Hi Mark, The option "default_gossip_seed" is not a Riak option; at least not one I have seen. You are correct that it does not appear in the Riak source code. If this was an option it has been removed.
To form a Riak cluster you must tell a node about another node in the cluster using the "riak-admin join" command. A node only needs to be told about one other node in a cluster; Riak learns about other cluster nodes via gossip.The seeding process would look as follows: riak start riak-admin join ot...@node Currently, removing a node must be done via Erlang. Bug 571 has been filed to request a "remove" command: https://issues.basho.com/show_bug.cgi?id=571 Removing a node via Erlang: 1. Attach to a riak node riak attach 2. Get a local client {ok, C} = riak:local_client(). 3. Remove the node C:remove_from_cluster('n...@host'). 4 Detach from the node using CTRL+D ^D Thanks, Dan Daniel Reverri Developer Advocate Basho Technologies, Inc. d...@basho.com On Tue, Aug 3, 2010 at 9:58 AM, Mark Anderson <m...@opscode.com> wrote: > I'm playing around with setting up and tearing down clusters and I had > a few questions: > > Looking at the chef recipe for riak sets an option in riak_core > 'default_gossip_seed'; apparently this is intended to cue a newly spun > up node where to look to join the cluster. But for the life of me I > can't get it to work, and I can't find any mention of it in the > source. > What's the recommended way to seed a freshly spun up node with a seed > machine? > > I'm also trying to figure out how to evict a node from the ring. If > you have access to the machine, you can do 'riak-admin leave' but what > can you do if you don't? I'm imagining a usage pattern where you are > running a bunch of vhosted machines. One dies, and you spin up a new > machine, with a new node name to replace it. How do you get that old > machine out of the ring? > > The natural way to name nodes in ec2 is to do something like > r...@ec2_internal_ip. But once an instance is terminated, there is no > way to get that ip back. I suspect I'm doing things wrong here, so > suggestions for better configuration patterns are very welcome. > > _______________________________________________ > riak-users mailing list > riak-users@lists.basho.com > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com >
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