Apache2 MPM prefork, worker, event module configure-switch to other module and check running MPM
Apache2 MPM prefork, worker, event module configure-switch to other module and check running MPM @Mr.duvi
for tutorial link:-
https://stackoverflow.com/a/76578164/...
angled bracket IfModule mpm_event_module angled bracket
StartServers 3
MinSpareThreads 75
MaxSpareThreads 250
ThreadLimit 64
ThreadsPerChild 25
MaxRequestWorkers 400
MaxConnectionsPerChild 0
angled bracket /IfModule angled bracket
The default values for MaxRequestWorkers are calculated like this:
MaxRequestWorkers 400 (16 x 25 = 400)
ServerLimit 16 (default)
ThreadsPerChild 25 (default)
=========================
You will see the following lines
StartServers 5
MinSpareServers 5
MaxSpareServers 10
MaxRequestWorkers 150
MaxConnectionsPerChild 0
You can change them to the following configuration to increase max requests per second. The following configuration supports up to 8000 concurrent users
IfModule mpm_worker_module
ServerLimit 250
StartServers 10
MinSpareThreads 75
MaxSpareThreads 250
ThreadLimit 64
ThreadsPerChild 32
MaxRequestWorkers 8000
MaxConnectionsPerChild 10000
/IfModule
You can also add the above lines to Apache web server configuration file, or Virtual host configuration file.
Let’s quickly look at the parameters
Serverlimit – Maximum number of Apache processes
StartServers – Number of processes to start when you start running Apache
MinSpareThreads/MaxSpareThreads – Number of threads to keep idle without being killed
ThreadsPerChild – Number of threads per process
MaxRequestWorkers – Number of concurrent connections to be supported. This is the main directive that you need to change to increase max connections in Apache
MaxConnectionsPerChild – Number of connections to be handled by each child before it is killed
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