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  1. HBase
  2. HBASE-6427

Pluggable compaction and scan policies via coprocessors

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Details

    • New Feature
    • Status: Closed
    • Minor
    • Resolution: Fixed
    • None
    • 0.94.2
    • None
    • 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-notReady.txt
          26 kB
          Lars Hofhansl
        2. 6427-v1.txt
          28 kB
          Lars Hofhansl
        3. 6427-v2.txt
          37 kB
          Lars Hofhansl
        4. 6427-v3.txt
          44 kB
          Lars Hofhansl
        5. 6427-v4.txt
          49 kB
          Lars Hofhansl
        6. 6427-v5.txt
          49 kB
          Lars Hofhansl
        7. 6427-v7.txt
          58 kB
          Lars Hofhansl
        8. 6427-v10.txt
          59 kB
          Lars Hofhansl
        9. 6427-0.94.txt
          58 kB
          Lars Hofhansl
        10. 6427-0.94-addendum.txt
          0.6 kB
          Lars Hofhansl

        Issue Links

          is depended upon by

          New Feature - A new feature of the product, which has yet to be developed. HBASE-6428 Pluggable Compaction policies

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

          Sub-task - The sub-task of the issue HBASE-18793 Remove deprecated methods in RegionObserver

          • Major - Major loss of function.
          • Closed

          Activity

            People

              larsh Lars Hofhansl
              larsh Lars Hofhansl
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              Dates

                Created:
                Updated:
                Resolved: