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E-MapReduce:CreateSessionCluster

Last Updated:Mar 10, 2025

Creates a session.

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:
    • For mandatory resource types, indicate with a prefix of * .
    • 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-serverless-spark:CreateSessionClustercreate
*All Resources
*
    none
none

Request syntax

POST /api/v1/workspaces/{workspaceId}/sessionClusters HTTP/1.1

Request parameters

ParameterTypeRequiredDescriptionExample
bodyobjectNo

The request struct.

queueNamestringNo

The queue name.

root_queue
autoStartConfigurationobjectNo

The automatic startup configuration.

enablebooleanNo

Specifies whether to enable automatic startup is enabled.

  • true
  • false
false
autoStopConfigurationobjectNo

The automatic termination configurations.

enablebooleanNo

Specifies whether to enable automatic termination.

  • true
  • false
false
idleTimeoutMinutesintegerNo

The idle timeout period. The session is automatically terminated when the idle timeout period is exceeded.

60
applicationConfigsarray<object>No

The Spark configurations.

objectNo

The Spark configuration.

configFileNamestringNo

The name of the configuration file.

spark-defaults.conf
configItemKeystringNo

The key of SparkConf.

spark.app.name
configItemValuestringNo

The value of SparkConf.

test
releaseVersionstringNo

The version number of Spark.

esr-3.3.1
namestringNo

The name of the Spark job.

spark_job_name
kindstringNo

The session type.

  • SQL
  • NOTEBOOK
SQL
displayReleaseVersionstringNo

The version of the Spark engine.

esr-3.3.1
fusionbooleanNo

Specifies whether to enable Fusion engine for acceleration.

false
envIdstringNo

The ID of the Python environment. This parameter takes effect only for notebook sessions.

env-cpv569tlhtgndjl86t40
workspaceIdstringNo

The workspace ID.

w-790b443d72394bfc
regionIdstringNo

The region ID.

cn-hangzhou

Response parameters

ParameterTypeDescriptionExample
object

The response parameters.

sessionClusterIdstring

The session ID.

w-******
requestIdstring

The request ID.

DD6B1B2A-5837-5237-ABE4-FF0C8944****

Examples

Sample success responses

JSONformat

{
  "sessionClusterId": "w-******",
  "requestId": "DD6B1B2A-5837-5237-ABE4-FF0C8944****"
}

Error codes

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