Check your node manager logs to understand the bottleneck first. When we had a similar issue on recent version of hadoop, which includes fix for MAPREDUCE-4068: we rearranged our job jar file to reduce time spent on 'expanding' the job jar file by the node manager(s).
-Rahul On Sun, Jan 20, 2013 at 10:34 PM, Krishna Kishore Bonagiri < write2kish...@gmail.com> wrote: > Hi, > I am seeing that from the time ApplicationMaster is sumitted by my > Client to the ASM part of RM, it is taking around 7 seconds for AM to get > started. Is there a way to reduce that time, I mean to speed it up? > > Thanks, > Kishore >