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[expand - 1 more] - Re: Datanodes using public ip, why? - HDFS - [mail # user]
...Hi Thank you all for the comments  setting dfs.datanode.dns.interface and having private ip's in slaves ans masters file didn't work. So as Alex said I changed all public ip mapping to ...
   Author: Ben Kim, 2013-07-17, 06:32
is time sync required among all nodes? - HDFS - [mail # user]
...Hi, This is very basic & fundamental question.  Is time among all nodes needs to be synced?  I've never even thought of timing in hadoop cluster but recently experienced my servers...
   Author: Ben Kim, 2013-06-05, 03:02
Hadoop 2.0.4: Unable to load native-hadoop library for your platform - HDFS - [mail # user]
...Hi I downloaded hadoop 2.0.4 and keep getting these errors from hadoop cli and MapReduce task logs  13/05/24 14:34:17 WARN util.NativeCodeLoader: Unable to load native-hadoop library fo...
   Author: Ben Kim, 2013-05-24, 05:35
[expand - 3 more] - Re: Decommissioning a datanode takes forever - HDFS - [mail # user]
...Impatient I am, I just shut down the cluster and restarted it with empty exclude file.  If I added the datanode hostname back to the exclude file, and ran hadoop dfsadmin -refreshNodes,...
   Author: Ben Kim, 2013-01-22, 14:09
[expand - 1 more] - Re: Hadoop topology not working (all servers belongs to default rack) - HDFS - [mail # user]
...Thanks a lot for your response David The problem was the rack mapping on the topology.data file. I had originally put hostname -> rack, but hadoop wouldn't take the hostname. so i changed...
   Author: Ben Kim, 2012-06-29, 00:36
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