[Hadoop-common-dev] Fwd: How to pass global constants to mappers and reducers

Hi,
Can please tell me a way to pass global vlaues(like matrix size or block
sizes ) to mappers and reducers.Till now i am using hbase to pass values or
modifying them, i think it is takin more time for that, it will be a great
help for me, if you tell me a different approach for that.I just need to
read those values.