Query application configurations using ListApplicationConfigs - E-MapReduce

Queries the configurations of the application.

Operation description

Queries application configurations.

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Test

RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

emr:ListApplicationConfigs

list

*All Resource

*

None

Request parameters

Parameter	Type	Required	Description	Example
RegionId	string	Yes	The region ID.	cn-hangzhou
ClusterId	string	Yes	The cluster ID.	c-e6a9d46e9267****
NextToken	string	No	The page number of the next page returned.	1
MaxResults	integer	No	The number of entries per page.	100
ApplicationName	string	No	The name of the application.	HDFS
NodeGroupId	string	No	The ID of the node group.	ng-d555335ced5c****
ConfigFileName	string	No	The name of the configuration file.	hdfs-site.xml
ConfigItemKey	string	No	The key of the configuration item.	dfs.replication
ConfigItemValue	string	No	The value of the configuration item.	2
NodeId	string	No	The node ID.	i-bp10h9rezawz1i4o****

Response elements

Element	Type	Description	Example
	object	The response parameters.
ApplicationConfigs	array<object>	The application configurations.
	object
ApplicationName	string	The name of the application.	HDFS
ConfigFileName	string	The name of the configuration file.	hdfs-site.xml
ConfigItemKey	string	The key of the configuration item.	dfs.replication
ConfigItemValue	string	The value of the configuration item.	2
CreateTime	integer	The creation time.	1628589439114
UpdateTime	integer	The update time.	1628589439114
Modifier	string	The person who modified the configurations.	170906468757****
Custom	boolean	Indicates whether the configurations are custom.	false
InitValue	string	The initial value.	2
Description	string	The description.	dfs.replication description
ConfigEffectState	string	The status of the configuration value.	EFFECT
NodeId	string	The node ID.	i-bp18y0ng3qqxog4mw****
NodeGroupId	string	The node group ID.	ng-d555335ced5****
RequestId	string	The request ID.	9E3A7161-EB7B-172B-8D18-FFB06BA3****
NextToken	string	The page number of the next page returned.	1
MaxResults	integer	The number of entries per page.	100
TotalCount	integer	The total number of pages returned.	100

Examples

Success response

JSON format

{
  "ApplicationConfigs": [
    {
      "ApplicationName": "HDFS",
      "ConfigFileName": "hdfs-site.xml",
      "ConfigItemKey": "dfs.replication\n",
      "ConfigItemValue": "2",
      "CreateTime": 1628589439114,
      "UpdateTime": 1628589439114,
      "Modifier": "170906468757****",
      "Custom": false,
      "InitValue": "2",
      "Description": "dfs.replication description",
      "ConfigEffectState": "EFFECT",
      "NodeId": "i-bp18y0ng3qqxog4mw****",
      "NodeGroupId": "ng-d555335ced5****"
    }
  ],
  "RequestId": "9E3A7161-EB7B-172B-8D18-FFB06BA3****",
  "NextToken": "1",
  "MaxResults": 100,
  "TotalCount": 100
}

Error codes

HTTP status code	Error code	Error message
400	InvokeEcmError	An error occurred while invoking ECM service.
400	NotFound.Cluster	The cluster is not found.
400	InvalidParameter.Application	The specified application is invalid.
400	ConflictParameters	Parameters that must not be used together. %s
400	IncompleteSignature	The request signature is invalid.
400	InvalidAction	The action %s requested is invalid.
400	InvalidParameter	The specified parameter %s is not valid.
400	InvalidParameterValue	The input parameter %s is invalid or out of range.
400	MissingAction	The action %s requested is missing.
400	MissingParameter	The input parameter %s that is mandatory for processing this request is not supplied.
400	NotAuthorized	You do not have permission to perform this action. %s
400	ThrottlingException	The request was denied due to request throttling. %s
500	InternalError	The request processing has failed due to some unknown error, exception or failure.
404	ResourceNotFound	The resource not found by %s.
503	ServiceFailure	The request has failed due to a temporary failure of %s service.
503	ServiceUnavailable	The request has failed due to a temporary failure of the server.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.