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From Srimanth Gunturi <>
Subject Re: Configuration changes
Date Thu, 24 Apr 2014 01:15:17 GMT
Hi Anisha,
Ambari updates the config files on hosts during component start.
You might have noticed that the stale configs indicator stays till the
service/component is started.

On Wed, Apr 23, 2014 at 5:37 PM, Anisha Agarwal <>wrote:

>  Hi,
>  I had a question about how configuration changes work?
>  So, say I have HDFS and Mapreduce installed, and I want to make a config
> change from the UI.
> I stop the service, make the change, save it, and start the service.
>  At what point do the changes get propagated across the cluster? When we
> save the changes, does cluster.xml get updated and pushed to each host at
> that point, or does it happen after we issue the start command?
>  Thanks,
> Anisha

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