change config and use rmadmin

[Krisztian Horvath <kr...@sequenceiq.com>]

Hi eveyone,

I ran into an issue when I tried to change the capacity-scheduler's configuration by sending a PUT request to api/v1/clusters/mycluster
{
  "Clusters": {
    "desired_config": {
      "type": "capacity-scheduler",
      "tag": "version1407951570932",
      "properties": {..}
    }
  }
}
and the actual capacity-scheduler.xml didn’t change so yarn rmadmin -refreshQueues didn’t have affect. Is it possible to do this without restart? As far as I know Ambari determines whether restart is needed or not based on the actual and desired config. Thank you in advance.

Br,
Krisz

Re: change config and use rmadmin

[Yusaku Sako <yu...@hortonworks.com>]

Krisz,

The feature to refresh queues via REST/UI is in trunk for the upcoming
1.7.0 release.

Try:
POST on /api/v1/clusters/<cluster-name>/requests
{"RequestInfo":{"context":"Refresh YARN Capacity
Scheduler","command":"REFRESHQUEUES","parameters/forceRefreshConfigTags":"capacity-scheduler"},"Requests/resource_filters":[{"service_name":"YARN","component_name":"RESOURCEMANAGER","hosts":"rm-host.apache.org"}]}

Yusaku


On Thu, Aug 14, 2014 at 8:41 AM, Krisztian Horvath
<kr...@sequenceiq.com> wrote:
> Hi eveyone,
>
> I ran into an issue when I tried to change the capacity-scheduler's configuration by sending a PUT request to api/v1/clusters/mycluster
> {
>   "Clusters": {
>     "desired_config": {
>       "type": "capacity-scheduler",
>       "tag": "version1407951570932",
>       "properties": {..}
>     }
>   }
> }
> and the actual capacity-scheduler.xml didn’t change so yarn rmadmin -refreshQueues didn’t have affect. Is it possible to do this without restart? As far as I know Ambari determines whether restart is needed or not based on the actual and desired config. Thank you in advance.
>
> Br,
> Krisz
>

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