Important: Nginx + Haproxy + Mongrel Question

We have configured nginx + haproxy + mongrels [ more than 150
instances].
While it works perfectly fine for small configuration, a larger set of
mongrels - fail completely.

I have attached the configuration file for your reference. Apologies for
the
inconvenience if this is coming into the wrong list.

Thanks in Advance

Asif

Hi Asif,

What fails completely ? HaProxy, Mongrel or Nginx ?

I noticed that 192.168.1.16 for instance had over 50 mongrels assigned
to it. At an average memory usage of 60-80 meg (just after startup)
that is an enormous amount of memory in use (if I understand your
config correctly), is the problem with the underlying server platform?
Possibly swapping, or spending all its time scheduling processes?

Cheers

Dave

Dave,
Each of those servers are 16G RAM, Quad Core, Dual Processor Machines by
Dell. So - the memory shouldn’t really be a problem.

Although someone did mention that ip_conntrack module might be a
problem.

I am not sure what the issue is and not able to understand - why
haproxy is
unable to route requests.

Can you please tell me if there could be some other issue?

regards

Asif

Hi Asif,

What do the haproxy logs say ?

Cheers

Dave

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