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Posted to users@httpd.apache.org by Jan Vávra <va...@602.cz> on 2011/09/06 14:47:50 UTC
[users@httpd] only one worker process
Hello,
I'm developing a php module and I'd like to test if the module doesn't
consume memory and doesn't make a seg fault.
I'd like to make a multithreaded test and start only one worker process.
Can anybody help me with the proper configuration?
I have SLES11, 32bit. The server-tuning.conf I set to:
<IfModule prefork.c>
StartServers 1
MinSpareServers 1
MaxSpareServers 1
ServerLimit 20000
MaxClients 150
MaxRequestsPerChild 10000
</IfModule>
<IfModule worker.c>
StartServers 1
MinSpareThreads 25
MaxSpareThreads 75
ThreadLimit 64
MaxClients 150
ThreadsPerChild 25
MaxRequestsPerChild 10000
</IfModule>
KeepAlive On
MaxKeepAliveRequests 100
KeepAliveTimeout 15
<IfModule mod_setenvif.c>
BrowserMatch "Mozilla/2" nokeepalive
BrowserMatch "MSIE 4\.0b2;" nokeepalive downgrade-1.0
force-response-1.0
BrowserMatch "RealPlayer 4\.0" force-response-1.0
BrowserMatch "Java/1\.0" force-response-1.0
BrowserMatch "JDK/1\.0" force-response-1.0
BrowserMatch "Microsoft Data Access Internet Publishing
Provider" redirect-carefully
BrowserMatch "^WebDrive" redirect-carefully
BrowserMatch "^WebDAVFS/1.[012]" redirect-carefully
BrowserMatch "^gnome-vfs" redirect-carefully
</IfModule>
The apache compilation options are:
ca:/etc/apache2 # /usr/sbin/httpd2 -V
Server version: Apache/2.2.10 (Linux/SUSE)
Server built: Apr 13 2010 16:44:06
Server's Module Magic Number: 20051115:20
Server loaded: APR 1.3.3, APR-Util 1.3.4
Compiled using: APR 1.3.3, APR-Util 1.3.4
Architecture: 32-bit
Server MPM: Prefork
threaded: no
forked: yes (variable process count)
Server compiled with....
-D APACHE_MPM_DIR="server/mpm/prefork"
-D APR_HAS_SENDFILE
-D APR_HAS_MMAP
-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
-D APR_USE_SYSVSEM_SERIALIZE
-D APR_USE_PTHREAD_SERIALIZE
-D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
-D APR_HAS_OTHER_CHILD
-D AP_HAVE_RELIABLE_PIPED_LOGS
-D DYNAMIC_MODULE_LIMIT=128
-D HTTPD_ROOT="/srv/www"
-D SUEXEC_BIN="/usr/sbin/suexec2"
-D DEFAULT_PIDLOG="/var/run/httpd2.pid"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_LOCKFILE="/var/run/accept.lock"
-D DEFAULT_ERRORLOG="/var/log/apache2/error_log"
-D AP_TYPES_CONFIG_FILE="/etc/apache2/mime.types"
-D SERVER_CONFIG_FILE="/etc/apache2/httpd.conf"
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Re: [users@httpd] only one worker process
Posted by Prasanna Ram Venkatachalam <vp...@gmail.com>.
>
> I'd like to make a multithreaded test and start only one worker process.
> Can anybody help me with the proper configuration?
>
The MPM for above model should be worker MPM. Refer to this link
http://httpd.apache.org/docs/2.0/mod/worker.html
> <IfModule worker.c>
> StartServers 1
> MinSpareThreads 25
> MaxSpareThreads 75
> ThreadLimit 64
> MaxClients 150
> ThreadsPerChild 25
> MaxRequestsPerChild 10000
> </IfModule>
>
Add ServerLimit inside the above block and keep its value 1.
> The apache compilation options are:
>
> Server MPM: Prefork
> threaded: no
> forked: yes (variable process count)
> Server compiled with....
> -D APACHE_MPM_DIR="server/mpm/prefork"
>
Seems the apache is configured with prefork. That means multiple processes
and not threads as you can see from above.
You might need to reconfigure and compile with following option
--with-mpm=worker
Good luck
-Pras