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From Michal Michalski <mich...@opera.com>
Subject Re: Cassandra 1.1.2 -> 1.1.8 upgrade
Date Mon, 11 Feb 2013 07:05:50 GMT

> 2) Upgrade one node at a time, running the clustered in a mixed
> 1.1.2->1.1.9 configuration for a number of days.

I'm about to upgrade my 1.1.0 cluster and
http://www.datastax.com/docs/1.1/install/upgrading#info says:

"If you are upgrading to Cassandra 1.1.9 from a version earlier than 
1.1.7, all nodes must be upgraded before any streaming can take place. 
Until you upgrade all nodes, you cannot add version 1.1.7 nodes or later 
to a 1.1.7 or earlier cluster."

Which one is correct then? Can I run mixed 1.1.2 (in my case 1.1.0) & 
1.1.9 cluster or not?

M.

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