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From "Elliott Clark (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-12259) Bring quorum based write ahead log into HBase
Date Wed, 15 Oct 2014 00:15:34 GMT
Elliott Clark created HBASE-12259:

             Summary: Bring quorum based write ahead log into HBase
                 Key: HBASE-12259
                 URL: https://issues.apache.org/jira/browse/HBASE-12259
             Project: HBase
          Issue Type: Bug
    Affects Versions: 2.0.0
            Reporter: Elliott Clark

HydraBase ( https://code.facebook.com/posts/321111638043166/hydrabase-the-evolution-of-hbase-facebook/
) Facebook's implementation of HBase with Raft for consensus will be going open source shortly.
We should pull in the parts of that fb-0.89 based implementation, and offer it as a feature
in whatever next major release is next up. Right now the Hydrabase code base isn't ready to
be released into the wild; it should be ready soon ( for some definition of soon).

Since Hydrabase is based upon 0.89 most of the code is not directly applicable. So lots of
work will probably need to be done in a feature branch before a merge vote.

Is there anything clean up that needs to be done before the log implementation is able to
be replaced like this?

What's our story with upgrading to this? Are we ok with requiring down time ?

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