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https://issues.apache.org/jira/browse/CASSANDRA-1015?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stu Hood updated CASSANDRA-1015:
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Fix Version/s: 0.8
Issue Type: Improvement (was: Wish)
We would really like to accomplish this for 0.8, and to make the 0.7 -> 0.8
upgrade the last one that requires cluster downtime.
> Internal Messaging should be backwards compatible
> -------------------------------------------------
>
> Key: CASSANDRA-1015
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1015
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Ryan King
> Priority: Critical
> Fix For: 0.8
>
>
> Currently, incompatible changes in the node-to-node communication prevent
> rolling restarts of clusters.
> In order to fix this we should:
> 1) use a framework that makes doing compatible changes easy
> 2) have a policy of only making compatible changes between versions n and n+1*
> * Running multiple versions should only be supported for small periods of
> time. Running clusters of mixed version is not needed here.
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