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HDFS, mail # user - Re: MRV2 job takes to long to start

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Re: MRV2 job takes to long to start
Sandy Ryza 2013-11-28, 17:13
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]
> 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.