Change apache mpm from event in prefork

Question

I recently installed Apache / 2.4.6 from the source. MPM is currently enabled by mpm_event_module. I want to enable mpm but don’t know where to do it. I know about changing the mpm module from / etc / sysconfig / httpd when installing apache using yum. But in my case, since installinon is the source, I could not do the same. I tried recompiling apche using './configure --prefix = / usr / local / apache --enable-module = prefork', but mpm is still mpm_event_module. It’s clear that the problem is related to the definition of prefork as mpm.

I could also see that there is a prefork.c module in the installation directory. There must be a way to define it as mpm.

Did anyone help.

Answer 1

In versions prior to 2.4, you cannot change the MPM of Apache2 binary installation at run time.

You need to compile Apache with the desired MPM using the command line --with-mpm=MODULE NAME in the config script. To modify MPM, the binary must be rebuilt.

You can determine which MPM Apache2 is currently built by running apache2 -l or httpd -l on the command line.

Brief but very clear documentation on this subject:

http://httpd.apache.org/docs/2.2/mpm.html

In version 2.4, you can also create MPMs as dynamic modules that allow you to modify MPMs at run time.

http://httpd.apache.org/docs/2.4/mpm.html#dynamic