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move namenode to a new server

avatar
Explorer

Hei,

I need help.
I have already installed Clouera including two hosts, one works as namenode and datanode at the same time, the other one just as datanode. The cloudera has all services installed like Hdfs, hue, hbase, and so on. Now I have a new server, and I want to move the namenode to the new server, is it ok for me to do that, if yes how can I do that?
Attachment is my coudera information and two hosts information, please check and help me.
Thanks in advance.

Br,
Yibincloudera.pngcloudera host.png

1 ACCEPTED SOLUTION

avatar
Expert Contributor

If you only wish to avoid running both the NameNode and DataNode services on one host it might be easier to migrate the DataNode role. Add the new server and assign the DataNode role to it and then decomission the DataNode on the first server to avoid any data loss.

 

If you do wish to move the NameNode there are instructions on how to do so in the Cloudera documentation.

 

http://www.cloudera.com/content/cloudera/en/documentation/cloudera-manager/v5-0-0/Cloudera-Manager-M...

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2 REPLIES 2

avatar
Expert Contributor

If you only wish to avoid running both the NameNode and DataNode services on one host it might be easier to migrate the DataNode role. Add the new server and assign the DataNode role to it and then decomission the DataNode on the first server to avoid any data loss.

 

If you do wish to move the NameNode there are instructions on how to do so in the Cloudera documentation.

 

http://www.cloudera.com/content/cloudera/en/documentation/cloudera-manager/v5-0-0/Cloudera-Manager-M...

avatar
Explorer

Hei Jim,

 

Thank you so much, I wil follow this to d omy job. 🙂

 

Yibin