Sorry, I have been working in that.
I have two VirtualHosts.
<VirtualHost *:443>
SSLEngine On
SSLCompression Off
SSLProtocol +TLSv1 +SSLv3
SSLHonorCipherOrder On
SSLCipherSuite
ECDHE-RSA-AES128-SHA256:AES128-GCM-SHA256:HIGH:!MD5:!aNULL:!EDH
SSLCertificateFile /var/lib/application/.ssl/ssl-cert-application.pem
SSLCertificateKeyFile /var/lib/application/.ssl/ssl-cert-application-pk.pem
SSLCertificateChainFile
/var/lib/application/.ssl/ssl-cert-application-ca.pem
ServerName ztubuntuxlarge
ServerAlias application
ServerAdmin webmaster@ztubuntuxlarge
WSGIApplicationGroup %{GLOBAL}
WSGIDaemonProcess application display-name=%{GROUP}
WSGIProcessGroup application
WSGIScriptAlias / /usr/share/application-server/www/index.wsgi
<Directory /usr/share/application-server/www>
Order allow,deny
Allow from all
</Directory>
Alias /api/ /usr/share/doc/application-docs/html/
<Directory /usr/share/doc/application-docs/html/>
AuthUserFile /var/lib/application/.htpasswd-api
AuthName "Authorization Required"
AuthType Basic
require valid-user
Order allow,deny
Allow from all
</Directory>
ErrorLog /var/log/application/webapp.log
LogLevel info
CustomLog /var/log/application/access.log combined
</VirtualHost>
<VirtualHost *:80>
ServerName ztubuntuxlarge
ServerAlias hkp
ServerAdmin webmaster@ztubuntuxlarge
WSGIApplicationGroup %{GLOBAL}
WSGIDaemonProcess hkp display-name=%{GROUP}
WSGIProcessGroup hkp
WSGIScriptAlias / /usr/share/application-server/www/hkp.wsgi
<Directory /usr/share/application-server/www>
Order allow,deny
Allow from all
</Directory>
LogLevel info
ErrorLog /var/log/application/hkp.log
</VirtualHost>
Apache config:
KeepAlive On
KeepAliveTimeout 1200
MaxKeepAliveRequests 0
I modified my configuration in MPM
<IfModule mpm_worker_module>
ThreadLimit 8000
ServerLimit 40
StartServers 40
MaxClients 4000
MinSpareThreads 2000
MaxSpareThreads 2500
ThreadsPerChild 100
MaxRequestsPerChild 0
</IfModule>
I'm not using a common testing tool.
I have a Python script that creates 500 clients in 4 machines (2000
clients).
The server usually connects with a client, and this client can upload and
download files.
In this particular test I execute a registration (Involves a download and
upload) and after that it downloads a shared file.
I have been using up to 2000 concurrent clients right now, and everything
seems to work fine (of 2000 just 11 failed).
The actual response time is of 1 hour with all the 2000 clients.
(From the registration to the get, it takes 1 hour to finish, so each
client takes around 50 to 60 minutes)
If I'm not clear in something please let me know.
El miércoles, 19 de febrero de 2014 19:13:01 UTC-6, Graham Dumpleton
escribió:
>
> Can you please provide the rest of your mod_wsgi configuration.
>
> You do not show what you have set for WSGIDaemonProcess, nor enough about
> the structure of stuff in your VirtualHost to validate that things are set
> up correct to delegate requests to that daemon process group.
>
> For the Apache configuration, provide what you are using for KeepAlive,
> KeepAliveTimeout and KeepAliveRequests directives.
>
> Also provide information about how long your average and worst case
> response times typically are for your web application. Plus details on what
> load testing tool you are using and what options you are using with that in
> regard to concurrency, use of keep alive etc.
>
> Right now your MPM configuration settings seem to be excessively high.
>
> Graham
>
> On 20/02/2014, at 5:29 AM, Mario Adrian Lopez Aleman
> <[email protected]<javascript:>>
> wrote:
>
> Hi everyone.
>
> I'm using a big server to run my site and I'm having issues when trying to
> do some performance tests in the server.
> Here are the specs of the server:
> Ubuntu 12.04.3 x64 3.2.0-55-virtual
> 60GB RAM
> Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz (16 cores)
>
>
> *Python 2.7.3*
>
>
> *libapache2-mod-wsgi 3.3-4build1*
> *apache2 2.2.22-1ubuntu1.4*
> *apache2-mpm-worker 2.2.22-1ubuntu1.4*
>
> *Server version: Apache/2.2.22 (Ubuntu)*
> Server built: Jul 12 2013 13:37:15
> Server's Module Magic Number: 20051115:30
> Server loaded: APR 1.4.6, APR-Util 1.3.12
> Compiled using: APR 1.4.6, APR-Util 1.3.12
> Architecture: 64-bit
> Server MPM: Worker
> threaded: yes (fixed thread count)
> forked: yes (variable process count)
> Server compiled with....
> -D APACHE_MPM_DIR="server/mpm/worker"
> -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="/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
>
> <IfModule mpm_worker_module>
> ServerLimit 900
> StartServers 900
> MinSpareThreads 100
> MaxSpareThreads 500
> ThreadLimit 6000
> ThreadsPerChild 32
> MaxClients 28800
> MaxRequestsPerChild 0
> </IfModule>
>
> www-data limits
> time(seconds) unlimited
> file(blocks) unlimited
> data(kbytes) unlimited
> stack(kbytes) 8192
> coredump(blocks) 0
> memory(kbytes) unlimited
> locked memory(kbytes) 64
> process unlimited
> nofiles 65535
> vmemory(kbytes) unlimited
> locks unlimited
>
> The problem I'm seeing in my logs are these messages:
> *[Wed Feb 19 03:31:04 2014] [error] [client 192.168.6.17] (2)No such file
> or directory: mod_wsgi (pid=11996): Unable to connect to WSGI daemon
> process 'ztrustee' on '/var/run/apache2/wsgi.1342.0.1.sock' after multiple
> attempts.*
> *[Wed Feb 19 03:31:04 2014] [error] [client 192.168.6.16] Premature end of
> script headers: index.wsgi*
> *[Wed Feb 19 18:01:02 2014] [error] [client 192.168.6.8] (4)Interrupted
> system call: mod_wsgi (pid=29224): Unable to connect to WSGI daemon process
> 'ztrustee' on '/var/run/apache2/wsgi.1331.0.1.sock' after multiple
> attempts.*
>
> I already added this directive:
> *WSGIApplicationGroup %{GLOBAL}*
>
> And also checked the permission/prefix problem in:
> */var/run/apache2*
>
>
> These problems appear when doing performance tests (using 1000 ~ 1500
> clients), however the load in the server is not that much.
> MAX RAM ~5 G
> MAX CPU ~200% (MAX is 1600%)
>
> And the clients are seeing this message:
> 500 Internal Server Error
> Internal Server Error
> The server encountered an internal error or
> misconfiguration and was unable to complete
> your request.
> Please contact the server administrator,
> webmaster@ztubuntuxlarge and inform them of the time the error
> occurred,
> and anything you might have done that may have
> caused the error.
>
> More information about this error may be available
> in the server error log.
> Apache/2.2.22 (Ubuntu) Server at 192.168.6.13 Port 443
>
> Hopefully someone can point me in the right direction.
> Regards!
>
>
>
>
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