I had a similar issue and I believe the solution was to put the IP:port combination in the exclude file instead of using hostnames.
From: Mapred Learn [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 01, 2013 6:24 PM
To: [EMAIL PROTECTED]; Airtel
Subject: Re: Decommission a data node
Adding hdfs users.
On Aug 1, 2013, at 6:03 PM, Mapred Learn <[EMAIL PROTECTED]> wrote:
> I added node to exclude list in hdfs site n ran dfsadmin -refreshNodes
> But name node is not able to start decommissioning.
> Do I need to bounce name node ?
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