What are disadvantages of using worker over prefork?

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#1 Fri, 04/25/2014 - 09:40
amityweb

What are disadvantages of using worker over prefork?

Just had a server OOM on me, Apache was the culprit, server kept killing it.

Looking online websites suggest use worker as it uses less RAM, and is faster?

I just switched, all seems to be fine.

So I wanted to know if there are any disadvantages, other than not being able to use mod_php because I dont think we are (servers are created using FastCGI by default). My concern is, why is it not default if its better, are there issues with it?

Thanks!

Fri, 04/25/2014 - 12:20
andreychek

Howdy,

Using the Worker mode is a good way to go, if you don't need mod_php.

A lot of folks want the ability to use mod_php, or other modules that aren't thread-safe, so the distro's default of the Prefork mode is kept.

However, mod_php is the most common module that's not thread safe -- if you don't need that, you should be good!

-Eric

Fri, 04/25/2014 - 16:15
amityweb

I dont know if I "need" mo_php though. We develop in PHP, have PHP based websites and CMSs. But they are working with FastCGI and not mod_php.

Why would one need mod_php if PHP systems work with FastCGI?

I read online SquirrelMail and PhpMyAdmin as a server wide system wont work, but am fine with that.

Just trying to understand if worker will be totally fine for us.

Thanks!

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