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Tomcat Not Accessible

 
Samir Parmar
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Hello
We have a deployment of Business Objects XIR3.1 running on TOMCAT 5.5.20 as web/application server. Yesterday the users lost connection to the application. I have restarted the TOMCAT service and rebooted the machine but I still cannot access the application. TomCat is running on Windows 2008 R2 VM server. I have checked the TomCat logs and there is nothing out of the ordinary. All I get is some couple of standard errors on the log file. What I have noticed is that I cannot get to the Tomcat homepage from within the server where the TomCat is installed by using http://localhost:8080
or by using http://[servername]:8080.
I do not get an error message but the request for the page keeps on going to no end. All it shows is Waiting for the [servername].
I really need help as I am under tremendous pressure to resolve the issue.

Thanks!
Samir
 
Saif Asif
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Check for any firewall based exceptions that need to be defined. Both inbound and outbound.
 
Samir Parmar
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Hi Saif

Thanks for the response.I have checked there is no firewall setup on the server. Is there anything I can look into.

Thanks!
 
Saif Asif
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One thing that is puzzling me is that you mentioned that the users lost connection to the application abruptly and even on tomcat and machine reboot , your unable to see the tomcat home page.

Did you see the logs of the exact time when the server stopped entertaining connections ?

Also double check the catalina logs and any other external logs ( if configured ) to see that the tomcat startup was normal. At the moment I am thinking that there be an exception like this



Do post back for further queries .
 
Saif Asif
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There can be multiple reasons why tomcat is not responding to connections
1) child container faliure
2) permgen out of memory ( but it should have worked on re-boot )

There has to be something in the logs that will point us in the right direction.
 
William Brogden
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Another possible reason for a running Tomcat failing to connect - all available request Threads are in use.

If this was my problem I would use the Management app to look at the status of request Threads. (Obviously this has to be done while users are still getting through. You may see an accumulation of very long running request threads.)

Bill
 
Saif Asif
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all available request Threads are in use.


Wouldn't a restart of the tomcat service solved this issue ? He even mentioned that he re-booted the machine completely , this would have solved the threading issue .
 
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