Hi, Is there a way to force the number of map tasks in a MR?
I have a 25 regions table splitted over 6 nodes. But the MR is running the tasks only 2 by 2. Is there a way to force it to run one task on each regionserver serving at least one region? Why is the MR waiting for 2 taskes to complete before sending to the other tasks? I'm starting the MR with a caching of 100. I tried mapred.map.tasks and speculative=false with no success. Any idea how I can increase it this number of tasks? Thanks, JM
