[Gluster-devel] Managing etcd (4.0)
kshlmster at gmail.com
Fri Sep 11 05:34:10 UTC 2015
One thing I read recently was that with etcd2, etcd nodes can operate
in something called a proxy mode (in either r/w or ro). Any new etcd
that joins the cluster after (IIRC) 9 automatically become a proxy
node. I'm trying to find the document/blog post/forum comment where I
On Thu, Sep 10, 2015 at 6:21 PM, Jeff Darcy <jdarcy at redhat.com> wrote:
>> I've a follow up question here. Could you elaborate the difference
>> between *use* & *join*?
> Venky's interpretation was the same as what I had intended. "Join" means
> that the new node becomes both a server and client for the existing etcd
> cluster. "Use" means that it becomes a client only, relinquishing its
> role as a server for its own (one-node) cluster.
>> consul/etcd documentation says that the ideal configuration is to have
>> 3-5 servers to form the cluster. The way I was thinking about it is
>> during peer probe we would check whether cluster has already gotten the
>> enough number of servers to form the cluster, if not then consider the
>> other end to join as a etcd server otherwise act as a client. Thoughts?
> We could do this automatically. Good idea. The one caveat is that,
> without topology information, we can't really do a good job ourselves of
> ensuring that the etcd servers are properly spread across racks (or
> switches or power supplies). Maybe the option should be join/use/auto,
> with "auto" as the default but with potential for a user override.
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