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From Sumit Mohanty <>
Subject Re: Host re-installation
Date Fri, 21 Mar 2014 17:39:37 GMT
You can use Ambari support for add/remove host.

For example, if you have not removed (using Ambari) the host already you
can do so now in the "host" page through Delete Host.

After that you can do a "Add Host" on the "hosts" and add the host back.
"Add Host" will install agent and install components based on what you

On Fri, Mar 21, 2014 at 10:32 AM, Anoop Rajendra

> Hi,
> I had to take down a host from a running cluster for maintenance. Once
> I re-installed the OS on it. I'd like to bring it back to the same
> state as the host was before reinstallation.
> I can't seem to find hooks in Ambari to bring the host back into the
> HDP cluster. How do I do this?
> I'm using Ambari and HDP
> -a

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