Partial Request and Ambari REST API

[#1]

Hello everyone,

I am trying to get a list of alerts via REST API but I want it to be limited to only specific fields.

I am currently able to get all available information from the alerts, ie:

{
  "href" : "http://ambari_server:8080/api/v1/clusters/appslogs/alerts?Alert/state.in(WARNING,CRITICAL,UNKNOWN)&Alert/maintenance_state=OFF&fields=*",
  "items" : [
    {
      "href" : "http://ambari_server:8080/api/v1/clusters/appslogs/alerts/23",
      "Alert" : {
        "cluster_name" : "appslogs",
        "component_name" : "AMBARI_AGENT",
        "definition_id" : 50,
        "definition_name" : "ambari_agent_disk_usage",
        "host_name" : "host1.local",
        "id" : 23,
        "instance" : null,
        "label" : "Host Disk Usage",
        "latest_timestamp" : 1456931060177,
        "maintenance_state" : "OFF",
        "original_timestamp" : 1454589680156,
        "scope" : "HOST",
        "service_name" : "AMBARI",
        "state" : "WARNING",
        "text" : "Capacity Used: [71.56%, 6.0 GB], Capacity Total: [8.3 GB], path=/usr/hdp. Total free space is less than 2.0 GB"
      }

Does anybody know how to get ONLY state,host and text fields in response?

I tried the following request but it does not work:

http://ambari_server:8080/api/v1/clusters/appslogs/alerts?Alert/state.in(WARNING,CRITICAL,UNKNOWN)&A...

What am I missing?

Apache Ambari Version: 2.2.0.0

[#2 · Accepted solution]

@Sunella Zag It looks like alerts resource doesn't allow filtering of fields. Only fields=* seems to be working. Specifying any fields results in default fields.

http://ambari_server:8080/api/v1/clusters/appslogs/alerts?Alert/state.in(WARNING,CRITICAL,UNKNOWN)&A...

For services resource, I was able to specify a list of fields and get only required fields in my response.

http://ambari_server:8080/api/v1/clusters/hdp_dev/services/HDFS?fields=alerts_summary

so this seems to be a problem only with alert resource.

[#3]

@Sunella Zag Following fields are defaults and will be included in all responses

"cluster_name" , "definition_id", "definition_name" , "host_name" , "id" , "service_name" 

You can include any additional fields using

http://ambari_server:8080/api/v1/clusters/appslogs/alerts?Alert/state.in(WARNING,CRITICAL,UNKNOWN)&A...lert/state,Alert/text