PHP-FPM and concurrency

Reinis Rozitis r at
Thu Jan 28 13:08:39 MSK 2010

It is probably more related to how many connections at max a single browser instance keeps open to a single hostname.

For Firefox for example usually the default value is only 2. ( can search google for network.http.max-connections-per-server )
IE has 6 at least (but seems you are not using that).

Increase those and see if it helps.


----- Original Message ----- 
From: "Kiril Angov" <kupokomapa at>
To: <nginx at>
Sent: Thursday, January 28, 2010 10:01 AM
Subject: PHP-FPM and concurrency

> Hello,
> I have a strange problem maybe not related to nginx but it could very well be. So I make a long (time consuming) request to a PHP 
> page. Where that request is in progress, let's say 1 minute, with the SAME browser I cannot open another page from that same 
> "server {}" block. If within that minute I use ANOTHER browser to open a page from that "server {}" block, it does open just fine. 
> Which rules any database locks, for example. I have tested this with at least one more person, so it is not a browser 
> configuration problem. Also, I can open static files with the same browser which means that it is something related to the PHP 
> requests only.
> What can I try and where to look for the problem?
> Thanks you!
> Kiril
> _______________________________________________
> nginx mailing list
> nginx at

More information about the nginx mailing list