On 10 Aug 2012, at 11:04, Thomas Fromm wrote:

Hi,

I've just started to use MapReduce so there I have some questions:

1) To avoid specific handling I'd like to have the ability to execute
MapReduceTasks also on REPL/LOCAL caches. Feature request or to
expensive to implement?
I think this would be an easy to implement feature and would be nice to have it. 

2) In case I do not have an Reduce job, I'd like to avoid provide
Reducer. Creating feature request that reducedWith(...) is optional?

As you don't need a reducer, have you considered using the DistributedExecutorService with a DistributedCallable for that?
What do you think?

One more: Will the mapper be executed on _every_ entry, regardless if
its currently in the cache or just hold in store? I can test it but
maybe you can give me quick answer on this.
AFAIK he CacheStore is not iterated during the execution, Vladimir can you please confirm. 

Thanks in advance,
tf
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