Re: mod_jk - answers from appsrv often changes 'content-type' from text/xml to text/plain

> Dear all,
>
> We have a strange problem with mod_jk on my linux box (centos45 -
> 64bit).
> We use mod_jk 1.2.25 with apache 2.0.52 (default config) and on my
> clients I got an error msg like this:
>
>> System.InvalidOperationException:
>> Client found response content type of 'text/plain; charset=UTF-8', but
>
>> expected 'text/xml'
>
> Our configuration is like this (all systems running Centos45 x86_64):
> Webserver with mod_jk -> Appserver with jboss 4.2 -> DB server
>
>
> Our clients are posting data to a soap service (axis) running on jboss
> and expect an answer in text/xml like this:
>
> ####
> Response: [
> HTTP/1.1 200 OK
> Date: Tue, 30 Oct 2007 10:54:59 GMT
> Server:  Apache/2.0.52 (CentOS)
> X-Powered-By: Servlet 2.4; JBoss-4.2.0.CR1 (build:
> SVNTag=JBoss_4_2_0_CR1 date=200703051212)/Tomcat-5.5
> Connection: close
> Content-Type: text/xml;charset=UTF-8
>
> <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
> xmlns:xsd="http://www.w3.org/2001/XMLSchema"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><soap:Body
> /></soap:Envelope> ] ####
>
> but we very often got back this (sometimes the first 3 times the answer
> is text/xml and ok but then switches to text/plain ... so it switches
> always and the only workaround with this config is to restart the
> webserver and do it again)
>
> ####
> Response: [
> HTTP/1.1 200 OK
> Date: Tue, 30 Oct 2007 16:44:55 GMT
> Server: Apache/2.0.52 (CentOS)
> Vary: Accept-Encoding,User-Agent
> Connection: close
> Content-Type: text/plain; charset=UTF-8
>
> <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
> xmlns:xsd="http://www.w3.org/2001/XMLSchema"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><soap:Body
> /></soap:Envelope> ] #####
>
> We tried also to test it on a windows box (and mod_jk 1.2.22) with the
> same results:
>
> #####
> Response: [
> HTTP/1.1 200 OK
> Date: Tue, 30 Oct 2007 10:54:59 GMT
> Server: Apache/2.2.4 (Win32) mod_jk/1.2.22
> X-Powered-By: Servlet 2.4; JBoss-4.2.0.CR1 (build:
> SVNTag=JBoss_4_2_0_CR1 date=200703051212)/Tomcat-5.5
> Connection: close
> Content-Type: text/xml;charset=UTF-8
>
> <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
> xmlns:xsd="http://www.w3.org/2001/XMLSchema"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><soap:Body
> /></soap:Envelope> ] ####
>
> and switches to this response:
>
> ####
> Response: [
> HTTP/1.1 200 OK
> Date: Tue, 30 Oct 2007 10:55:32 GMT
> Server: Apache/2.2.4 (Win32) mod_jk/1.2.22
> Connection: close
> Content-Type: text/plain
>
> <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
> xmlns:xsd="http://www.w3.org/2001/XMLSchema"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><soap:Body
> /></soap:Envelope> ] ####
>
>
> Our client systems can only proper work with a response as 'content-type
> text/xml'
>
> The only solution we found to do is use mod_jk 1.2.19 - It also works
> always when we go directly to jboss-tomcat port 8080 - We found also
> this case description in the archive
> http://www.mail-archive.com/dev@.../msg20475.html .
>
>
> Do anyone have a solution to use it with mod_jk 1.2.25 ?
>
>
> Thx and greetz, david
>
>
> A sample config from mod_jk is below:
>
> mod-jk.conf
> #####
> # Jakarta Tomcat Connector #
>
> # Load mod_jk module
> # Specify the filename of the mod_jk lib
>   LoadModule jk_module modules/mod_jk.so
>  
> # Where to find workers.properties
>   JkWorkersFile conf/workers.properties
>
> # Where to put jk logs
>   JkLogFile logs/mod_jk.log
>  
> # Set the jk log level [debug/error/info]
>   JkLogLevel info
>  
> # Select the log format
>   JkLogStampFormat  "[%a %b %d %H:%M:%S %Y]"
>  
> # JkOptions indicates to send SSK KEY SIZE
>   JkOptions +ForwardKeySize +ForwardURICompat -ForwardDirectories
>  
> # JkRequestLogFormat
>   JkRequestLogFormat "%w %V %T"
>                
> # Mount your applications
> # JkMount /application/* loadbalancer
>  
> # You can use external file for mount points.
> # It will be checked for updates each 60 seconds.
> # The format of the file is: /url=worker # /examples/*=loadbalancer
>   JkMountFile conf/uriworkermap.properties              
>
> # Add shared memory.
> # This directive is present with 1.2.10 and # later versions of mod_jk,
> and is needed for # for load balancing to work properly
>   JkShmFile /var/cache/httpd/jk.shm
>              
> # Add jkstatus for managing runtime data
>   <Location /jkstatus/>
>        JkMount status
>           Order deny,allow
>           Deny from all
>           Allow from 127.0.0.1
>   </Location>    
>
> uriworkermap.properties
> ####
> # Simple worker configuration file
>
> # Mount the Servlet context to the ajp13 worker
> /jmx-console=node1
> /jmx-console/*=node1
> /web-console=node1
> /web-console/*=node1
>
> /MCWeb=node1
> /MCWeb/*=node1
> /MC=node1
> /MC/*=node1
>
> workers.properties
> ####
> # Define list of workers that will be used # for mapping requests
>   worker.list=node1,status
>
> # Define Node1
> # modify the host as your host IP or DNS name.
>   worker.node1.port=8009 ## used for jboss ##
>   worker.node1.host=10.16.45.12
>   worker.node1.type=ajp13
>   worker.node1.socket_timeout=10
>   worker.node1.socket_keepalive=False
>
> # Status worker for managing load balancer
>   worker.status.type=status