Execute
dpkg -l | grep zen
Also check your syslog file maybe you could see "Too many open files"?
Sent from mobile
El 8 ago. 2016 9:58 p. m., "Scott Berry" <sc...@boompayments.com> escribió:
> Hi,
>
> I’ve removed the HTTP based farms since they were extremely limited in
> connections. When using a tool like loadimpact.com we would see the LB
> start slowing down and preventing connections from hitting the back-end
> servers around 100-200 connections on the farm. Meanwhile the 4 back-end
> servers had zero load and if I hit one directly it was instant response.
> The L4XNAT profile had no limitation on the smaller tests, we haven’t hit a
> larger test yet.
>
> My config was the most basic. Simple HTTP Farm with 4 back-end servers. No
> real changes from default config that I can recall.
>
> I can run the similar test again watching syslog and see if there are
> issues. I can also fail over to the backup and see if that has an issue.
>
> I don’t know where or how to tell what version of Zen is installed. It
> isn’t in the GUI I can see and I can’t find that info online. How to?
>
> *- - - - -*
> *Scott Berry*
> Lead Developer | Boom! Payments
> m: 1.661.478.7144
>
> From: Laura Garcia
> Reply-To: <zenloadbalancer-support@lists.sourceforge.net>
> Date: Sunday, August 7, 2016 at 11:55 PM
> To: "zenloadbalancer-support@lists.sourceforge.net"
> Subject: Re: [Zenloadbalancer-support] Max connections in HTTP profile
>
> Hi Scott, please share your HTTP configuration. Are you working with
> 3.10.1?
>
> Also, you can inspect the /var/log/messages searching for some system
> errors when the connections reach the limits.
>
> Kind Regards.
>
>
> Laura Garcia
> Zen Load Balancer Team
> www.zenloadbalancer.com
>
> On Fri, Aug 5, 2016 at 3:59 AM, Scott Berry <sc...@boompayments.com>
> wrote:
>
>> I assume we are running in to some limitation on max connections although
>> I can’t find any documentation on Zen or on Pound that discusses this.
>>
>> We are load balancing a Magento store. Originally I had two farms, one
>> for HTTP and one for HTTPS. Offloading SSL was one of the major goals.
>>
>> We did a soft launch and found that at around 200-400 connections on the
>> HTTP farm the response time slowed to a crawl. None of the servers (Zen,
>> App or DB) had much load at all. After banging my head around for a while I
>> switched to a L4XNAT profile (after reading a post somewhere about a
>> clustered Zen setup - front–end L4XNAT and then back-end HTTP Zen farms)
>> and that seemed to solve the problem.
>>
>> So question being firstly, why the limitation and what is causing it?
>> Resources were never an issue at all.
>>
>> I am ok with keeping the L4XNAT profile for the HTTP side of things but
>> then what happens when the HTTPS farm starts needing that kind of
>> connection size? I would rather not deal with SSL on each server, but if
>> that is the end result I will. I just can’t see how 400 connections should
>> be a limitation?
>>
>> Secondly, how now would I handle a redirect in Zen? I would like to get
>> people off the root and on to WWW and would rather not have to let the
>> traffic pass all the way back to the app servers before we do that. Almost
>> every first time connection will be this way. Since I can’t use HTTP farms
>> I can use the virtual host and redirect options. I suppose the only way is
>> to have a dedicated IP for www and for root and use another farm just for
>> redirection. But again I worry about connections… will that then end up
>> with connection limitations? Or not because it is just redirect and done?
>>
>> Any input?
>>
>> *- - - - -*
>> *Scott Berry*
>> Lead Developer | Boom! Payments
>> m: 1.661.478.7144
>>
>> ------------------------------------------------------------
>> ------------------
>>
>> _______________________________________________
>> Zenloadbalancer-support mailing list
>> Zenloadbalancer-support@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/zenloadbalancer-support
>>
>>
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