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From "Josh Elser (JIRA)" <>
Subject [jira] [Created] (ACCUMULO-3590) Rolling upgrade support
Date Fri, 13 Feb 2015 18:06:14 GMT
Josh Elser created ACCUMULO-3590:

             Summary: Rolling upgrade support
                 Key: ACCUMULO-3590
             Project: Accumulo
          Issue Type: Improvement
            Reporter: Josh Elser
             Fix For: 1.7.0

We really lack any support for rolling upgrades between versions of Accumulo.

Need to have a way to provide seamless upgrades between certain versions of Accumulo which
minimize any downtime/impact on users of the system.

Need to cover fundamental control features (like a rolling upgrade), changes to our serialized
data structures (help prevent us from goofing up serialization across versions -- thrift/protobuf/etc),
backwards/forward compatible RFile and WAL support (including control), lots of tests, and
lots of documentation.

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