Dear Graham,
- Apache prefork MPM settings: I have not touched it yet, thus it is
default:
- mod_wsgi version is 3.4, refer to your guide line here
<https://groups.google.com/forum/#!topic/modwsgi/bCEGfcXPQFE>
- Apache version:
app@application:~/public_html/logs$ sudo apachectl -V
Server version: Apache/*2.4.9* (Debian)
Server built: Mar 29 2014 22:29:22
Server's Module Magic Number: 20120211:31
Server loaded: APR 1.5.1, APR-UTIL 1.5.3
Compiled using: APR 1.5.1-dev, APR-UTIL 1.5.3
Architecture: 64-bit
Server MPM: prefork
threaded: no
forked: yes (variable process count)
Server compiled with....
-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=256
-D HTTPD_ROOT="/etc/apache2"
-D SUEXEC_BIN="/usr/lib/apache2/suexec"
-D DEFAULT_PIDLOG="/var/run/apache2.pid"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_ERRORLOG="logs/error_log"
-D AP_TYPES_CONFIG_FILE="mime.types"
-D SERVER_CONFIG_FILE="apache2.
conf"
- Apache configure related mod_wsgi:
app@application:~$ sudo cat /etc/apache2/sites-available/ussd-pull.conf
<VirtualHost *:8080>
# ---- Configure VirtualHost Defaults ----
ServerAdmin [email protected] <[email protected]>
DocumentRoot /home/app/public_html/http
<Directory />
Options FollowSymLinks
AllowOverride None
Require all granted
</Directory>
<Directory /home/app/public_html/http/>
Options Indexes FollowSymLinks MultiViews
AllowOverride None
Require all granted
</Directory>
# ---- Configure WSGI Listener(s) ----
WSGIDaemonProcess ussd_pull user=www-data group=www-data threads=200
WSGIScriptAlias /ussd /home/app/public_html/wsgi/ussd_pull.wsgi
<Directory /home/app/public_html/wsgi>
WSGIProcessGroup ussd_pull
WSGIApplicationGroup %{GLOBAL}
Require all granted
</Directory>
# ---- Configure Logging ----
ErrorLog /home/app/public_html/logs/error.log
LogLevel warn
CustomLog /home/app/public_html/logs/access.log combined
</VirtualHost>
- wsgi file:
app@application:~$ sudo cat ~/public_html/wsgi/ussd_pull.wsgi
import sys
sys.path.insert(0,'/home/app/public_html/apps/ussd_pull')
from ussd_pull import app as application
- Python version:
app@application:~$ python
Python 2.7.6 (default, Mar 22 2014, 15:40:47)
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>
So shame that i dont know where MPM parameters are of Apache 2.4 so it
should default like 2.2 version:
<IfModule mpm_prefork_module>
StartServers 5
MinSpareServers 5
MaxSpareServers 10
MaxClients 150
MaxRequestsPerChild 0
</IfModule>
and i've not installed the packet apache2-dev yet as your suggestions.
Many thanks.
Tuan.
On Mon, Jun 2, 2014 at 5:27 PM, Graham Dumpleton <[email protected]
> wrote:
>
> On 02/06/2014, at 8:18 PM, Ice Prince <[email protected]> wrote:
>
> > Hi list,
> > Believe you are doing well.
> > I'm configuring a web application which using Apache + mod_wsgi + Flask
> and i have performance issue now.
> > My application is very tiny, it just responds some short text only.
> > My apache MPM is prefork as default, wsgi is configured to run in daemon
> mode.
> > Tested by ab -n 10000 -c 200 http:/test/test i got a very good result
> as Request per second: 1500#/sec, time per request just 0.6ms.
> > But i make an actual testing which from test server, i fetch the url
> http:/test/test with speed is 100 request/second only, my web service
> become laggy, the response time reach to 3 seconds as my manual monitoring.
> > After calculation i found the actual requests i can handle only 40
> requests/second.
> > I don't know how to do next, please give some some light. Many thanks.
>
> I would really need to see the Apache configuration related to mod_wsgi as
> well as the Apache prefork MPM settings you have configured.
>
> So start by giving what you think covers that and I will ask for more if
> you haven't supplied everything.
>
> Also confirm what version of mod_wsgi, Apache and Python you are using.
>
> Graham
>
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