weblogic: moving apps from nonclustered to clustered

Thread view:

Norman - 04 Mar 2007 08:29 GMT

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.

Reply to this Message

sdemchenko@gmail.com - 04 Mar 2007 14:48 GMT

- 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.

Reply to this Message

Free Magazines

Get these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...