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Re: Upstream least_conn behavior irregularity

John Watson
March 21, 2013 03:06PM
Well doesn't make sense when theres >4 concurrent requests

At any given time there's around 12 active_connections, but sock-3 is still
never being used


On Thu, Mar 21, 2013 at 9:34 AM, John Watson <john@disqus.com> wrote:

> Ohhhh... that makes complete sense now.
>
> Had 4 workers.
>
> Thanks!
>
>
> On Thu, Mar 21, 2013 at 4:47 AM, Ruslan Ermilov <ru@nginx.com> wrote:
>
>> On Thu, Mar 21, 2013 at 01:45:14AM -0700, John Watson wrote:
>> > Was investigating some issues today when we noticed that least_conn
>> wasn't
>> > behaving as expected.
>> > upstream backend {
>> > least_conn;
>> > server unix:/tmp/sock-1.sock;
>> > server unix:/tmp/sock-2.sock;
>> > server unix:/tmp/sock-3.sock;
>> > }
>> > The expected behavior for 4 simultaneous requests it should
>> distribute
>> > them:
>> > sock-1: 2
>> > sock-2: 1
>> > sock-3: 1
>> > However, what we're seeing is:
>> > sock-1: 3
>> > sock-2: 1
>> > sock-3: 0
>> > Which coincidentally lines up with the number of requests a socket
>> can
>> > service simultaneously.
>> > This is using 1.2.7
>>
>> And the number of configured worker processes is?
>>
>> _______________________________________________
>> nginx mailing list
>> nginx@nginx.org
>> http://mailman.nginx.org/mailman/listinfo/nginx
>>
>
>
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Subject Author Posted

Upstream least_conn behavior irregularity

John Watson March 21, 2013 04:46AM

Re: Upstream least_conn behavior irregularity

Ruslan Ermilov March 21, 2013 07:48AM

Re: Upstream least_conn behavior irregularity

John Watson March 21, 2013 12:36PM

Re: Upstream least_conn behavior irregularity

John Watson March 21, 2013 03:06PM

Re: Upstream least_conn behavior irregularity

Ruslan Ermilov March 21, 2013 03:30PM

Re: Upstream least_conn behavior irregularity

John Watson March 21, 2013 04:04PM



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