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https://issues.apache.org/jira/browse/CASSANDRA-1015?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12976157#action_12976157
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Ryan King commented on CASSANDRA-1015:
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I fear that in going on own way we'll end up replicating a lot of what's
already been done in these frameworks.
Additionally, we make it much harder to to write code to comprehend the message
in another language. I know this sounds like a YAGNI, but I've found it quite
nice to be able to decode thrift RPC interchanges that are captured via tcpdump.
We have to rebuild a lot if we go our own way.
> 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
> Assignee: Gary Dusbabek
> 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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