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E-MapReduce:ListApplications

Last Updated:Dec 12, 2024

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

  • Operation: the value that you can use in the Action element to specify the operation on a resource.
  • Access level: the access level of each operation. The levels are read, write, and list.
  • Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
    • The required resource types are displayed in bold characters.
    • If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
  • Condition Key: the condition key that is defined by the cloud service.
  • Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
OperationAccess levelResource typeCondition keyAssociated operation
emr:ListApplicationslist
*All Resources
*
    none
none

Request parameters

ParameterTypeRequiredDescriptionExample
RegionIdstringYes

The region ID.

cn-hangzhou
ClusterIdstringYes

The cluster ID.

c-e6a9d46e92675****
NextTokenstringNo

The page number of the next page returned.

0
MaxResultsintegerNo

The total number of pages.

10
ApplicationNamesarrayNo

The application names.

StringstringNo

The name of a component.

HDFS

Response parameters

ParameterTypeDescriptionExample
object

The response parameters.

Applicationsarray<object>

The applications.

Applicationobject

The application.

ApplicationNamestring

The application name.

HDFS
ApplicationVersiondeprecatedstring

The version of the application.

2.8.1
CommunityVersionstring

The community edition.

2.8.5
ApplicationStatestring

The status of the applications. Valid values:

  • STOPPED: At least one application is in the Stopped state.
  • RUNNING: All applications are in the Running state.

This parameter is returned only for DataLake, OLAP, Dataflow, DataServing, and custom clusters. For other types of clusters, no value is returned for this parameter.

RUNNING
RequestIdstring

The request ID.

9E3A7161-EB7B-172B-8D18-FFB06BA3****
NextTokenstring

The page number of the next page returned.

2
MaxResultsinteger

The number of entries per page.

10
TotalCountinteger

The total number of pages.

20

Examples

Sample success responses

JSONformat

{
  "Applications": [
    {
      "ApplicationName": "HDFS",
      "ApplicationVersion": "2.8.1",
      "CommunityVersion": "2.8.5",
      "ApplicationState": "RUNNING"
    }
  ],
  "RequestId": "9E3A7161-EB7B-172B-8D18-FFB06BA3****",
  "NextToken": "2",
  "MaxResults": 10,
  "TotalCount": 20
}

Error codes

HTTP status codeError codeError message
400InvokeEcmErrorAn error occurred while invoking ECM service.
400NotFound.ClusterThe cluster is not found.
400ConflictParametersParameters that must not be used together. %s
400IncompleteSignatureThe request signature is invalid.
400InvalidActionThe action %s requested is invalid.
400InvalidParameterThe specified parameter %s is not valid.
400InvalidParameterValueThe input parameter %s is invalid or out of range.
400MissingActionThe action %s requested is missing.
400MissingParameterThe input parameter %s that is mandatory for processing this request is not supplied.
400NotAuthorizedYou do not have permission to perform this action. %s
400ThrottlingExceptionThe request was denied due to request throttling. %s
404ResourceNotFoundThe resource not found by %s.
500InternalErrorThe request processing has failed due to some unknown error, exception or failure.
503ServiceFailureThe request has failed due to a temporary failure of %s service.
503ServiceUnavailableThe request has failed due to a temporary failure of the server.

For a list of error codes, visit the Service error codes.

Change history

Change timeSummary of changesOperation
2024-08-21The Error code has changedView Change Details
2024-06-18The Error code has changedView Change Details