DNS load balancing

Ciro Iriarte cyruspy at gmail.com
Tue May 11 08:57:32 EDT 2010

2010/5/11 Andre Nathan <andre at digirati.com.br>:
> Hello
> I'm setting up a two-machine cyrus cluster using OCFS2 over DRBD. The
> setup is working fine, and I'm now considering the load balancing
> options I have.
> I believe the simplest option would be to simply rely on DNS load
> balancing. However, for this to work, I need to consider what happens
> when one of the cluster nodes fails, regarding the clients which access
> the cluster:
>  - Will IMAP and POP3 clients automatically try the second DNS entry if
>   connecting to the first one fails?
>  - Will the LMTP client also do this? I'm using the postfix LMTP client
>   for delivery.
> Does any one have experience with this kind of setup?
> Thanks in advance,
> Andre

LVS is quite simple to setup this days, there's no need to patch the
kernel with any mainstream distribution...


Ciro Iriarte

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