Yes, that is true. Daniel Reverri Developer Advocate Basho Technologies, Inc. d...@basho.com
On Thu, Sep 30, 2010 at 4:27 PM, Alexander Sicular <sicul...@gmail.com>wrote: > Dan, > Is it true that "ring_creation_size" should only be altered at the > creation of a cluster? Once you already have physical nodes in a cluster you > shouldn't adjust the "ring_creation_size". True? > > Thanks, Alexander. > > > @siculars on twitter > http://siculars.posterous.com > > Sent from my iPhone > > On Sep 30, 2010, at 19:16, Dan Reverri <d...@basho.com> wrote: > > 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>d...@basho.com > > > On Thu, Sep 30, 2010 at 12:02 PM, Alexander Sicular < <sicul...@gmail.com> > 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>http://siculars.posterous.com >> >> Sent from my iPhone >> >> On Sep 30, 2010, at 14:26, Michael Colussi < <mcolu...@gmail.com> >> 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? >> >> _______________________________________________ >> riak-users mailing list >> <riak-users@lists.basho.com>riak-users@lists.basho.com >> <http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com> >> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com >> >> >> _______________________________________________ >> riak-users mailing list >> <riak-users@lists.basho.com>riak-users@lists.basho.com >> <http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com> >> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com >> >> > _______________________________________________ > riak-users mailing list > riak-users@lists.basho.com > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com > >
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