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Hey Sameer,
We're just using negotiate, not both. Sorry if I made it confusing. Part of
the problem is that most of our websites are database driven and then page
we check loads a bunch of data objects, so sometimes during high traffic
load, it may take 15-20 sec for the page to load, so I have to increase the
negotiate timeout to something much higher to account for this, or else the
thing would be failing over constantly. For us, a simple connect check
wouldn't necessarily be a true test if the website is functioning properly.
The IP could be up and pass the Ldirector test, but if the page doesn't
display properly, then it's useless and should certainly failover. We're
balancing windows machines, and sometimes and they don't just fail like
that, the IP will be up, but the website wouldn't be displaying.
Unfortunate, but true...
I've tried to pair the negotiate timeouts with the site itself on a
case-by-case basis hoping to minimize the delay during startup and failover.
It seems I don't have much choice. I guess I just have to hope that the
Ldirectord doesn't randomly go down, but that's why it's on Linux right? :)
Thanks,
Brandon
----- Original Message -----
From: "Sameer Garg" <sameer.garg@xxxxxxxxx>
To: "LinuxVirtualServer.org users mailing list."
<lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Sent: Friday, February 06, 2009 11:06 PM
Subject: Re: [lvs-users] Ldirector Startup Delay
Hi Brandon,
I am using LVS in a scenario where we are load balancing 20 different
subdomains across 40+ machines and have yet to experience a delay. Why
are you using two types of checks: negotiate and http check? I use
http and it works like a charm.
Sameer
On Wed, Jan 14, 2009 at 1:44 AM, Brandon Hilkert <bhilkert@xxxxxx> wrote:
> We're trying to balance 12 or so sites off this one ldirector box. Because
> we use the negotiate check method and check for a keyword on a page,
> sometimes there is a few minute delay when the service starts because it
> goes site by site and checks each one, then brings it up upon successfully
> find the keyword.
>
> Is there any way to have the service automatically bring everything up and
> then go into its checking routine, but first assume all the real servers
> are up?
>
> This would help us avoid a few minutes of downtime if the machine/service
> were to be restarted.
>
> Thanks,
> Brandon
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