Uploaded image for project: 'HBase'
  1. HBase
  2. HBASE-8188

Avoid unnecessary row compare in StoreScanner

    XMLWordPrintableJSON

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.98.0, 0.94.7, 0.95.1
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      When scanner batching disable (which is the default) a row compare in StoreScanner avoided, because only entire rows of data are requested.
      This provides a slight performance gain, especially for tall tables (and when all data is in the cache)

        Attachments

        1. 8188-0.94.txt
          0.8 kB
          Lars Hofhansl
        2. 8188-0.94-experimental.txt
          4 kB
          Lars Hofhansl
        3. 8188-0.96.txt
          0.8 kB
          Lars Hofhansl
        4. 8188-0.96.txt
          0.8 kB
          Lars Hofhansl
        5. 8188-0.96.txt
          0.8 kB
          Lars Hofhansl
        6. 8188-0.96.txt
          0.7 kB
          Lars Hofhansl

          Activity

            People

            • Assignee:
              larsh Lars Hofhansl
              Reporter:
              larsh Lars Hofhansl
            • Votes:
              0 Vote for this issue
              Watchers:
              10 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: