Hi, I want to do some initial one time set up before each of my map task starts. Is there some method which is similar to org.apache.hadoop.mapreduce.Mapper -setup method, in hadoop pipes or streaming ?
Another newbie question - Does hadoop keep the map tasks alive for a given job e.g if i set max map tasks to 4 and if i call setup method , can i assume that it won't be called more than 4 times (once for each map task)? I am assuming the task runs normally (no task hangs or crashes) Thanks, Amit
