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List:       keepalived-devel
Subject:    Re: [Keepalived-devel] healthcheckers fail
From:       Thomas Spreng <spreng () socket ! ch>
Date:       2006-03-29 9:30:41
Message-ID: 442A53C1.2020503 () socket ! ch
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Graeme Fowler wrote:
> Hi
> 
> On 29/03/2006 08:31, Thomas Spreng wrote:
>> I am trying to set up keepalived as a new lvs-nat loadbalancer (incl.
>> failover) for our apache servers.
>> VRRP failover and balancing seems to work fine (as far as I can tell by
>> now) but as soon as I enable any healthcheckers (tried HTTP_GET and
>> TCP_CHECK), one of the keepalived processes goes crazy and opens tons of
>> connections to the realservers until the director reaches the max.
>> connection limit.
> 
> You have no "delay_loop" value set in your virtual_server sections.
> 
> I'd have expected it to have a default of 1 second, but it appears there
> is no default delay so it just runs away...
> 
> As long as your delay_loop is greater than your connect_timeout, you
> won't see healthchecks falling over each other like this.

my bad, thanks for the hint. I'll test it this afternoon.

I also had other strange behaviours of keepalived when I let it run with
some bad config options. Is there any config parser/checker planned? I'd
really like to see such a feature since keepalived is a very crucial system.

cheers,

tom

-- 
----------------
- Thomas Spreng <spreng@id.unibe.ch>
- University of Bern
- Institute of Computer Science and Applied Mathematics
- Switzerland



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