Re: [lvs-users] Connections through VIP are slow (with 5 seconds delay f

To: " users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: [lvs-users] Connections through VIP are slow (with 5 seconds delay for each connection)
From: "Nookala Satish Kumar" <nosaku@xxxxxxxxx>
Date: Thu, 18 Sep 2008 07:22:54 -0500
I made the DIP as the default gateway for the real servers. Also I am
using directly the IP addresses in keepalived configuration files,
instead of the host names. I am clueless what is taking longer time
for lookup? Is it from my client to VIP that is taking longer time for
lookup or is it between the director and the virtual servers?

Surprisingly I just ran WGET by enabling HTTP service one on of the
real servers. The download time for a sample file is alsmost same in
case of VIP as well as from the real server directly. In fact, if I
use VIP it was more faster.

Help me again.


On Thu, Sep 18, 2008 at 5:19 AM, Joseph Mack NA3T <jmack@xxxxxxxx> wrote:
> On Thu, 18 Sep 2008, Nookala Satish Kumar wrote:
>> Whenever I connect to the director's VIP the connection is slow with a
>> 5 second delay for each connection. But if I connect to the real
>> server directly, the connection is pretty fast.
> something is doing a lookup that is timing out. There's a
> lot of assumptions made for a stand alone server that don't
> work in an LVS, because the assumptions aren't explicit.
> Possibilitie include routing and dns lookup
> Joe
> --
> Joseph Mack NA3T EME(B,D), FM05lw North Carolina
> jmack (at) wm7d (dot) net - azimuthal equidistant map
> generator at
> Homepage It's GNU/Linux!
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