Hello,
I'm having a problem with mod_proxy_ajp, I am receiving the following
error messages:
[Fri Mar 16 11:37:37 2007] [error] ajp_check_msg_header() got bad
signature 420
[Fri Mar 16 11:37:37 2007] [error] ajp_ilink_receive() received bad header
[Fri Mar 16 11:37:37 2007] [error] ajp_read_header: ajp_ilink_receive failed
[Fri Mar 16 11:37:37 2007] [error] (120007)APR does not understand this
error code: proxy: read response failed from url:8009 ( url)
[Fri Mar 16 13:28:45 2007] [error] (70007)The timeout specified has
expired: ajp_ilink_receive() can't receive header
[Fri Mar 16 13:28:45 2007] [error] ajp_read_header: ajp_ilink_receive
failed
[Fri Mar 16 13:28:45 2007] [error] (120006)APR does not understand this
error code: proxy: read response failed from url:8009 (url)
in my apache error log.
The following are my configuration files:
httpd.conf:
...
Timeout 300
KeepAlive On
MaxKeepAliveRequests 0
KeepAliveTimeout 15
<IfModule prefork.c>
StartServers 8
MinSpareServers 10
MaxSpareServers 25
ServerLimit 256
MaxClients 256
MaxRequestsPerChild 4000
</IfModule>
<VirtualHost url:80>
ServerAdmin [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
DocumentRoot /var/www/html
ServerName www.url.com <http://www.xxx.com/>
ServerAlias www.url.ca <http://www.xxx.ca/> www.url.biz
<http://www.xxx.biz/> url.com <http://xxx.com/> url.ca <http://xxx.ca/>
url.biz <http://xxx.biz/>
ProxyPreserveHost On
ProxyRequests Off
Redirect 301 /cgi-bin/edd.cgi
http://www.url.com/order/product.html
<http://www.xxx.com/order/product.html>
Redirect 301 /cgi-bin/menu.cgi
http://www.url.com/order/product.html
<http://www.xxx.com/order/product.html>
</VirtualHost>
In my tomcat server.xml, I have:
<!-- Define an AJP 1.3 Connector on port 8009 -->
<Connector address="url"
port="8009"
enableLookups="false"
protocol="AJP/1.3"
minSpareThreads="20"
maxSpareThreads="200"
maxThreads="1024"
connectionTimeout="600000"
/>
and my proxy_ajp.conf:
ProxyPass /order ajp://url:8009/order
ProxyPass /dwr ajp://url:8009/dwr
The error messages come up intermittently maybe 5 times a day (although
the ajp_check_msg_header() is a new one). I believe what happens is the
user gets to the secure checkout page, hits the order button and then
the error shows up in the log file, but what the user gets is a blank
page instead of the order confirmation page. Could this be an SSL thing?
I've been through the mailing lists and seen some advice for people who
are using the worker mpm, but nothing when using prefork.
Can anyone please, let me know what is going on (I'd like to understand
why I get the error messages) and what to do prevent the error from
coming up.
Thanks all for your consideration it is appreciated,
Chris.
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