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From Chris Mildebrandt <>
Subject Re: Overriding values in component configuration using the Ambari UI
Date Tue, 18 Feb 2014 18:09:18 GMT
Hi Sid,

I'm actually setting the desired config. Here's an example of the REST call:

curl -i -H 'X-Requested-By: xxx' -X PUT -d '{"Clusters": {"desired_config":
{"tag": "custom1", "type": "yarn-site", "properties":
{"yarn.scheduler.minimum-allocation-mb" : "7168"}}}}' --user admin:admin

Now, of course, I'd have all my YARN variables in here not just one. This
is just an example to focus on the technique I'm using to change the
property. This is the property I'm interested in changing. After running
the above command, I then restart the required components to re-read the

Am I doing this incorrectly? Thanks,

On Tue, Feb 18, 2014 at 9:38 AM, Siddharth Wagle <>wrote:

> Hi Chris,
> Are you using Config groups to overrides configs as per the latest API
> docs ?
> It is possible to do this using the Web UI too, using the Manage Config
> Groups link on the Config page.
> Could you please provide the name of the Service and property that you are
> trying to override ?
> Best Regards,
> Sid
> On Tue, Feb 18, 2014 at 9:17 AM, Chris Mildebrandt <>wrote:
>> Hello,
>> I've searched quite a bit, maybe I'm just not using the correct terms.
>> I'm trying to override certain configuration values for YARN using the
>> Ambari UI. Can someone please give a step-by-step method to do this? When I
>> try to update the values, the save button stays disabled. I can get around
>> this by using the REST APIs for now...but it would be nice to do this in
>> the UI for quick changes.
>> I'm using HDP 2.0.6 with Ambari
>> Thanks,
>> -Chris
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