[Gluster-users] Native client reads from a replication volume
Kaleb S. KEITHLEY
kkeithle at redhat.com
Wed Sep 11 17:49:00 UTC 2013
On 09/11/2013 10:58 AM, Kaleb S. KEITHLEY wrote:
> On 09/11/2013 10:41 AM, Kal Black wrote:
>
>>
>> I used iptraf on the gluster servers and gluster client, and the results
>> showed that the client box is getting very close to double the total
>> size of the files being requested (once from each gluster server)
>
> All the servers send a reply. If the files are small I'm not surprised
> that the traffic is double for a replica 2 volume (triple for a replica
> 3 volume).
>
> The clients are going to ignore responses from all but one server.
>
I've been corrected. ;-)
The client sends a LOOKUP to all bricks. All servers will respond. The
first response the client gets dictates which server it will send
subsequent STAT, READ, etc., calls to.
--
Kaleb
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