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From "Nick Dimiduk (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-11634) Disallow non-atomic update operations when TIMELINE consistency is enabled
Date Thu, 31 Jul 2014 19:36:39 GMT
Nick Dimiduk created HBASE-11634:
------------------------------------

             Summary: Disallow non-atomic update operations when TIMELINE consistency is enabled
                 Key: HBASE-11634
                 URL: https://issues.apache.org/jira/browse/HBASE-11634
             Project: HBase
          Issue Type: Improvement
          Components: Client, Usability
    Affects Versions: 0.99.0, hbase-10070
            Reporter: Nick Dimiduk


Something to consider for the HBASE-10070 line of changes. When a client reads a timeline
consistent view of data, read-update-write operations are potentially destructive. When a
client is accepting TIMELINE reads, we should only allow server-side atomic update operations.

In a future state, we could offer a CRDT-based data type to further extend the set of write
operations that are guaranteed safe under this consistency model.

I may not have the semantics of the new client API correct, but this is the idea: do what
we can to protect users from the major dangers of this relaxed consistency model.



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