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From Chris Huisman <chris.huis...@pizza73.com>
Subject Re: [users@httpd] Apache 2.2.3 prefork mpm mod_proxy_ajp
Date Mon, 26 Mar 2007 03:13:46 GMT
Can anyone tell me which error code would show up when an like the one 
mentioned in this thread occurs?  Would it be 502, or 504?  Or something 
different?

Thanks,

Chris.

Chris Huisman wrote:
> So has nobody else experienced the same problem?  Is this a bug?  
> Should I provide more information?  Where can I find the error codes 
> for proxy ajp?
>
> Chris.
>
> Chris Huisman wrote:
>> 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 webadmin@xxx.com <mailto:webadmin@xxx.com>
>>        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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>
>
> ---------------------------------------------------------------------
> The official User-To-User support forum of the Apache HTTP Server 
> Project.
> See <URL:http://httpd.apache.org/userslist.html> for more info.
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>


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