Manage CM using Rest API

Question

Hello,

I recently discovered the CM Rest API and how I can restart services and obtain some information just using the Linux console and not using the CM UI.

I'm looking for some examples to delete and create the Impala Catalog Server and State Store (in a diferent node) by only using this feature.

I did not find any information about it in the internet, just some poor youtube videos to do simple actions.

I'm using

CDP 7.1.6

CM 7.3.1

API v43

This is the Cloudera documentation I could get from my installation

http://my-CMhost.com:7180/static/apidocs/resource_RolesResource.html

I would really appreciate if anyone used this and could share some examples 🙂

araujo · Accepted Answer

Hi @Juanes ,

Here are a couple of examples:

To delete a role:

curl \
  -u admin:admin \
  -X DELETE \
  "http://cm-host:7180/api/v45/clusters/cluster1/services/impala1/roles/impala-CATALOGSERVER-3b111e1a47149ce566f7225d1120cf85"

To create a role for a service in a particular host:

❯ cat role.json
{
  "items": [
    {
      "name" : "impala-CATALOGSERVER-myrole",
      "type" : "CATALOGSERVER",
      "serviceRef" : {
        "clusterName" : "cluster1",
        "serviceName" : "impala1",
        "serviceDisplayName" : "Impala",
        "serviceType" : "IMPALA"
      },
      "hostRef" : {
        "hostId" : "21fd5c51-0fd2-4eb6-97d2-0e498639eb07",
        "hostname" : "host-2"
      }
    }
  ]
}

❯ curl \
   -u admin:admin \
   -X POST \
   "http://cm-host:7180/api/v45/clusters/cluster1/services/impala1/roles" \
   -H 'Content-Type: application/json' \
   -d @role.json

Cheers,

André

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