Hi All,
It turned out to be a DNS issue as Loren pointed out. It's working fine now.
Not going for CDH3 right now as this was only a hardware move.
Thanks for your help!
On Thu, Aug 11, 2011 at 10:18 PM, Loren Siebert lo...@siebert.org wrote:
Can you run normal MR jobs, like the example Pi
Have you checked your logs? These are often the best places to start.
Look at the running job and click on the running count, the current
task, then the task logs.
Sometimes they're helpful, sometimes they're not.
http://hadoop-master:50030/jobtracker.jsp
Travis Powell /
Can you run normal MR jobs, like the example Pi calculation? Sometimes a
no-reducer problem stems from DNS issues— reducers use node names, not IP
addresses, so you need to have each machine knows how to resolve the names of
all the other machines in the cluster.
If it's a new cluster, you may
Are you using a custom scheduler?
I have seen issues with jobs having 0 mappers and 1 reducer with Fair scheduler.
From: hadoop n00b [mailto:new2h...@gmail.com]
Sent: Thursday, August 11, 2011 9:32 AM
To: user@hive.apache.org
Subject: Reducer Issue in New Setup
Hello,
We have just setup Hive on
