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Elastic MapReduce

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API Category
Cluster Resource Management APIs
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User Management APIs
Data Inquiry APIs
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API Category

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Last updated: 2025-11-13 20:48:44

Cluster Resource Management APIs

API Name Feature Frequency Limit (maximum requests per second)
CreateCluster Creates EMR cluster instances (new) 20
CreateInstance Creates EMR instances (old) 20
DescribeClusterNodes Queries the information of nodes in a cluster 20
DescribeInstances Queries the information of instances in a cluster 20
DescribeInstancesList Queries the cluster list 20
InquiryPriceCreateInstance Queries price of instance creation 20
InquiryPriceRenewInstance Queries the price for renewal 20
InquiryPriceScaleOutInstance Queries price of scale-out 20
InquiryPriceUpdateInstance Queries price of scaling 20
ConvertPreToPostCluster Converts a monthly subscription cluster to a pay-as-you-go cluster 20
ScaleOutCluster Scales out cluster nodes (new) 20
ScaleOutInstance Scales out instances (old) 20
TerminateInstance Terminates EMR instances 20
TerminateTasks Scales in task nodes (old) 20
TerminateClusterNodes Terminates cluster nodes (new) 20

Cluster Services APIs

API Name Feature Frequency Limit (maximum requests per second)
DescribeGlobalConfig Queries the global configurations of YARN Resource Scheduling 20
DescribeResourceSchedule Queries YARN resource scheduling information (old) 20
ModifyGlobalConfig Modifies the global configurations of YARN Resource Scheduling 20
ModifyResourceScheduleConfig Modifies the resource configuration of YARN resource scheduling (old) 20
ModifyResourceScheduler Modifies a YARN resource scheduler (old) 20
StartStopServiceOrMonitor Starts or stops the monitor or services. 20

User Management APIs

API Name Feature Frequency Limit (maximum requests per second)
AddUsersForUserManager Adds the user list 20
DescribeUsersForUserManager Queries the user list 20
ModifyUserManagerPwd Changes user password (user management). 20
ModifyUserGroup Modifies user groups under User Management 20
CreateGroupsSTD Creates user groups in batches under User Management 20
DeleteGroupsSTD Deletes user groups in batches under User Management 20
DescribeGroupsSTD Queries a user group under User Management 20
ModifyUsersOfGroupSTD Changes the user information of user groups under User Management 20

Information Query APIs

API Name Feature Frequency Limit (maximum requests per second)
DescribeClusterFlowStatusDetail Queries the running status details of EMR cluster tasks 20
DescribeHBaseTableOverview Obtains an overview of HBase table-level monitoring data 20
DescribeInspectionTaskResult Obtains the inspection task result list 20
DescribeNodeResourceConfigFast Obtains node specifications quickly 20
DescribeNodeSpec Queries node specifications 20
DescribeServiceNodeInfos This API is used to query service process information. 20
DescribeHiveQueries Inquiries Hive query data 100
DescribeInsightList Obtains insight results 20
DescribeDAGInfo Queries DAG information 20
DescribeEmrOverviewMetrics Queries the metric data on the monitoring overview page 20
DescribeHDFSStorageInfo Queries the number of files stored in HDFS 20
DescribeKyuubiQueryInfo Queries Kyuubi query information 20
DescribeSparkApplications Obtains the Spark task list 20
DescribeSparkQueries Queries the Spark query list 20
DescribeStarRocksQueryInfo Queries StarRocks information 20
DescribeTrinoQueryInfo Queries Trino(PrestoSQL) query information 20

Scaling APIs

API Name Feature Frequency Limit (maximum requests per second)
DescribeAutoScaleGroupGlobalConf Obtains the global configuration of a scaling group 20
DescribeAutoScaleStrategies This API is used to access automatic scaling rules. 20
AddMetricScaleStrategy Adds automatic scaling rules 20
DeleteAutoScaleStrategy Deletes auto scaling rules 20
DescribeAutoScaleRecords Inquiries autoscaling records. 20
DescribeNodeDataDisks Queries data disk information of nodes 20
ModifyAutoScaleStrategy This API is used to modify automatic scaling rules. 20

Configuration APIs

API Name Feature Frequency Limit (maximum requests per second)
ModifyInspectionSettings Sets inspection task configurations 20
SetNodeResourceConfigDefault Sets default attributes of node specifications 20
DescribeServiceConfGroupInfos Describes service configuration group information 20

Other APIs

API Name Feature Frequency Limit (maximum requests per second)
AddNodeResourceConfig Adds node specifications 20
DeleteNodeResourceConfig Deletes node specifications 20
DescribeEmrApplicationStatics Queries the statistics of YARN tasks 20
DescribeYarnScheduleHistory Queries the YARN resource scheduling history (old) 20
ModifyInstanceBasic Modifies the cluster name 20
ModifyResourcesTags Forcibly modifies tags. 20
ModifyYarnDeploy Brings the configuration into effect after deployment (old) 20

Cluster Lifecycle APIs

API Name Feature Frequency Limit (maximum requests per second)
AttachDisks Mounts cloud disks 20
ModifyAutoRenewFlag Enables or disables the auto-renewal API 20
ModifyResource Resizes instances 20
ResizeDataDisks Scales out cloud data disks 20

Serverless HBase APIs

API Name Feature Frequency Limit (maximum requests per second)
DescribeSLInstance Queries Serverless HBase instance information 20
TerminateSLInstance Terminates a Serverless HBase instance 20
ModifySLInstanceBasic Modifies the Serverless HBase instance name 20
DescribeSLInstanceList Queries the Serverless HBase instance list 20
CreateSLInstance Creates a Serverless HBase instance 20
ModifySLInstance Resizes a Serverless HBase instance 20

YARN Resource Scheduling APIs

API Name Feature Frequency Limit (maximum requests per second)
DescribeResourceScheduleDiffDetail Queries change details in YARN resource scheduling 20
DeployYarnConf Brings the configuration into effect in YARN resource scheduling after deployment 20
ResetYarnConfig Resets data in YARN resource scheduling 20
DescribeYarnQueue Obtains queue information in resource scheduling 20
ModifyYarnQueueV2 Modifies queue information in YARN resource scheduling 20

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