weblogic: moving apps from nonclustered to clustered

[Norman]

Hi,

If an appication is coded for a non-clustered Weblogic server, will it
normally run without any change on a clustered Weblogic server?


(Sorry for being off-topic, I didn't find the right newsgroup)

TIA.

 

[sdemchenko]

- Synchronization primitives work within each JVM (not across a
cluster).
- The same problem is with singletons.
- There may be a problem with scheduling (two or more nodes can
trigger the same scheduled job simultaneously).
- HTTP Sessions should contain only serializable objects.
There may be more problems. Most probably, an application written
without clustering in mind, will need some fixes to behave correctly.