Tencent Cloud Elastic MapReduce (EMR) is a cloud-hosted Hadoop managed service provided by Tencent Cloud. It provides users with convenient Hadoop cluster deployment, software installation, configuration modification, monitoring and alerting, auto scaling, and other features, delivering a secure and stable big data processing solution for enterprises and users.
This section introduces the EMR API interfaces, all of which are API 3.0 interfaces. You can call these APIs to perform operations on Tencent Cloud EMR, such as creating a cluster, querying instances, scaling out nodes, and terminating clusters.
For all supported EMR API information, see API overview.
Common EMR API terminology is listed in the table below:
| Terminology | Description |
|---|---|
| Cluster | The basic management unit of EMR, consisting of multiple nodes, providing big data storage and computational capacity. |
| Node | An individual node in the cluster. By role, it can be divided into types such as Master, Core, and Task. |
For specific API parameter limits, refer to the parameter descriptions in each API document.
You can use the API Explorer Tool for online API calls. This document uses basic cluster creation operations as an example. The steps to make API calls through the API Explorer Tool are as follows:
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