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From Juan Martin Pampliega <jpampli...@gmail.com>
Subject MRV2 job takes to long to start
Date Thu, 28 Nov 2013 14:07:11 GMT

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?


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