Details

    • Type: New Feature
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.92.0
    • Fix Version/s: 0.94.0
    • Component/s: regionserver
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      Parent allows for a cluster to retain rows for a TTL or keep a minimum number of versions.
      However, if a client deletes a row all version older than the delete tomb stone will be remove at the next major compaction (and even at memstore flush - see HBASE-4241).
      There should be a way to retain those version to guard against software error.

      I see two options here:
      1. Add a new flag HColumnDescriptor. Something like "RETAIN_DELETED".
      2. Folds this into the parent change. I.e. keep minimum-number-of-versions of versions even past the delete marker.

      #1 would allow for more flexibility. #2 comes somewhat naturally with parent (from a user viewpoint)

      Comments? Any other options?

        Attachments

        1. 4536-v16.txt
          96 kB
          Lars Hofhansl
        2. 4536-v15.txt
          90 kB
          Lars Hofhansl

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              • Assignee:
                lhofhansl Lars Hofhansl
                Reporter:
                lhofhansl Lars Hofhansl
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                • Created:
                  Updated:
                  Resolved: