Migrating to riak 2.1.4, selecting a specific multi-backend from the Java Client
mkessler at basho.com
Wed Aug 10 03:21:53 EDT 2016
On 9 August 2016 at 15:42, Henning Verbeek <hankipanky at gmail.com> wrote:
> We're slowly migrating our application from Riak KV 1.4 to Riak KV
> 2.1.4, and at the same time riak-java-client 1.4.x to riak-java-client
> 2.0.6. We are doing this by adding seven new Riak KV 2.1 nodes to the
> ring, and later removing the seven Riak KV 1.4 nodes from the ring.
> For a few days, the cluster will consist of a mix.
This plan will generate a lot of unnecessary data shuffling in the entire
cluster. Each time a node is added or removed from the ring, the claim
algorithm will re-assign partitions to/from all nodes. Please consider
updating the existing nodes in place. For more information see the
documentation. Please let us know if any of the documentation is
unclear, so that we can make it better.
Client Services Engineer
Basho Technologies Limited
Registered Office - 8 Lincoln’s Inn Fields London WC2A 3BP Reg 07970431
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