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Posted to bugs@httpd.apache.org by bu...@apache.org on 2006/03/17 06:44:31 UTC

DO NOT REPLY [Bug 39006] New: - Internal Server Error from Apache even if Tomcat is running

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           Summary: Internal Server Error from Apache even if Tomcat is
                    running
           Product: Apache httpd-2
           Version: 2.0.43
          Platform: All
        OS/Version: Windows Server 2003
            Status: NEW
          Severity: critical
          Priority: P1
         Component: All
        AssignedTo: bugs@httpd.apache.org
        ReportedBy: saurabh.kumar@siemens.com


I am using Apache - Tomcat integration for my Web Application.
Apache is running on port 8079 and is forwarding requests to tomcat through 
mod_jk-2.0.42.dll module(Tomcat port 8009,ajp13 Connector).It works fine in 
most of the cases but I get "Internal Server Error" response from Apache from 
time to time, even though Tomcat is up and running fine.
(I have tried it on both Windows2003 server and Windows200 professional)
Can someone help me on this.?

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DO NOT REPLY [Bug 39006] - Internal Server Error from Apache even if Tomcat is running

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------- Additional Comments From saurabh.kumar@siemens.com  2006-03-18 14:17 -------
Apache's accesslog has 500 error but there is no entry for that in ther 
errorlog.

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DO NOT REPLY [Bug 39006] - Internal Server Error from Apache even if Tomcat is running

Posted by bu...@apache.org.
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------- Additional Comments From trawick@apache.org  2006-03-18 14:15 -------
Did Apache write a message to the error log at the time of the 500?

If yes, post the message and we can help decipher that here.

If no, this is a mod_jk issue and should be investigated by somebody else.  We
don't support mod_jk here.

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DO NOT REPLY [Bug 39006] - Internal Server Error from Apache even if Tomcat is running

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rpluem@apache.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|All                         |Native:JK
            Product|Apache httpd-2              |Tomcat 5
            Version|2.0.43                      |5.5.4




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DO NOT REPLY [Bug 39006] - Internal Server Error from Apache even if Tomcat is running

Posted by bu...@apache.org.
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wrowe@apache.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|                            |INVALID




------- Additional Comments From wrowe@apache.org  2006-03-20 07:16 -------
You don't mention what version of mod_jk you are running, some binary
with the corresponding apache version number does us no good.

You don't mention if you have changed LogLevel from warn to debug to
provide the maxiumum information related to any failures (on the jk
module or apache side.)

You state;

  This problem occurs only when I try to submit a JSP/HTML form whose "action" 
  is in a different Web Application on the same Tomcat Server. i.e. the form is 
  in a web application named /vyom and the target is in a web 
  application /nexus2a.(both are on the same tomcat though and we specify the 
  absolute path in the action attribute)

which is a very good clue that something is misconfigured or misrouted by what
you believed was the correct configuration.  You finally state;

  with 25 concurrent users.  Out of these 25 users, around 10 of them get a 
  proper response but remaining got "Internal Server Error".

which implies you didn't create sufficient worker pools in your configuration.

Please take this out of bugzilla.  This is NOT a user support forum.  Ask your
questions on an appropriate user support list.  Not here.


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DO NOT REPLY [Bug 39006] - Internal Server Error from Apache even if Tomcat is running

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saurabh.kumar@siemens.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|INVALID                     |




------- Additional Comments From saurabh.kumar@siemens.com  2006-03-20 06:11 -------
I installed Apache 2.0.55 and mod_jk-apache-2.0.55.so.
The problem still persists.

If this problem does not relate to Apache, can someone tell where to report 
this?

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DO NOT REPLY [Bug 39006] - Internal Server Error from Apache even if Tomcat is running

Posted by bu...@apache.org.
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rpluem@apache.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO




------- Additional Comments From rpluem@apache.org  2006-03-17 11:27 -------
Some remarks:
You use a very old version of httpd. It is advisable to upgrade. As 2.0.56 might
get out of the door in the next 14 days you may want to wait until then.
What version of mod_jk are you using? Maybe it is also very old. If yes, please
try to upgrade and have a look if the problem still persists.
If the problem is still there we need some more info (log files: error log from
httpd, mod_jk log, eventually Tomcat logs (what version of Tomcat are you
using?)). After that we can hopefully see if this is really a httpd problem, a
mod_jk problem or a Tomcat problem.


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DO NOT REPLY [Bug 39006] - Internal Server Error from Apache even if Tomcat is running

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rpluem@apache.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|INVALID                     |




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DO NOT REPLY [Bug 39006] - Internal Server Error from Apache even if Tomcat is running

Posted by bu...@apache.org.
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------- Additional Comments From saurabh.kumar@siemens.com  2006-03-18 13:52 -------
One more observation.

This problem occurs only when I try to submit a JSP/HTML form whose "action" 
is in a different Web Application on the same Tomcat Server. i.e. the form is 
in a web application named /vyom and the target is in a web 
application /nexus2a.(both are on the same tomcat though and we specify the 
absolute path in the action attribute)
Also,this problem occurs only when I am doing the load testing of my 
application (using Mercury Load Runner) with 25 concurrent users.Out of these 
25 users, around 10 of them get a proper response but remaining got "Internal 
Server Error".
For normal access i.e. individual users accessing the system,it works fine 
without any error.

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DO NOT REPLY [Bug 39006] - Internal Server Error from Apache even if Tomcat is running

Posted by bu...@apache.org.
DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG�
RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT
<http://issues.apache.org/bugzilla/show_bug.cgi?id=39006>.
ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND�
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trawick@apache.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |RESOLVED
         Resolution|                            |INVALID




------- Additional Comments From trawick@apache.org  2006-03-18 14:26 -------
>Apache's accesslog has 500 error but there is no entry for that in ther 
>errorlog.

So its a mod_jk issue instead of an Apache issue.  Apache won't
return 500 without telling why.

If somebody knows how to move this PR to a mod_jk category, please do.

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DO NOT REPLY [Bug 39006] - Internal Server Error from Apache even if Tomcat is running

Posted by bu...@apache.org.
DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG�
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wrowe@apache.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|                            |INVALID




------- Additional Comments From wrowe@apache.org  2006-03-18 16:03 -------
I'm sorry; this version is *so* stale, includes so many non-ASF elements in
your brew, and includes too little diagnostic information to actually identify
a specific bug anywhere in particular.  You are essentially asking us to help
you troubleshoot code cira 2001, and it's 2006 already.

Bugzilla is not a user support forum, you might wish to ask appropriate user
support lists for additional assistance.

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DO NOT REPLY [Bug 39006] - Internal Server Error from Apache even if Tomcat is running

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------- Additional Comments From saurabh.kumar@siemens.com  2006-03-18 07:44 -------
Apache httpd Version is 2.0.43(win32)with additional 
modules "mod_auth_sspi.so"(1.0.1) and "mod_jk-2.0.42.dll". 
Tomcat version is 5.5.4
mod_jk version is 1.2.0

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