FW: modJK errors

["Raman, Jay" <Ja...@knova.com>]

 

I have the following environment 

Solaris servers running Apache web server 

modJK 1.2.x

Intel servers running RedHat Linux AS 3 update 5

 

Load test directly on Tomcat has not produced any issues.

 

However with modJK we see the site humming along fine even under load
and sometimes when there is no load, the site seems to freeze with the
following mod_jk errors.

 

[Mon May 22 08:14:41 2006] [error]
ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
response message from tomcat, network problems or tomcat is down
(151.116.4.77:8009), err=-131

 [Mon May 22 08:14:41 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503): Tomcat is down or refused connection. No response has been sent
to the client (yet)

 

Any ideas on where to start debugging this issue?

 

The workers.properties file has a loadbalancer with 1 enabled worker and
3 disabled workers.

 

 

Thanks

Jay

 

Re: FW: modJK errors

[Rainer Jung <ra...@kippdata.de>]

Errno 131 means "Connection reset by peer" for Solaris.

Any IP influencing components between Apache und Tomcat? Firewalls? Is 
Tomcat stil listening on 151.116.4.77:8009 (check via netstat -an)

You could try to sniff network traffic on both sides (Apache and Tomcat) 
and check, whether connection packets go through (Solaris: snoop; Linux: 
tcpdump).

Raman, Jay wrote:
>  
> 
> I have the following environment 
> 
> Solaris servers running Apache web server 
> 
> modJK 1.2.x
> 
> Intel servers running RedHat Linux AS 3 update 5
> 
>  
> 
> Load test directly on Tomcat has not produced any issues.
> 
>  
> 
> However with modJK we see the site humming along fine even under load
> and sometimes when there is no load, the site seems to freeze with the
> following mod_jk errors.
> 
>  
> 
> [Mon May 22 08:14:41 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down
> (151.116.4.77:8009), err=-131
> 
>  [Mon May 22 08:14:41 2006] [error] ajp_get_reply::jk_ajp_common.c
> (1503): Tomcat is down or refused connection. No response has been sent
> to the client (yet)
> 
>  
> 
> Any ideas on where to start debugging this issue?
> 
>  
> 
> The workers.properties file has a loadbalancer with 1 enabled worker and
> 3 disabled workers.
> 
>  
> 
>  
> 
> Thanks
> 
> Jay
> 
>  
> 

-- 
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Bornheimer Str. 33a
53111 Bonn

Tel.: 0228/98549-0
Fax:  0228/98549-50
www.kippdata.de
=======================
kippdata informationstechnologie GmbH
Bornheimer Str. 33a
D-53111 Bonn

Tel.: +49/0228/98549-0
Fax:  +49/0228/98549-50
www.kippdata.de

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