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Posted to commits@cassandra.apache.org by "Aleksey Yeschenko (JIRA)" <ji...@apache.org> on 2013/12/19 03:08:07 UTC

[jira] [Created] (CASSANDRA-6505) counters++ global shards 2.0 back port

Aleksey Yeschenko created CASSANDRA-6505:
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             Summary: counters++ global shards 2.0 back port
                 Key: CASSANDRA-6505
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6505
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Aleksey Yeschenko
            Assignee: Aleksey Yeschenko
             Fix For: 2.0.4


CASSANDRA-6504 introduces a new type of shard - 'global' - to 2.1. To enable live upgrade from 2.0 to 2.1, it's necessary that 2.0 nodes are able to understand the new 'global' shards in the counter contexts.

2.0 nodes will not produce 'global' shards, but must contain the merge logic.

It isn't a trivial code change ("non-trivial code in a non-trivial part of the code"), hence this separate JIRA issue.



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