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Posted to users@httpd.apache.org by Garret Wilson <ga...@globalmentor.com> on 2005/09/19 21:43:27 UTC

[users@httpd] Apache stops servicing port 80

I have a very strange problem that I can't resolve.

I have Apache 2.0.54 running on Red Hat. Apache is serving the following 
sites:

* http://staticpages.example.com - Simple static XHTML pages.
* http://jsp.example.com - JSP pages running via proxy on port 9000 on 
Tomcat 5.5.9 (JDK 1.5.0_04).
* http://servlet.example.com - Servlets running via proxy on port 9100 
on Tomcat 5.5.9 (JDK 1.5.0_04).
* https://dav.example.com - A WebDAV site accessed via SSL.
* https://svn.example.com - A Subversion site accessed via SSL.

Periodically the port 80 sites will stop responding. No errors will be 
in error_log. There will be no record in access_log of my attempts to 
access the site.

The other sites will still work fine. I can access the secure WebDAV 
site through Apache with no problem. I can access the JSP pages on 
Tomcat directly like this:

http://jsp.example.com:9000

But the connection will time out when trying to access either the static 
pages on Apache or the proxied Tomcat site via Apache, and no trace of 
the request can be found in the log files.

What is causing this strange problem? I'll be happy to provide more 
info, if you need it.

Sincerely,

Garret


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Re: [users@httpd] Apache stops servicing port 80

Posted by Garret Wilson <ga...@globalmentor.com>.
Here's an update---I'm even more confused.

I shut down the Tomcat server being proxied. If I then restart Apache, 
it will serve my staticpages.example.com site just fine---for a few 
minutes. Then it stops accepting requests, with nothing in the error 
logs. Nothing in the access logs. Nothing in any of the logs. It's as if 
Apache isn't there, except that my requests time out rather than being 
rejected (which would happen if Apache weren't running.) If I reboot 
Apache, it works for about five minutes and then stops responding again.

My SSL sites still work fine, but nothing going to my static pages do 
anything. What can be happening that won't even put an error in the log?

Garret

Garret Wilson wrote:

> I have a very strange problem that I can't resolve.
>
> I have Apache 2.0.54 running on Red Hat. Apache is serving the 
> following sites:
>
> * http://staticpages.example.com - Simple static XHTML pages.
> * http://jsp.example.com - JSP pages running via proxy on port 9000 on 
> Tomcat 5.5.9 (JDK 1.5.0_04).
> * http://servlet.example.com - Servlets running via proxy on port 9100 
> on Tomcat 5.5.9 (JDK 1.5.0_04).
> * https://dav.example.com - A WebDAV site accessed via SSL.
> * https://svn.example.com - A Subversion site accessed via SSL.
>
> Periodically the port 80 sites will stop responding. No errors will be 
> in error_log. There will be no record in access_log of my attempts to 
> access the site.
>
> The other sites will still work fine. I can access the secure WebDAV 
> site through Apache with no problem. I can access the JSP pages on 
> Tomcat directly like this:
>
> http://jsp.example.com:9000
>
> But the connection will time out when trying to access either the 
> static pages on Apache or the proxied Tomcat site via Apache, and no 
> trace of the request can be found in the log files.
>
> What is causing this strange problem? I'll be happy to provide more 
> info, if you need it.
>
> Sincerely,
>
> Garret
>
>
> ---------------------------------------------------------------------
> The official User-To-User support forum of the Apache HTTP Server 
> Project.
> See <URL:http://httpd.apache.org/userslist.html> for more info.
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>   "   from the digest: users-digest-unsubscribe@httpd.apache.org
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