Measuring Riak disk usage
ben at benmccann.com
Wed Apr 10 14:17:02 EDT 2013
Cool. Thanks for the explanation.
On Wed, Apr 10, 2013 at 10:55 AM, Reid Draper <reiddraper at gmail.com> wrote:
> On Apr 10, 2013, at 1:45 PM, Jeremiah Peschka <jeremiah.peschka at gmail.com>
> If you've installed from the apt/yum repository you've installed a single
> Riak node on your machine. Riak, though, is configured by default to write
> data to three servers. If some of those servers aren't available, Riak is
> going to write to a different server via hinted handoff. Since you are
> only running one node, that single node receives all copies of your data in
> the hopes that some day the other Riak servers in the cluster will come
> back for their data.
> This isn't quite true. A single node cluster is just going to simply store
> three copies on 3 of its local vnodes. No hinted handoff is involved. If
> you add nodes to the cluster, as Evan said, data will be distributed
> amongst them.
> tl;dr, Riak will store three copies on your data, by default, even if
> you're using a single server.
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