判斷apache的工作模式是prefork模式還是worker模式

2024-08-27 18:22:21

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本文章來給各位同學介紹判斷apache的工作模式是prefork模式還是worker模式，測試方法我們只要使用http來操作，apache常用的工作模式有prefork和worker模式，運行命令httpd -l 或者apache2 -l ，輸出的結果中如果含有prefork.c，那就是prefork模式，如果結果中含有worker.c，那就是worker模式。

知道模式之后我們可以在apache的confextrahttpd-mpm.conf 進行編輯了

#

# Server-Pool Management (MPM specific)

#

#

# PidFile: The file in which the server should record its process

# identification number when it starts.

#

# Note that this is the default PidFile for most MPMs.

#

<IfModule !mpm_netware_module>

    PidFile "logs/httpd.pid"

</IfModule>

#

# The accept serialization lock file MUST BE STORED ON A LOCAL DISK.

#

<IfModule !mpm_winnt_module>

<IfModule !mpm_netware_module>

LockFile "logs/accept.lock"

</IfModule>

</IfModule>

#

# Only one of the below sections will be relevant on your

# installed httpd.  Use "apachectl -l" to find out the

# active mpm.

#

# prefork MPM

# StartServers: number of server processes to start

# MinSpareServers: minimum number of server processes which are kept spare

# MaxSpareServers: maximum number of server processes which are kept spare

# MaxClients: maximum number of server processes allowed to start

# MaxRequestsPerChild: maximum number of requests a server process serves

<IfModule mpm_prefork_module>

    StartServers          5

    MinSpareServers       5

    MaxSpareServers      10

    MaxClients          150

    MaxRequestsPerChild   0

</IfModule>

# worker MPM

# StartServers: initial number of server processes to start

# MaxClients: maximum number of simultaneous client connections

# MinSpareThreads: minimum number of worker threads which are kept spare

# MaxSpareThreads: maximum number of worker threads which are kept spare

# ThreadsPerChild: constant number of worker threads in each server process

# MaxRequestsPerChild: maximum number of requests a server process serves

<IfModule mpm_worker_module>

    StartServers          2

    MaxClients          150

    MinSpareThreads      25

    MaxSpareThreads      75

    ThreadsPerChild      25

    MaxRequestsPerChild   0

</IfModule>

# BeOS MPM

# StartThreads: how many threads do we initially spawn?

# MaxClients:   max number of threads we can have (1 thread == 1 client)

# MaxRequestsPerThread: maximum number of requests each thread will process

<IfModule mpm_beos_module>

    StartThreads            10

    MaxClients              50

    MaxRequestsPerThread 10000

</IfModule>

# NetWare MPM

# ThreadStackSize: Stack size allocated for each worker thread

# StartThreads: Number of worker threads launched at server startup

# MinSpareThreads: Minimum number of idle threads, to handle request spikes

# MaxSpareThreads: Maximum number of idle threads

# MaxThreads: Maximum number of worker threads alive at the same time

# MaxRequestsPerChild: Maximum  number of requests a thread serves. It is

#                      recommended that the default value of 0 be set for this

#                      directive on NetWare.  This will allow the thread to

#                      continue to service requests indefinitely.

<IfModule mpm_netware_module>

    ThreadStackSize      65536

    StartThreads           250

    MinSpareThreads         25

    MaxSpareThreads        250

    MaxThreads            1000

    MaxRequestsPerChild      0

    MaxMemFree             100

</IfModule>

# OS/2 MPM

# StartServers: Number of server processes to maintain

# MinSpareThreads: Minimum number of idle threads per process,

#                  to handle request spikes

# MaxSpareThreads: Maximum number of idle threads per process

# MaxRequestsPerChild: Maximum number of connections per server process

<IfModule mpm_mpmt_os2_module>

    StartServers           2

    MinSpareThreads        5

    MaxSpareThreads       10

    MaxRequestsPerChild    0

</IfModule>

# WinNT MPM

# ThreadsPerChild: constant number of worker threads in the server process

# MaxRequestsPerChild: maximum  number of requests a server process serves

<IfModule mpm_winnt_module>

    ThreadsPerChild      150

    MaxRequestsPerChild    0

</IfModule>