[Gluster-devel] Introducing a new option to gluster peer command.
nsathyan at redhat.com
Tue Apr 1 05:01:42 UTC 2014
On 04/01/2014 08:23 AM, James wrote:
> On Mon, Mar 31, 2014 at 10:29 PM, Nagaprasad Sathyanarayana
> <nsathyan at redhat.com> wrote:
>> In the current design, gluster peer probe does the job of both probing the
>> server and adding it to trusted pool. Once the server is added to trusted
>> pool, it can be detached usingpeer detach command.
>> Wondering if it makes sense to bring in gluster peer attach command to add
>> the server to trusted pool. The peer probe command will only prove the
>> server mentioned and tells if it is reachable. It can also be enhanced to do
>> some diagnostics such as probing specific ports.
> Do I understand correctly:
> gluster peer attach would attach the probing server into the pool it
> is probing, correct?
> If so, and if it is already a member of a pool, could you join two
> different pools together?
> I don't know what the gluster internals implications are, but as long
> as I understand this correctly, then I think it would benefit the
> management side of glusterfs.
> It would certainly make peering more decentralized, as long as double
> peering or running a simultaneous peer attach and peer probe don't
> cause issues. This last point is very important :)
The "gluster peer attach" should work the same way as existing "gluster
peer probe". The new "gluster peer probe" shall only probe the peer and
not add it to the trusted pool. When we give /peer detach/ option, I
think it would be natural to expect a /peer attach/ command.
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