<html>
<head>
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
On 11/05/2016 05:47 AM, Fariborz Mafakheri wrote:<br>
<blockquote
cite="mid:CAB_sysrZv6xe7zWAeo=x9mKxHad3FMrdBmfme2f-xMEqXejh5w@mail.gmail.com"
type="cite">
<div dir="ltr">
<div dir="auto" style="word-wrap:break-word">Hi all,
<div><br>
</div>
<div>I have a gluster volume with 4 bricks(srv1, srv2, srv3
and srv4). srv2 is replicate of srv1 and srv3 is replicate
of srv3. each of this bricks has 1.7TB data. </div>
<div>I am gonna replace srv2 and srv4
<div class="gmail_default"
style="font-family:tahoma,sans-serif;display:inline">
with two new servers(srvP2 and srvP4). srvP2 and srvP4 are
in another datacenter and as I said each brick has 1.7TB
so is there anything that I should be aware of when I do
the replace-brick command? I</div>
</div>
<div>
<div class="gmail_default"
style="font-family:tahoma,sans-serif;display:inline"> am
just worried that may be any problem happened because my
data is a lot.</div>
</div>
<div>
<div class="gmail_default"
style="font-family:tahoma,sans-serif;display:inline"><br>
</div>
</div>
</div>
</div>
</blockquote>
<br>
The most common problem with that kind of change is networking.
People forget to open up firewalls, don't have routes from their
clients, etc.<br>
<br>
When you mirror between datacenters, the clients will be connecting
to both. This will amplify any latency so if that's bad your writes,
lookups, etc. will suffer.<br>
</body>
</html>