question Re: How to enable Namenode HA using Ambari? in Support Questions

How to enable Namenode HA using Ambari?

rushikeshdeshmu — Thu, 18 Feb 2016 21:50:29 GMT

Hi,

Is there any way of enabling Namenode HA using Ambari?

Re: How to enable Namenode HA using Ambari?

nsabharwal — Thu, 18 Feb 2016 21:51:33 GMT

See this http://docs.hortonworks.com/HDPDocuments/Ambari-2.1.0.0/bk_Ambari_Users_Guide/content/_how_to_configure_namenode_high_availability.html

Amabri 2.1.0 but its not different from 2.2

Re: How to enable Namenode HA using Ambari?

nsabharwal — Thu, 18 Feb 2016 21:52:10 GMT

@Rushikesh Deshmukh

You can use this too for NN and RM + more

http://docs.hortonworks.com/HDPDocuments/Ambari-2.2.0.0/bk_Ambari_Users_Guide/content/ch_managing_service_high_availability.html

Re: How to enable Namenode HA using Ambari?

rushikeshdeshmu — Thu, 18 Feb 2016 21:53:03 GMT

@Neeraj Sabharwal, thanks for quick reply.

Re: How to enable Namenode HA using Ambari?

nsabharwal — Thu, 18 Feb 2016 21:54:53 GMT

@Rushikesh Deshmukh I see that you have some good questions.

I highly recommend to spend sometime on http://docs.hortonworks.com

Get Familiar with Doc tree

HDP docs , Ambari docs then you can see docs on other features

If you want to learn about every component then best location is http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.3.4/bk_installing_manually_book/content/ch_getting_ready_chapter.html

Ambari Admin and User guide can help you a lot to learn and it will give most of the answers there.

Re: How to enable Namenode HA using Ambari?

rushikeshdeshmu — Thu, 18 Feb 2016 21:57:04 GMT

@Neeraj Sabharwal, thanks for shairing link got required information.

Re: How to enable Namenode HA using Ambari?

rushikeshdeshmu — Sat, 20 Feb 2016 20:54:00 GMT

@Neeraj Sabharwal, thanks for sharing this link.

Re: How to enable Namenode HA using Ambari?

ray1 — Tue, 15 Nov 2016 08:16:21 GMT

So, I used the docs you listed to enable HA, however, it doesn't mention how/when to leave SafeMode. I assume its after step 16, but it really should state that in the documenation.