I'm new to weblogic.
I've read http://download.oracle.com/docs/cd/E11035_01/wls100/cluster/overview.html and searched this topic on the internet but still had a hard time understanding some of weblogic's clustering concepts.
Can anybody confirm/correct my understandings below?
- a cluster contains one or more logical servers which can reside on one or many physical servers
- when deploying a j2ee app to a cluster, it is tied to one server in that cluster
- external users of the deployed app aren't aware of clustering
- the log file of that app is located on the server it's deployed
- if the server hosting the app fails, it's okay because the app is in a cluster and another server will pick up the work?
- if the server hosting the app fails, what happens to logging?
Maybe I got the whole concept wrong. Could anybody point me into the correct directions?
Thanks so much.