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    Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Won't Fix
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
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      Description

      This snapshot will likely be the cheapest snapshot taking method – it rolls or drops a marker in the hlog when a snapshot request is made. This approach can be seen as an improvement upon copytable/export with similar consistency guarantees. Specifically, there will be "ragged edges", and happens-before relation on clients may not be consistent from a client's point of view but it will be useable for many backup for disaster recovery use cases.

      For example:

      If client 1 writes row a to region A and then row b to region B, a client happens-before enforcing snapshot would only be allowed to have neither a nor b, only a, or both a and b. Having only b should not be possible. This outcome would be possible with the log-roll snapshot.

        Attachments

        1. hbase-7291.v1.patch
          39 kB
          Jonathan Hsieh
        2. pre-hbase-7291.v1.patch
          1.11 MB
          Jonathan Hsieh
        3. snapshot-online-test-demo.jruby
          3 kB
          Jonathan Hsieh

          Activity

            People

            • Assignee:
              jmhsieh Jonathan Hsieh
              Reporter:
              jmhsieh Jonathan Hsieh
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                Updated:
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