question Re: Is it impossible to move or add JournalNode by Ambari? in Support Questions

Is it impossible to move or add JournalNode by Ambari?

takefumi_ohide — Thu, 23 Jun 2016 09:37:57 GMT

A host that JournalNode is assigned went down by hardware trouble. So I want to move that JournalNode to another host. However, I can't find the way how to move or add JournalNode by Ambari. Is it impossible to move or add JournalNode by Ambari?

Re: Is it impossible to move or add JournalNode by Ambari?

takefumi_ohide — Thu, 23 Jun 2016 10:02:52 GMT

Is using Ambari REST API the only way for it? I found some articles using Ambari REST API for this problem.

https://community.hortonworks.com/articles/14612/process-for-moving-journal-nodes-from-one-host-to.html

https://gist.github.com/uprush/441861460f1d4c93b13f

http://zdatainc.com/2015/09/add-journalnode-to-ambari-managed-hadoop-cluster/

Re: Is it impossible to move or add JournalNode by Ambari?

pminovic — Thu, 23 Jun 2016 10:20:22 GMT

I recently moved a journal node from one cluster machine to another by following procedure given here:

https://community.hortonworks.com/questions/4272/process-for-moving-hdp-services-manually.html

and informing Ambari about adding the 4th JN, and then deleting the one I wanted to move. It's similar to the article you found but a little bit simpler. The Ambari API calls are given in the article you found.

Re: Is it impossible to move or add JournalNode by Ambari?

takefumi_ohide — Thu, 23 Jun 2016 12:29:19 GMT

@Predrag Minovic

Thank you very much!!! I've succeeded in adding a JournalNode.

Re: Is it impossible to move or add JournalNode by Ambari?

pminovic — Thu, 23 Jun 2016 12:53:42 GMT

If it helped you, can you please accept my answer, to help us manage Q&A and help others find solutions for their problems. Tnx!