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From Gary Dusbabek <>
Subject Re: network compatibility from 0.6 to 0.7
Date Thu, 05 Aug 2010 15:13:12 GMT
On Thu, Aug 5, 2010 at 10:05, Jonathan Ellis <> wrote:
> The situation today is that network compatibility in trunk has been
> broken without us noticing for a while now -- in CASSANDRA-956
> (according to git annotate) we changed ColumnFamily serialization in a
> non-backwards-compatible way.

956 was all about streaming, not CF serialization.  Still, it breaks
network compatibility with respect to streaming.  The IClock changes
were more likely to have broken CF serialization.

> Given the difficulty on the client side of mixing 0.6 and 0.7, most
> sites are going to end up doing a Big Bang upgrade anyway.  So is it
> really worth a lot of effort on the network protocol side?

My opinion: no.  But I don't have to upgrade a huge cluster.


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