Hi Michael,

There is no hard coded limit to the number of nodes that can belong to a
cluster. Depending on how quickly you are adding nodes to the cluster you
may be running into an issue with the ring not converging on a single state.

Can you try using the "riak-admin ringready" command between each join of a
node? This command will return TRUE if the nodes all agree on a particular
ring state. You should run this command until it returns TRUE after each
join.

Also, Alexander is correct; you should deploy your nodes with an increased
value for the "ring_creation_size" parameter in app.config. The typical
recommendation is to have a minimum of 10 partitions per node and the value
should be a power of 2 (64, 128, 256, 512, 1024). For a 63 node cluster a
value of 1024 would work well.

Thanks,
Dan

Daniel Reverri
Developer Advocate
Basho Technologies, Inc.
d...@basho.com


On Thu, Sep 30, 2010 at 12:02 PM, Alexander Sicular <sicul...@gmail.com>wrote:

> The default vnode number is 64. If you are connecting 63 physical nodes
> togeter in one riak cluster than you really want to increase the number of
> vnodes. There is some recommended metric for physical nodes to vnodes. I
> think it's like a minimum of 4 vnodes per physical node. But I could be
> totally making that up.
>
> -Alexander.
>
>
> @siculars on twitter
> http://siculars.posterous.com
>
> Sent from my iPhone
>
> On Sep 30, 2010, at 14:26, Michael Colussi <mcolu...@gmail.com> wrote:
>
> Hey guys,
>
> My team was trying to launch a 63 node Riak cluster yesterday, using
> version 0.13rc3 and the bitcask backend.
>
> All 63 nodes agreed that the ring consisted of nodes 1-42 only.
>
> Any ideas?  Is there a hardcoded limit to the number of nodes allowed?
>
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