[jira] [Commented] (AMBARI-3604) Components in API should have 'category' field

["Tom Beerbower (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMBARI-3604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13807158#comment-13807158 ] 

Tom Beerbower commented on AMBARI-3604:
---------------------------------------

Exposing a new property on the component resource ...

 * ServiceComponentInfo/category

It has the following possible values 
 # MASTER
 # SLAVE
 # CLIENT

You can query for all MASTER components like this ...

{code}
  api/v1/clusters/c1/components/?ServiceComponentInfo/category=MASTER
{code}

You can query for all of the master components, and their host component jvm heap metrics like this ...

{code}
  api/v1/clusters/c1/components/?ServiceComponentInfo/category=MASTER&fields=ServiceComponentInfo,host_components,host_components/HostRoles,host_components/metrics/jvm/memHeapUsedM
{code}

> Components in API should have 'category' field
> ----------------------------------------------
>
>                 Key: AMBARI-3604
>                 URL: https://issues.apache.org/jira/browse/AMBARI-3604
>             Project: Ambari
>          Issue Type: Bug
>            Reporter: Tom Beerbower
>            Assignee: Tom Beerbower
>
> Ambari UI when loading services, loads *all* host-components to get service specific metrics, which is available only on master host-components. Loading of client/worker host-components is not needed on dashboard and services pages. 
> Hence in API we need a {{type}} field on host_components. This should indicate whether the host_component is master/worker/client/other type. Also, this field should be query-able. 
> So the below query should give me services with their master host-components, and their jvm heap metrics.
> {code}
> http://162.216.149.155:8080/api/v1/clusters/ga/services?components/host_components/HostRoles/type=master&fields=components/ServiceComponentInfo,components/host_components,components/host_components/HostRoles,components/host_components/metrics/jvm/memHeapUsedM
> {code}



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