Hi,
I'm running a Pylons (1.0) app via Apache 2.2.14 and mod_wsgi 2.8. My
app appears to be working well, but I'm finding some strange errors
(my LogLevel is set to info). There doesn't appear to be any problems
with running out of resources either. The error is just a little
creepy and I was hoping someone could provide some insight as to the
cause.
Here is a snippet from the Apache logs:
Connection closed to child 137 with standard shutdown (server
example.com:443)
request received for child 147 (server example.com:443)
mod_wsgi (pid=15740): Exception occurred processing WSGI script
'production.dispatch.wsgi'.
Traceback (most recent call last):
File "site-packages/paste/cascade.py", line 100, in __call__
chunk = environ['wsgi.input'].read(min(copy_len, 4096))
IOError: request data read error
(32)Broken pipe: core_output_filter: writing data to the network
Connection to child 278 established (server example.com:443)
Seeding PRNG with 656 bytes of entropy
Initial (No.1) HTTPS request received for child 278 (server
example.com:443)
(104)Connection reset by peer: SSL input filter read failed.
(32)Broken pipe: core_output_filter: writing data to the network
Connection closed to child 278 with standard shutdown (server
example.com:443)
Connection to child 149 established (server example.com:443)
Seeding PRNG with 656 bytes of entropy
Initial (No.1) HTTPS request received for child 149 (server
example.com:443)
Connection to child 276 established (server example.com:443)
Seeding PRNG with 656 bytes of entropy
Initial (No.1) HTTPS request received for child 276 (server
example.com:443)
Here are some snippets from my Apache configuration:
Timeout 90
KeepAlive On
MaxKeepAliveRequests 500
KeepAliveTimeout 15
<IfModule mpm_worker_module>
StartServers 10
MinSpareThreads 10
MaxSpareThreads 50
ThreadLimit 64
ThreadsPerChild 25
MaxClients 150
MaxRequestsPerChild 10000
</IfModule>
Here's my VHost:
<VirtualHost *:80>
ServerName example.com
RedirectMatch ^/(.*) https://example.com/$1
</VirtualHost>
<IfModule mod_ssl.c>
<VirtualHost *:443>
ServerAdmin ubu...@localhost
ServerName example.com:443
# Logfiles
ErrorLog /home/ubuntu/src/example/log/error.log
CustomLog /home/ubuntu/src/example/log/access.log combined
# SSL
SSLEngine on
SSLCertificateFile /etc/apache2/ssl/example.com.crt
SSLCertificateKeyFile /etc/apache2/ssl/example.com.key
SSLCACertificateFile /etc/apache2/ssl/example.com.intermediate.crt
Redirect permanent /application https://example.com
RewriteEngine on
RewriteRule ^(.+)/$ $1 [R=301,L]
# Setup mod_wsgi
WSGIScriptAlias / /path/to/production.dispatch.wsgi
WSGIDaemonProcess example user=www-data group=www-data home=/home/
www-data
WSGIProcessGroup example
# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
LogLevel info
<Directory /home/www-data/example>
AllowOverride none
Order deny,allow
Allow from all
</Directory>
</VirtualHost>
</IfModule>
My Apache processes:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
15740 ubuntu 20 0 486m 131m 6256 S 1 1.7 0:07.83
apache2
15870 www-data 20 0 417m 101m 2808 S 0 1.3 0:00.94 apache2
15787 www-data 20 0 480m 101m 2780 S 0 1.3 0:01.07 apache2
16116 root 20 0 196m 100m 4488 S 0 1.3 0:40.06 apache2
15739 www-data 20 0 194m 94m 544 S 0 1.2 0:00.01 apache2
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