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From "techpyaasa ." <>
Subject Can nodes in c* cluster run different versions ?
Date Wed, 16 Nov 2016 10:12:34 GMT
Hi all,

We are currently running c*-2.0.17 with 2 datacenters each with 18 nodes.

We like to upgrade to c*-2.1.16. Can we upgrade first all nodes(one by one)
in one dc and then go to next data center.

As it might take few days as it will have 'upgrade sstables' , so just
wanted to know would be there any possibility during this mismatch of c*
version among nodes in cluster during this upgrade process?


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