What scheduler are you using? What do you mean by "start"? For the first map task to start?
-Sandy On Thu, Nov 28, 2013 at 6:07 AM, Juan Martin Pampliega <[email protected] > wrote: > Hi, > > I have a map-reduce job that was developed for MRV1 and is now being run > daily with no modifications in a hadoop 2.2 cluster with MRV2. > > For the first week at least the job worked as expected but now some days > the job takes a long time to start (like 30-50 minutes). The job starts a > large number of mappers (around 525) and it usually just took a couple of > minutes for it to start. Also, there are no other jobs running at the same > time. > > Any ideas what might be causing this? > > Thanks, > Juan. >
