Concurent processes

[Peter-]

Hey guys,

I have a slight problem

I need to run a couple of concurent processes in the background, 10 at the moment. They're php scripts, I'm calling them with wget ("self request so to speak") and they need to run continually (check for new stuff to process, sleep 3 seconds, repeat).

Ok ...

Now, the problem is when I'm trying to navigate to my website, the pages take a lot to load. I'm assuming I've hit my MaxClients setting but "grep Max /etc/httpd/conf/httpd.conf" outputs:

# ServerLimit: maximum value for MaxClients for the lifetime of the server

# MaxClients: maximum number of server processes allowed to start

MaxClients 256

# MaxClients: maximum number of simultaneous client connections

MaxClients 300


This should be fine. I am running plesk 12 on a centos 6.6. Should I look somewhere else for "site specific" maximums?

CPU and memory are fine btw.

Thanks

 

[abdi]

Hi Peter,

Why NOT just create a cron-job and run the script using the CLI php ...
E.g

php /var/www/vhosts/domain.com/httpdocs/script.php

WGET puts the load on your web server which in return would affect your response times ...

 

[Peter-]

Hey

I'm using laravel 5.0 and not sure exactly how to load the exact methods from command line. It's way easier from http. Plus, I don't need to install mongo.so for command line either.

Can you help with the max clients thing?

Thanks!

 

[Peter-]

I tried increasing ServerLimit and MaxClients server wide from 256 to 512 but that doesn't fix it.
Also, "netstat | grep http | wc -l" outputs "35" at the moment.

Isn't there anything I can do to increase the # of connections to the server? It's really "idle" and makes no sense to block me now.

 

[pDecrette]

Are you running the site using Fast-CGI or PHP-FPM for nginx, or is this straight Apache PHP?

 

[Peter-]

Hi.

Was mod_php, now it's fcgid, had MaxProcessesClass (can't remember the exact name) = 8, changed to 20 and it's fine. My site was limited to only 8 concurent processes and since I only have 2 websites in there and it's a dedicaed machine, I don't need a setting that low.

Thanks!

 

[pDecrette]

Glad you found it. The defaults on some of this stuff are so ridiculous for modern servers. I wish Plesk released some guidelines to help us manage base server settings like this on machines that are obviously being used for web hosting.

Cheers,
- Paul

 

[Peter-]

Yeah, the docs are pretty poor unfortunately. And I have a feeling the limitations are so restrictive because most of these servers are being used as shared boxes, not dedicated machines, which usually have admins. I'm in the middle lol. Enough knowledge to want a dedicated machine but not enough to run it smoothly