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From Mahadev Konar <>
Subject Re: Create a new cluster on the same hardware
Date Sat, 09 Mar 2013 00:42:27 GMT
Hi Subin,
   You should stop all the services before you stop the agents. Also if you
planning to automate this, you might want to try out the management API's
(please beware that these are not stable and will only be published for
integration with 1.3.0):

curl -u admin:admin -i -X PUT -d '{"ServiceInfo": {"state": "INSTALLED"}}'

For the rpm's you can probably create a list using rpm -qa diff after and
before the install. You should be able to pre install them to speed things


On Thu, Mar 7, 2013 at 11:11 PM, Modeel, Subin <> wrote:

> Hi,
> I have used Ambari to create a hadoop cluster with all services on my 7
> node cluster. Suppose now I want to recreate the cluster.
> I have done a ambari-reset .But I believe the services are still running
> on the nodes.
> What is the safe way to make sure I have stopped all the services running
> on all nodes.
> I also want to save my time every time I create cluster on the 7 nodes.
> IS there way I can pre- install all the rpm on all the nodes. If so what
> are all the rpms I can pre install.
> Thanks
> Subin11

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