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  1. HBase
  2. HBASE-430

Performance: Scanners and getRow return maps with duplicate data

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Details

    • Improvement
    • Status: Closed
    • Minor
    • Resolution: Fixed
    • None
    • 0.2.0
    • None
    • None

    Description

      Right now, whenever we get back multiple cells worth of data at a time, we do so in a map of HStoreKey->byte[]. This means that there is a duplicated Text row and long timestamp at the very least between every cell. This is quite a bit wasted. It also means we have to do a lot of translation every time.

      We could create a new Writable that contains just one row, one timestamp, and a map of Text->byte[].

      Attachments

        1. 430.patch
          31 kB
          Bryan Duxbury
        2. 430-v2.patch
          32 kB
          Bryan Duxbury
        3. 430-v3.patch
          37 kB
          Bryan Duxbury
        4. 430-v4.patch
          36 kB
          Bryan Duxbury
        5. 430-v5.patch
          36 kB
          Bryan Duxbury

        Issue Links

          is blocked by

          New Feature - A new feature of the product, which has yet to be developed. HBASE-489 CellValue class for transporting cell timestamp with cell value simultaneously

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Activity

            People

              bryanduxbury Bryan Duxbury
              bryanduxbury Bryan Duxbury
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              Dates

                Created:
                Updated:
                Resolved: