MPM Event Module Configuration for Large Servers

mpm_event_module_large.conf

#
# MPM Event Module
#
# Large - 16 CPU / 32GB RAM
#
# https://httpd.apache.org/docs/2.4/mod/worker.html
# https://httpd.apache.org/docs/2.4/mod/event.html
#
# Matching WSGI Module Configuration
#   WSGIDaemonProcess @@@@@ processes=20 threads=3 display-name=%{GROUP}
#

<IfModule mpm_event_module>

    # Upper limit on configurable number of processes
    # https://httpd.apache.org/docs/2.4/mod/mpm_common.html#serverlimit
    # Default: 16
    ServerLimit         16

    # Number of threads created by each child process
    # https://httpd.apache.org/docs/2.4/mod/mpm_common.html#threadsperchild
    # Default: 25
#    ThreadsPerChild     25

    # Maximum number of connections that will be processed simultaneously
    # https://httpd.apache.org/docs/2.4/mod/mpm_common.html#maxrequestworkers
    # Default: MaxRequestWorkers * ThreadsPerChild = ServerLimit => 16 X 25 = 400
    # Reverse: MaxRequestWorkers / ThreadsPerChild = ServerLimit => 350 / 25 = 14
    MaxRequestWorkers   350

    # Sets the upper limit on the configurable number of threads per child process
    # https://httpd.apache.org/docs/2.4/mod/mpm_common.html#threadlimit
    # Default: 64
#    ThreadLimit         64

    # Limit on the number of connections that an individual child server will handle during its life
    # https://httpd.apache.org/docs/2.4/mod/mpm_common.html#maxconnectionsperchild
    # Default: 0 (No limit)
#    MaxConnectionsPerChild 0

    # Maximum length of the queue of pending connections
    # https://httpd.apache.org/docs/2.4/mod/mpm_common.html#listenbacklog
    # Default: 512
#    ListenBackLog       512

</IfModule>