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From nyhgan <>
Subject Re: apache, mod_jk, tomcat hungs
Date Wed, 12 May 2004 13:50:13 GMT
Exactly. I have been on this user list for months and I still haven't seen anyone solve the
mod_jk connector issue for apache and tomcat 4.1.x or above.  Now, I switch back to use Tomcat3.3
instead because it runs more stable than tomcat4.x and 5.x
We can't wait forever like this.  Maybe some experience c++ programmers out there can take
a look at the source code for mod_jk and see if the problem can be fix.

Daniel Gibby <> wrote:All I can say is you are not alone.
Requests of our sort never seem to 
be answered, and we've been asking them for months.
Actually, by being answered I'm not saying that people don't post 
replies, I just mean that I don't know of anyone who has fixed this 
issue on their system.

It sure sounds like the same issue that I'm having with mod_jk2 2.0.2, 
apache 2.0.40, tomcat 4.1.30 or tomcat 4.1.27... but I can't be sure 
that it is the same issue. My bet is that most of the tomcat developers 
don't use connectors because they would rather keep things stable, and 
introducing apache into the mix just means one more point of failure.

Sorry I can't be of more help right now. I've tried using JMeter to 
reproduce my lockups, and that hasn't helped me yet.
Is there someone out there who would like to be paid to run a profiler 
on some of my applications? Please contact me off-list, and if you can 
solve my issue, I'll post the results to the list... I'm in contact with 
two or three people from this list that are having the same type of 
issues, and more requests for help come into the list weekly. We'd all 
be happy for the help.

Daniel Gibby

Beat De Martin wrote:

>Hello folks
>I'm using Tomcat 3.3.1, Apache 1.3.27 and mod_jk 1.2.4.
>Every two days my Tomcat hungs and I have to restart it.
>Before Tomcat hungs I can see the following in mod_jk.log:
> ERROR: can't receive the response message from tomcat, network problems or
>tomcat is down. err=-1
> [jk_ajp_common.c (1137)]: Error reading reply from tomcat. Tomcat is down
>or network problems.
> [jk_ajp_common.c (1290)]: ERROR: Receiving from tomcat failed, recoverable
>operation. err=0
> [jk_ajp_common.c (1309)]: sending request to tomcat failed in send loop.
>Any ideas ?

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