[infinispan-dev] MapReduce on REPL and Mapper behaviour

Thomas Fromm tf at tfromm.com
Fri Aug 10 06:04:19 EDT 2012


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?

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

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.

Thanks in advance,
tf


More information about the infinispan-dev mailing list