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From "Modeel, Subin" <>
Subject RE: Create a new cluster on the same hardware
Date Tue, 12 Mar 2013 06:08:14 GMT
Hi Mahadev,

Once I stop all the services I am able to successfully recreate the services.
Also pre installing the rpms also speed my deployment.

Can you tell me the JIRAs for the management API's
We do have few doubts on the APIs exposed.


On Sat, Mar 9, 2013 at 6:12 AM, Mahadev Konar <<>>
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


From: Modeel, Subin
Sent: Friday, March 08, 2013 12:42 PM
To: ''
Subject: Create a new cluster on the same hardware


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.


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