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[ aws . emr ]

list-instances

Description

Provides information for all active EC2 instances and EC2 instances terminated in the last 30 days, up to a maximum of 2,000. EC2 instances in any of the following states are considered active: AWAITING_FULFILLMENT, PROVISIONING, BOOTSTRAPPING, RUNNING.

See also: AWS API Documentation

See 'aws help' for descriptions of global parameters.

list-instances is a paginated operation. Multiple API calls may be issued in order to retrieve the entire data set of results. You can disable pagination by providing the --no-paginate argument. When using --output text and the --query argument on a paginated response, the --query argument must extract data from the results of the following query expressions: Instances

Synopsis

  list-instances
--cluster-id <value>
[--instance-group-id <value>]
[--instance-group-types <value>]
[--instance-fleet-id <value>]
[--instance-fleet-type <value>]
[--instance-states <value>]
[--cli-input-json <value>]
[--starting-token <value>]
[--max-items <value>]
[--generate-cli-skeleton <value>]

Options

--cluster-id (string)

The identifier of the cluster for which to list the instances.

--instance-group-id (string)

The identifier of the instance group for which to list the instances.

--instance-group-types (list)

The type of instance group for which to list the instances.

(string)

Syntax:

"string" "string" ...

Where valid values are:
  MASTER
  CORE
  TASK

--instance-fleet-id (string)

The unique identifier of the instance fleet.

--instance-fleet-type (string)

The node type of the instance fleet. For example MASTER, CORE, or TASK.

Possible values:

  • MASTER
  • CORE
  • TASK

--instance-states (list)

A list of instance states that will filter the instances returned with this request.

(string)

Syntax:

"string" "string" ...

Where valid values are:
  AWAITING_FULFILLMENT
  PROVISIONING
  BOOTSTRAPPING
  RUNNING
  TERMINATED

--cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally.

--starting-token (string)

A token to specify where to start paginating. This is the NextToken from a previously truncated response.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--max-items (integer)

The total number of items to return in the command's output. If the total number of items available is more than the value specified, a NextToken is provided in the command's output. To resume pagination, provide the NextToken value in the starting-token argument of a subsequent command. Do not use the NextToken response element directly outside of the AWS CLI.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See 'aws help' for descriptions of global parameters.

Examples

The following command lists all of the instances in a cluster with the cluster ID j-3C6XNQ39VR9WL:

aws emr list-instances --cluster-id j-3C6XNQ39VR9WL

Output:

For a uniform instance group based cluster
  {
    "Instances": [
         {
            "Status": {
                "Timeline": {
                    "ReadyDateTime": 1433200400.03,
                    "CreationDateTime": 1433199960.152
                },
                "State": "RUNNING",
                "StateChangeReason": {}
            },
            "Ec2InstanceId": "i-f19ecfee",
            "PublicDnsName": "ec2-52-52-41-150.us-west-2.compute.amazonaws.com",
            "PrivateDnsName": "ip-172-21-11-216.us-west-2.compute.internal",
            "PublicIpAddress": "52.52.41.150",
            "Id": "ci-3NNHQUQ2TWB6Y",
            "PrivateIpAddress": "172.21.11.216"
        },
        {
            "Status": {
                "Timeline": {
                    "ReadyDateTime": 1433200400.031,
                    "CreationDateTime": 1433199949.102
                },
                "State": "RUNNING",
                "StateChangeReason": {}
            },
            "Ec2InstanceId": "i-1feee4c2",
            "PublicDnsName": "ec2-52-63-246-32.us-west-2.compute.amazonaws.com",
            "PrivateDnsName": "ip-172-31-24-130.us-west-2.compute.internal",
            "PublicIpAddress": "52.63.246.32",
            "Id": "ci-GAOCMKNKDCV7",
            "PrivateIpAddress": "172.21.11.215"
        },
        {
            "Status": {
                "Timeline": {
                    "ReadyDateTime": 1433200400.031,
                    "CreationDateTime": 1433199949.102
                },
                "State": "RUNNING",
                "StateChangeReason": {}
            },
            "Ec2InstanceId": "i-15cfeee3",
            "PublicDnsName": "ec2-52-25-246-63.us-west-2.compute.amazonaws.com",
            "PrivateDnsName": "ip-172-31-24-129.us-west-2.compute.internal",
            "PublicIpAddress": "52.25.246.63",
            "Id": "ci-2W3TDFFB47UAD",
            "PrivateIpAddress": "172.21.11.214"
        }
    ]
  }


For a fleet based cluster:
   {
      "Instances": [
          {
              "Status": {
                  "Timeline": {
                      "ReadyDateTime": 1487810810.878,
                      "CreationDateTime": 1487810588.367,
                      "EndDateTime": 1488022990.924
                  },
                  "State": "TERMINATED",
                  "StateChangeReason": {
                      "Message": "Instance was terminated."
                  }
              },
              "Ec2InstanceId": "i-xxxxx",
              "InstanceFleetId": "if-xxxxx",
              "EbsVolumes": [],
              "PublicDnsName": "ec2-xx-xxx-xxx-xxx.compute-1.amazonaws.com",
              "InstanceType": "m3.xlarge",
              "PrivateDnsName": "ip-xx-xx-xxx-xx.ec2.internal",
              "Market": "SPOT",
              "PublicIpAddress": "xx.xx.xxx.xxx",
              "Id": "ci-xxxxx",
              "PrivateIpAddress": "10.47.191.80"
          }
      ]
  }

Output

Instances -> (list)

The list of instances for the cluster and given filters.

(structure)

Represents an EC2 instance provisioned as part of cluster.

Id -> (string)

The unique identifier for the instance in Amazon EMR.

Ec2InstanceId -> (string)

The unique identifier of the instance in Amazon EC2.

PublicDnsName -> (string)

The public DNS name of the instance.

PublicIpAddress -> (string)

The public IP address of the instance.

PrivateDnsName -> (string)

The private DNS name of the instance.

PrivateIpAddress -> (string)

The private IP address of the instance.

Status -> (structure)

The current status of the instance.

State -> (string)

The current state of the instance.

StateChangeReason -> (structure)

The details of the status change reason for the instance.

Code -> (string)

The programmable code for the state change reason.

Message -> (string)

The status change reason description.

Timeline -> (structure)

The timeline of the instance status over time.

CreationDateTime -> (timestamp)

The creation date and time of the instance.

ReadyDateTime -> (timestamp)

The date and time when the instance was ready to perform tasks.

EndDateTime -> (timestamp)

The date and time when the instance was terminated.

InstanceGroupId -> (string)

The identifier of the instance group to which this instance belongs.

InstanceFleetId -> (string)

The unique identifier of the instance fleet to which an EC2 instance belongs.

Market -> (string)

The instance purchasing option. Valid values are ON_DEMAND or SPOT .

InstanceType -> (string)

The EC2 instance type, for example m3.xlarge .

EbsVolumes -> (list)

The list of EBS volumes that are attached to this instance.

(structure)

EBS block device that's attached to an EC2 instance.

Device -> (string)

The device name that is exposed to the instance, such as /dev/sdh.

VolumeId -> (string)

The volume identifier of the EBS volume.

Marker -> (string)

The pagination token that indicates the next set of results to retrieve.