question Re: Ambari rest API to get host of particular components. in Archives of Support Questions (Read Only)

Ambari rest API to get host of particular components.

bhargavchowdare — Mon, 15 Aug 2016 04:00:51 GMT

Here i just want to get my resource manager hostip and its port.

cstanca — Mon, 15 Aug 2016 08:23:27 GMT

Get a list of services:

GET /clusters/:name/services

For any of the services listed, including ResourceManager, view service information:

GET /clusters/:clusterName/services/:serviceName

Of course, prepend the GET statements with:

curl -u admin:admin -H "X-Requested-By: ambari"-X

Please vote/accept answer, if helpful.

pzampino — Fri, 29 Sep 2017 07:13:21 GMT

You may also find the information you see in this article: Using Ambari to Automate Knox Topology Definitions.

Specifically, while the following API will get you all the host component details, including the host(s),

api/v1/clusters/clustername/services/YARN/components/RESOURCEMANAGER

it will not get you the appropriate ports.

For that, you need to interrogate the active YARN service configuration:

api/v1/clusters/clustername/configurations/service_config_versions?service_name=YARN

And look for the yarn-site configuration type, and the following properties therein:

yarn.http.policy
This will tell you if http is sufficient, or if you need to use https
yarn.resourcemanager.address
The value of this property is the HOST:PORT address you originally requested.

I hope that helps...