Zimbra Load Balancing

[Srikanth G]

Hi Folks,

Please any one can address this query

How zimbra supports load balencing ? for example if I have the 10 MTA servers in Production

Pls provide the solution

[sn00p]

What exactly do you want to balance?
What is the purpose to have 10 MTA in production?

You have huge outgoing traffic, or incoming? Or huge-sized messages? so on

[Srikanth G]

Yes, Exactly I want handle huge outgoing and incoming mail traffic
Pls provide the information that how I can handle?

[sn00p]

Simple multi-server installation described in Zimbra-wiki and DNS manipulations. Load balancing is made by making appropriate records in DNS. For example

sn00p@home:/home$ nslookup -q=MX gmail.com
Server: 91.151.241.6
Address: 91.151.241.6#53

Non-authoritative answer:
gmail.com mail exchanger = 5 gmail-smtp-in.l.google.com.
gmail.com mail exchanger = 10 alt1.gmail-smtp-in.l.google.com.
gmail.com mail exchanger = 20 alt2.gmail-smtp-in.l.google.com.
gmail.com mail exchanger = 30 alt3.gmail-smtp-in.l.google.com.
gmail.com mail exchanger = 40 alt4.gmail-smtp-in.l.google.com.

gmail-smtp-in.l.google.com internet address = 209.85.219.72
alt1.gmail-smtp-in.l.google.com internet address = 209.85.220.36
alt2.gmail-smtp-in.l.google.com internet address = 209.85.216.102
alt3.gmail-smtp-in.l.google.com internet address = 209.85.147.27
alt4.gmail-smtp-in.l.google.com internet address = 209.85.201.114

We have 2 MTA for ~25000 accounts with average traffic 15000 letters (1,5mb each) for a day.

[uxbod]

That will provide round-robin but not true load balancing. If you require that then you would probably need to purchase a product that can ascertain load and availability on the target server(s).

[zydoon]

round robin should be enough as it is a load balancing technique

but in the zimbra side, do we need to configure something ?

these 5 ou 10 servers has to be aware of each other, do they ?

[Klug]

Originally Posted by zydoon

round robin should be enough as it is a load balancing technique
but in the zimbra side, do we need to configure something ?
these 5 ou 10 servers has to be aware of each other, do they ?

As long as they're part of the same infrastructure, they do know about themselves...

You just need to install several LDAP replica and then setup the MTA to use the replica (and no hit the main LDAP).