Yes
Envoyé de mon iPhone
On 20 janv. 2010, at 17:20, Robert <[email protected]> wrote:
Thanks Frédéric! So what you're saying is that the current DNS bas
ed
method for selecting a server is round robin, correct?
On Jan 20, 12:16 am, Frédéric Sidler <[email protected]>
wrote:
Neither scalr, not mysql-proxy, nor sqlrelay can propose you to
send your
request to the less loaded mysql server.
If you find the "graal", tell me. I'm interested too. But I never
found any
other solution than the Round Robin mode.
On Wed, Jan 20, 2010 at 5:07 AM, Robert <[email protected]>
wrote:
I was asked a question today that I think I know the answer to,
but I
need to confirm and I can't seem to find it written out anywhere.
If we have a farm with N MySQL slave instances, how do we select
which
instance to open the connection to? For example when I'm going to
do a
read I need to connect to a slave, but which one? Ideally we'd like
to select the most lightly loaded instance.
I think the answer is that using the domain name for instances of
that
role will randomly (or maybe round-robin) select an instance of that
role. That doesn't guarantee that the instance we select will be the
lightest loaded instance, but in general all instances will be
loaded
to about the same level.
Is that correct? If not, please clarify.
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