Nodes/{name}: DELETE

Delete a specific node or all nodes of a node class from the IBM Spectrum Scale™ cluster.

Availability

Available on all IBM Spectrum Scale editions.

Description

The DELETE nodes/name request deletes one or more nodes from the cluster. For more information about the fields in the data structures that are returned, see the topics mmdelnode command.

Prerequisites

Ensure the following before you run this API command:

GPFS needs to be stopped on all affected nodes.
Affected nodes cannot be used as NSD server.
CES must be disabled on all affected nodes.

Request URL

https://<IP address or host name of API server>:<port>/scalemgmt/v2/nodes/name

where

nodes/name: Specifies the name of the node or all nodes in a node class to be deleted. Required.

Request headers

Content-Type: application/json
Accept: application/json

Request parameters

The following parameters can be used in the request URL to customize the request:

Table 1. List of request parameters
Parameter name	Description and applicable keywords	Required/optional
name	Name of the node or node class. If node class name is specified, all nodes of the node class will be deleted.	Required.

Request data

  { 
          "name": "Name", 
}

For more information about the fields in the following data structures, see the links at the end of this topic.

"name":"Name of node or node class": Specify the nodes to be deleted.

Response data

{
    "status": {
      "code":ReturnCode",
      "message":"ReturnMessage"
   },
   jobs: [
      {
         "result":"", 
           { 
             "commands":"String",
             "progress":"String,
             "exitCode":"Exit code",
             "stderr":"Error",
             "stdout":"String",
           },
         "request":" ",
           {
             "type":"{GET | POST | PUT | DELETE}",
             "url":"URL",
             "data":""",
           }
         "jobId":"ID",
         "submitted":"Time",
         "completed":Time",
         "status":"Job status",
         }   
        ],
   }

For more information about the fields in the following data structures, see the links at the end of this topic.

"status":

Return status.

"message": "ReturnMessage",: The return message.
"code": ReturnCode: The return code.

"paging": The URL to retrieve the next page. Paging is enabled when more than 1000 objects are returned by the query.

"status":

Return status.

"message": "ReturnMessage",: The return message.
"code": ReturnCode: The return code.

"jobs":

An array of elements that describe jobs. Each element describes one job.

"result"

"commands":"String': Array of commands that are run in this job.
"progress":"String': Progress information for the request.
"exitCode":"Exit code": Exit code of command. Zero is success, nonzero denotes failure.
"stderr":"Error": CLI messages from stderr.
"stdout":"String": CLI messages from stdout.

"request"

"type":"{GET | POST | PUT | DELETE}": HTTP request type.
"url":"URL": The URL through which the job is submitted.
"data":" ": Optional.

"jobId":"ID",: The unique ID of the job.
"submitted":"Time": The time at which the job was submitted.
"completed":Time": The time at which the job was completed.
"status":"RUNNING | COMPLETED | FAILED": Status of the job.

Examples

The following API command deletes the node node1 from the cluster. .

Request URL:

curl -k -u admin:admin001 -X DELETE --header 'accept:application/json'
'https://198.51.100.1:443/scalemgmt/v2/nodes/node1'

The request URL with no field or filter parameter returns only the details that uniquely identify the object.

Response data:

Note: In the JSON data that is returned, the return code indicates whether the command is successful. The response code 200 indicates that the command successfully retrieved the information. Error code 400 represents an invalid request and 500 represents internal server error.

{
  "status": {
    "code": "200",
    "message": "..."
  },
  "job": [
    {
      "result": {
        "commands": "[''mmcrfileset gpfs0 restfs1001'', ...]",
        "progress": "[''(2/3) Linking fileset'']",
        "exitCode": "0",
        "stderr": "[''EFSSG0740C There are not enough resources available to create 
                   a new independent file set.'',  ...]",
        "stdout": "[''EFSSG4172I The file set {0} must be independent.'', ...]"
      },
      "request": {
        "type": "DELETE",
        "url": "/scalemgmt/v2/nodes/node1",
        "data":  "nodesDesc": "[ 'mari-16:manager-quorum', 'mari-17::mari-17_admin' ]"
      },
      "jobId": "12345",
      "submitted": "2016-11-14 10.35.56",
      "completed": "2016-11-14 10.35.56",
      "status": "COMPLETED"
    }
  ]
}