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  1. HBase
  2. HBASE-6427

Pluggable compaction and scan policies via coprocessors

    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.94.2
    • Component/s: None
    • Labels:
      None

      Description

      When implementing higher level stores on top of HBase it is necessary to allow dynamic control over how long KVs must be kept around.
      Semi-static config options for ColumnFamilies (# of version or TTL) is not sufficient.

      This can be done with a few additional coprocessor hooks, or by makeing Store.ScanInfo pluggable.

      Was:
      The simplest way to achieve this is to have a pluggable class to determine the smallestReadpoint for Region. That way outside code can control what KVs to retain.

        Attachments

        1. 6427-0.94.txt
          58 kB
          Lars Hofhansl
        2. 6427-0.94-addendum.txt
          0.6 kB
          Lars Hofhansl
        3. 6427-notReady.txt
          26 kB
          Lars Hofhansl
        4. 6427-v1.txt
          28 kB
          Lars Hofhansl
        5. 6427-v10.txt
          59 kB
          Lars Hofhansl
        6. 6427-v2.txt
          37 kB
          Lars Hofhansl
        7. 6427-v3.txt
          44 kB
          Lars Hofhansl
        8. 6427-v4.txt
          49 kB
          Lars Hofhansl
        9. 6427-v5.txt
          49 kB
          Lars Hofhansl
        10. 6427-v7.txt
          58 kB
          Lars Hofhansl

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              • Assignee:
                lhofhansl Lars Hofhansl
                Reporter:
                lhofhansl Lars Hofhansl
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                Dates

                • Created:
                  Updated:
                  Resolved: