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From Mohit Anchlia <mohitanch...@gmail.com>
Subject mod_jk not working as expected - is there a bug??
Date Tue, 24 Feb 2009 23:00:59 GMT
Reposting:

Apache Server - 2.2
Tomcat server 6
Jboss - 4.2

We have Web Servers talking to Jboss App Servers over mod_jk. When we
do our patch or upgrade of software we do it in rolling fashion so
that there is "0" customer impact. But it looks like mod_jk load
balancer on Web server doesn't detect it as soon as Jboss App Server
goes down. Our goal is to have 0 customer impact. So my question is
what can we do to overcome this problem. Web Server sees Http Error
Code 503.

Information from log file:

[Mon Feb 23 13:39:42.146 2009] [31682:4143745888] [error]
ajp_connection_tcp_get_message::jk_ajp_common.c (966): (appfe4) can't
receive the response message from tomcat, network problems or tomcat
(10.10.81.89:8009) is down (errno=104)
[Mon Feb 23 13:39:42.147 2009] [31682:4143745888] [error]
ajp_service::jk_ajp_common.c (2097): (appfe4) Connecting to tomcat
failed. Tomcat is probably not started or is listening on the wrong
port


On Tue, Feb 24, 2009 at 1:41 PM, Rainer Jung <rainer.jung@kippdata.de> wrote:
> On 24.02.2009 19:18, Mohit Anchlia wrote:
>>
>> We have Web Servers talking to Jboss App Servers over mod_jk. When we
>> do our patch or upgrade of software we do it in rolling fashion so
>> that there is "0" customer impact. But it looks like mod_jk load
>> balancer on Web server doesn't detect it as soon as Jboss App Server
>> goes down. Our goal is to have 0 customer impact. So my question is
>> what can we do to overcome this problem. Web Server sees Http Error
>> Code 503.
>
> No configuration, no version information, no log files: not much we can help
> with.
>
> Also: your message subject is not likely to attract helping people.
>
> Sorry,
>
> Rainer
>
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