[infinispan-dev] Reading data differs from a WAR deployment or an EAR deployment

[Galder Zamarreño]

On Sep 1, 2011, at 2:10 PM, Sanne Grinovero wrote:

> 2011/9/1 Sanne Grinovero <sanne at infinispan.org>:
>> update
>> it might just be a trivial error: duplicate jars on the classpath,
>> make the equals fail on the key when looking up a value from the
>> container.
>> 
>> This happened to myself once already and costed us some tear and
>> blood; I'm tempted to add a check for this to log a fat warning, but
>> this would have an overhead on a very hot path: to verify when the
>> class instances are different if their names where actually equal, to
>> be checked for each key comparison in happening during a cache lookup.
>> 
>> I'm thinking to add such check only if the debug/trace level are
>> enabled; still that would check for the debug level potentially many
>> times per query execution, do I'll check the logging level statically
>> .. better than nothing.
>> 
>> WDYT ?
>> 
> Extending the idea: today we've hit this issue on this specific key
> implementation, but it's in no way specific to Lucene, it could happen
> to anybody using Infinispan, with any key type both he's own custom
> keys or our "framework keys" such as those used by Lucene or OGM.
> 
> Would it make sense to have an option which wraps all keys in the
> container to do such a check? That would be able to quickly identify
> classloading ambiguities, and being an Infinispan configuration option
> it is a bit more intuitive to deal with than changing the behaviour
> according to log levels.

-1 to wrapping keys in container, that'd generate some extra garbage.

And I don't want to have to fiddle with configuration options to enable/disable this.

I'd rather switch TRACE logging on and get the warning that might help solve the issue.

> 
> Sanne
> _______________________________________________
> infinispan-dev mailing list
> infinispan-dev at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/infinispan-dev

--
Galder Zamarreño
Sr. Software Engineer
Infinispan, JBoss Cache