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Re: ipvs-nat performance problem?

To: Flavio Pescuma <edtfopa@xxxxxxxxxxxxxxxxxx>
Subject: Re: ipvs-nat performance problem?
Cc: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
From: Julian Anastasov <uli@xxxxxxxxxxxxxxxxxxxxxx>
Date: Sun, 5 Mar 2000 15:43:32 +0200 (EET)
        Hello,

On Sun, 5 Mar 2000, Flavio Pescuma wrote:

> Hi all,
> 
> I'm having a weird problem, see if someone can help me.  
> I've installed an ipvs-nat director on a Alpha DS10, running
> 2.2.13-ipvs.0.9.7 and also tried with 2.2.14-ipvs.0.9.7, I'm balancing a
> MX with a farm of 2 mail servers
> Everything works fine while traffic is not much, after that if I try a
> telnet to the IPVS ip port 25 I get a connect  ( Escape character is
> '^]'), and after almost 1 minute the sendmail greetings, if I tray the
> same thing at the same time from a real server to the other real the
> response is immediate.  At this same point the lines contain in ipchains
> -L -M is ~400 which should be OK, the other weirdness is if I create a
> second VIP with the same real servers  but no traffic sent to it but the
> same to the old VIP,  the response of the new VIP is good.  Any clue????

        Try to set "O Timeout.ident=0s" in sendmail.cf in your real
servers. Is that helps?


Regards

--
Julian Anastasov <uli@xxxxxxxxxxxxxxxxxxxxxx>



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