What scheduler are you using? What do you mean by "start"? For the first
map task to start?
On Thu, Nov 28, 2013 at 6:07 AM, Juan Martin Pampliega <[EMAIL PROTECTED]
> 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
> Any ideas what might be causing this?