Any exceptions in the log on start up?  Were you upgrading something?  Are you 
sure that this one instance did not just _not_ restart and so no see the new 
code?

Chuck


On Sep 8, 2010, at 10:12 AM, David Avendasora wrote:

> Hi all,
> 
> Has anyone else ever seen this:
> 
> We have a server that is running 4 instances of one of our apps. Last night 
> we restarted one of the instances and apparently it didn't properly load 1 
> class that is part of one of our internal frameworks.
> 
> Every time a user tried a feature that used that one class, we got 
> java.lang.NoClassDefFoundError. The other instances of the same app started 
> from the same files on the hard drive were running fine.
> 
> We restarted the affected instance and that eliminated the problem.
> 
> We couldn't find any errors in any of the logs that would explain why the 
> class wouldn't have properly loaded.
> 
> It's all fine now, but this was a very strange issue.
> 
> Anyone ever run into something like that?
> 
> Dave  _______________________________________________
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-- 
Chuck Hill             Senior Consultant / VP Development

Practical WebObjects - for developers who want to increase their overall 
knowledge of WebObjects or who are trying to solve specific problems.    
http://www.global-village.net/products/practical_webobjects







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