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From nuka <nuca.stratu...@gmail.com>
Subject Re: [OT] mod_jk configuration for production
Date Wed, 21 Feb 2007 13:25:33 GMT



I've read the documentation and my question is : 

- socket_timeout = 2s but reply_timeout is 0 meaning that the webserver is
waiting forever. Which of them is used for timeout ajp connection? 





Rainer Jung-3 wrote:
> 
> Then start reading on
> 
> http://tomcat.apache.org/connectors-doc/reference/workers.html
> 
> what your configuration means. You will notice, that a value of 2 for
> the socket_timeout does not really make any sense.
> 
> Regards,
> 
> Rainer
> 
> nuka schrieb:
>> This configuration was done some time ago by someone else. I  don't
>> believe
>> there is a specific reason for this parameter configuration. 
>> I believe that this should be a default dev configuration.
>> 
>> 
>> 
>> Rainer Jung-3 wrote:
>>> What's your idea why you configured a socket timeout of 2?
>>>
>>> nuka schrieb:
>>>> Hello,
>>>>
>>>> I am facing to a problem concerning apache-tomcat configuration via
>>>> mod_jk
>>>> for our production environment. We are using 	Apache: 2.0.55, Tomcat
>>>> 5.0,
>>>> mod_jk 1.2.15.
>>>>
>>>> Our first problem has been raised some weeks ago when the clients
>>>> received
>>>> http 404 errors. 
>>>>
>>>> mod_jk logs have shown errors such as:
>>>>
>>>> [Tue Feb 13 08:36:03 2007][info]  ajp_send_request::jk_ajp_common.c
>>>> (1178):
>>>> Socket 14 is not connected any more (errno=-1)
>>>> [Tue Feb 13 08:36:03 2007][info]  ajp_send_request::jk_ajp_common.c
>>>> (1202):
>>>> Error sending request. Will try another pooled connection
>>>> [Tue Feb 13 08:36:03 2007][info]  ajp_send_request::jk_ajp_common.c
>>>> (1225):
>>>> All endpoints are disconnected or dead
>>>> [Tue Feb 13 08:36:03 2007][info]  ajp_service::jk_ajp_common.c (1749):
>>>> Sending request to tomcat failed,  recoverable operation attempt=1
>>>>
>>>> After that, we changed the timeout for tomcat ajp connector (initially
>>>> =
>>>> 10000) to 60000ms.
>>>>
>>>> Now we get other errors:
>>>>
>>>> - a lot of "Error decoding request" in the JBoss logs at the same times
>>>> where  mod_jk is showing
>>>> 	
>>>> [Mon Feb 19 13:25:50 2007][info] 
>>>> ajp_connection_tcp_get_message::jk_ajp_common.c (955): Tomcat has
>>>> forced
>>>> a
>>>> connection close  for socket 14
>>>> [Mon Feb 19 13:25:50 2007][error] ajp_get_reply::jk_ajp_common.c
>>>> (1503):
>>>> Tomcat is down or refused connection. No response has been sent to the
>>>> client (yet)
>>>> [Mon Feb 19 13:25:50 2007][info]  ajp_service::jk_ajp_common.c (1721):
>>>> Receiving from tomcat failed, recoverable operation attempt=0
>>>>
>>>> Bellow is our configuration:
>>>>
>>>>  <!-- A AJP 1.3 Connector on port 8009 -->
>>>>       <Connector port="8009" address="${jboss.bind.address}"
>>>>          enableLookups="false" redirectPort="8443" debug="0"
>>>>          protocol="AJP/1.3" connectionTimeout="60000"/>
>>>>
>>>> workers.properties:
>>>>
>>>> # Define list of workers that will be used           
>>>> # for mapping requests                               
>>>> worker.list=loadbalancer, loadbalancer2, status
>>>>                    
>>>>                                        
>>>> worker.xxxNode1.port=8109                               
>>>> worker.xxxNode1.host=xxxx
>>>> worker.xxxNode1.type=ajp13 
>>>> worker.xxxNode1.socket_keepalive=True
>>>> worker.xxxNode1.socket_timeout=2
>>>> worker.xxxNode1.recycle_timeout=300
>>>> worker.xxxNode1.recovery_options=0
>>>>
>>>> worker.xxxNode2.port=8209                               
>>>> worker.xxxNode2.host=xxx.xx.xx.xx
>>>> worker.xxxNode2.type=ajp13  
>>>> worker.xxxNode2.socket_keepalive=True
>>>> worker.xxxNode2.socket_timeout=2
>>>> worker.xxxNode2.recycle_timeout=300
>>>> worker.xxx2.recovery_options=0
>>>>
>>>> Do you have any idea which parameters do we need to change in this
>>>> configuration?
>>>>
>>>> thanks
>>>>
>>>> rgds
>>>>
>>>> Nuka
>>>>   
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>>>
>> 
> 
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> 
> 

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