All Products
Search
Document Center

E-MapReduce:NodeAttributes

Last Updated:Oct 19, 2026

Parameter

Type

Description

Example

object

The basic property configuration of a node, including network, security group, logon, and disk encryption settings.

KeyPairName

string

The ECS SSH logon key.

emr_login

VpcId

string

The VPC ID.

vpc-bp1tgey2p0ytxmdo5****

ZoneId

string

The zone ID.

cn-beijing-h

MasterRootPassword

string

The root password of the master node. This parameter is returned as empty in API responses.

EAQ#86****

SystemDiskKMSKeyId

string

The KMS key ID.

0e478b7a-4262-4802-b8cb-00d3fb40****

SecurityGroupId

string

The security group ID. EMR supports only common security groups and does not support advanced security groups.

sg-hp3abbae8lb6lmb1****

DataDiskKMSKeyId

string

The KMS key ID for the data cloud disk.

0e478b7a-4262-4802-b8cb-00d3fb40****

RamRole

string

The RAM role bound for ECS resource access. Default value: AliyunECSInstanceForEMRRole.

AliyunECSInstanceForEMRRole

DataDiskEncrypted

boolean

Specifies whether to enable encryption for the data cloud disk. For more information, see Encrypt encrypted data cloud disk. Valid values:

  • true: Enables encryption.

  • false: Disables encryption. This is the default value.

false

SystemDiskEncrypted

boolean

Specifies whether to enable encryption for the system cloud disk. Valid values:

  • true: Enables encryption.

  • false: Disables encryption. This is the default value.

false