. It would be relatively easy to implement for the distributed case (certainly compared to HDFS-2834), since DFSInputStream does most of the heavy lifting.

        Attachments

        1. HDFS-3246.001.patch
          28 kB
          Zheng Hu
        2. HDFS-3246.002.patch
          29 kB
          Sahil Takiar
        3. HDFS-3246.003.patch
          29 kB
          Sahil Takiar
        4. HDFS-3246.004.patch
          30 kB
          Sahil Takiar
        5. HDFS-3246.005.patch
          48 kB
          Sahil Takiar
        6. HDFS-3246.006.patch
          48 kB
          Sahil Takiar
        7. HDFS-3246.007.patch
          56 kB
          Sahil Takiar

          Issue Links

          is related to

          Improvement - An improvement or enhancement to an existing feature or task. HBASE-21879 Read HFile's block to ByteBuffer directly instead of to byte for reducing young gc purpose

          • Major - Major loss of function.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-2834 ByteBuffer-based read API for DFSInputStream

          • Major - Major loss of function.
          • Closed

          Task - A task that needs to be done. HDFS-14483 Backport HDFS-14111,HDFS-3246 ByteBuffer pread interface to branch-2.9

          • Major - Major loss of function.
          • Resolved

          Task - A task that needs to be done. HDFS-14585 Backport HDFS-8901 Use ByteBuffer in DFSInputStream#read to branch2.9

          • Major - Major loss of function.
          • Resolved
          relates to

          Sub-task - The sub-task of the issue HDFS-8901 Use ByteBuffer in striping positional read

          • Major - Major loss of function.
          • Resolved
          links to

          Web Link GitHub Pull Request #597

            Activity

              People

              • Assignee:
                stakiar Sahil Takiar
                Reporter:
                henryr Henry Robinson
              • Votes:
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                Dates

                • Created:
                  Updated:
                  Resolved: