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  1. HBase
  2. HBASE-11870

Optimization : Avoid copy of key and value for tags addition in AC and VC

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.98.0
    • Fix Version/s: 0.99.2
    • Component/s: Performance, security
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      In AC and VC we have to add the per cell ACL tags/ visibility tags to Cells. We get KeyValue objects and which need one backing array with key,value and tags. So in order to add a tag we have to recreate buffer the and copy the entire key , value and tags. We can avoid this
      Create a new Cell impl which wraps the original Cell and fro the non tag parts just refer this old buffer.
      This will contain a byte[] state for the tags part.
      Also we have to ensure we deal with Cells n write path not KV.

        Attachments

        1. HBASE-11870.patch
          15 kB
          Anoop Sam John

          Issue Links

          breaks

          Bug - A problem which impairs or prevents the functions of the product. HBASE-13520 NullPointerException in TagRewriteCell

          • Major - Major loss of function.
          • Closed
          is blocked by

          Improvement - An improvement or enhancement to an existing feature or task. HBASE-12176 WALCellCodec Encoders support for non-KeyValue Cells

          • Major - Major loss of function.
          • Closed

            Activity

              People

              • Assignee:
                anoop.hbase Anoop Sam John
                Reporter:
                anoop.hbase Anoop Sam John
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                Dates

                • Created:
                  Updated:
                  Resolved: