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From "Sibbald, Charles" <>
Subject Upgrading from Cassandra 1.2.14 to Cassandra 2.10
Date Thu, 29 Jan 2015 14:15:37 GMT
Hi All,

I am looking into the possibility of upgrading from Cassandra 1.2.14 to Cassandra 2.1 in the
following manor.

I have a large Cassandra cluster with dozens of nodes, and would like to build new instances
at version 2.1 to join the cluster and once they have successfully joined the rink these should
then stream data in.

Once they have fully joined the cluster I would like to decommission a single Cassandra 1.2.14
instance, and repeat.

Due to the fact that our 2.1 installations have a different directory layout we would like
to go with this ‘streaming’ option for the upgrade rather than an inplace upgrade.

Does anyone foresee any issues with this.

Thanks in advance.


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