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From Sumit Mohanty <>
Subject Re: changing conf using API > is it persisted
Date Wed, 19 Mar 2014 16:49:14 GMT
There is no automatic updates. The set call using will persist
the change. Persisting of a config means adding a new version of the config
and applying it to the cluster resource.

Where did you see it reverted?

Go to the cluster resource - e.g. and check the
applied version of the hdfs-site (see desired_configs field).
Then look at the config with the same version - e.g.
Does it have your change? If not you can look at other versions of
hdfs-site config type and use that to figure out what may have a happened.

As far as the leprechaun is concerned, it will be REST aware to do this
change. So let us know.

On Wed, Mar 19, 2014 at 9:31 AM, Mathieu Despriee <>wrote:

> Hi folks,
> I have a cluster on which I changed the dfs.namenode.http-address in
> hdfs-site using the script
> /var/lib/ambari-server/resources/scripts/ .
> Everything went fine. But after some time, I noticed this parameter value
> had been reverted to the previous value.
> Is there any automatic thing running am not aware of ?
> Is there any action to do to persist changes ?
> Is there a leprechaun on my cluster ?
> Thanks for your help
> Mathieu

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