Single node, nval = 1

John Daily jdaily at
Thu Sep 11 08:27:22 EDT 2014

On Thu, Sep 11, 2014 at 7:42 AM, Dmitri Zagidulin <dzagidulin at>

> If you're running a single-node Riak instance to start with (such as a
> prototype web app), but there's the possibility of expanding the cluster
> and adding other nodes, you should run with n_val=3.  (It's not recommended
> to change the ring size in mid-stream).

Just a clarification on terminology here:
* Changing n_val (number of copies of data to be retained) in a running
environment can cause odd behavior
* Changing ring size (number of partitions containing data) is possible but

Changing neither would be best, but in this case Dmitri's referring to
n_val, not ring size.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the riak-users mailing list