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From Jason Lowe <jl...@yahoo-inc.com>
Subject Re: Configuration and final parameters
Date Thu, 11 Jul 2013 19:23:54 GMT
Given the lack of feedback, I'm guessing this is just a bug.  Filed 
HADOOP-9725.

On 07/02/2013 09:34 AM, Jason Lowe wrote:
> Someone in our group recently discovered that Configuration parameters 
> marked final can still be set().  The final designation only seems to 
> be important when loading resources and is ignored when individual 
> properties are modified.  The javadocs do call out loaded resources 
> explicitly, but there's no indication as to why final properties are 
> not checked during individual property modifications.  Bug or 
> intentional?  Will something break if it calls set() and subsequently 
> doesn't see the updated value because the final parameter silently 
> ignored the new setting?
>
> The lack of checks in the set methods appear to be an oversight, but 
> maybe I'm missing a use case?
>
> Jason
>


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