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You're reading from Linux Networking Cookbook

Product typeBook

Published inJun 2016

Publisher

ISBN-139781785287916

Edition1st Edition

Tools

Ubuntu Server

Concepts

Networking

Authors (2):

Agnello Dsouza

Gregory Boyce

View More author details

Improving scaling with the Worker MPM

Apache2 offers a variety of Multi-Processing Modules (MPM) for defining how the daemon will handle scaling. The default is typically prefork, which is a simple MPM which uses separate processes for handling each request. Scaling can be improved by using the Worker MPM or the newer Event MPM, which utilize threading in addition to processes in order to improve performance.

How to do it…

Configuring the worker MPM on Ubuntu 14.04.

Ubuntu 14.04 uses the multi-threaded Event MPM by default, but it may be disabled automatically if any non-threadsafe modules such as mod_php are enabled.

To determine which MPM is in use, execute a2query –M in order to determine what is configured.

You may then swap out the existing MPM with:

a2dismod mpm_$(a2query –M)
a2enmod mpm_worker
service apache2 restart

Note

Note:

That the preceding action will fail if you have any non-thread safe modules enabled.

Configuring the Worker MPM on CentOS 7

CentOS 7 uses the prefork MPM by default...

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Linux Networking Cookbook

Published in: Jun 2016Publisher: ISBN-13: 9781785287916

Authors (2)

Agnello Dsouza

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