Apache Troubleshooting

unexpected logouts possibly related to apache?

[Animaul]

First let me describe the setup we are using. We have 1 web server running apache and 2 app servers both running weblogic. Weblogic is pointed to our db servers. Apache is doing our load balancing.

Our users are experiencing unexpected logouts. Idle time is not the problem. And for the life of us we can't get anything useful from the users as to what they were doing before they got logged out of the application that weblogic is managing. Some users are not affected one day and then affected another day. We can have users get logged out 6 times in 10 minutes and the be fine the rest of the day. When we take one of the app servers out of the the httpd.conf the users do not experience unexpected logouts. We have been at this for months upping timout values, and connection thresholds in Weblogic. It could be the application that Weblogic is managing, but we have updated all of our software and even had experts from our software vendor in to troubleshoot our problem. We still have not had any success.

The thought has come up that maybe Apache is switching users from app1 to app2 and that is causing the log out. Is that possible and if so how do we prove it? Any ideas would be greatly appriciated.

Thanks,

Animaul

[jdMorgan]

> Apache is switching users...

I don't think it's Apache, but you should investigate how or why you allocate users to app1 or app2. They very likely need to stay on the same machine for the duration of their session, unless their session state is centrally-managed. You can't just load-share between those servers. (I assume you're saying you have two copies of the app, one on app1 and the other on app2.)

Jim

[Animaul]

Thanks for the reply Jim. You are correct in that we have two copies of the app one one app1 and one on app2. Is there a way to tell if users are being switched between the two app servers? And if so is there some setting that we set to turn off that functionality?

Animaul

[jdMorgan]

Someone in your organization would have had to configure that. I can't give anything but a general answer, in that as far as I know (I could be wrong) "load-sharing" is outside of Apache, and I don't know how this was set up for your application.

Try searching the app notes for your application software as if you are trying to figure out *how* to load-share that application between two servers; That will probably give you a good idea of where to look to find your own configuration settings.

Jim