Release History

Last updated: 2020-08-03 11:36:08

    February 2020

    Update Description Document
    Hive metadatabase can be shared Hive metadata of a new cluster can be stored in an associated external Hive metadatabase, so it can be shared by multiple Hive clusters to implement data exchange between clusters Managing Hive Metadata
    Cluster operation logging is optimized New display items are added to improve the readability of operation logs -
    International edition is launched The international edition is available in the Beijing, Shanghai, Guangzhou, and Mumbai regions -

    January 2020

    Update Description Document
    EMR supports cloud disk encryption EMR allows CBS users on the allowlist to select cloud disk encryption when creating an EMR cluster Cloud Disk Encryption
    Task nodes support mounting multiple cloud disks Task nodes support mounting cloud disks when a cluster is created or scaled -
    The Nanjing region is supported EMR is now available in the Nanjing region -

    December 2019

    Update Description Document
    Configuration distribution is supported If the configuration of a node is different from that in the current configuration group, the configuration in the configuration group can be distributed to the node -
    CAM resource-level authorization is supported CAM authorization at the resource level is supported -
    Association with CHDFS is supported Association with CHDFS and read/write of data on CHDFS are supported Mounting CHDFS
    An AMD model is available AMD Standard SA2 is available in the Beijing, Shanghai, and Guangzhou regions Standard SA2
    Cluster monitoring overview page is launched The cluster monitoring overview page is added with cluster, server, and service status views Cluster Overview
    Metric display granularity can be selected as needed on the service monitoring page The service monitoring page is optimized where metric display granularity can be selected as needed -
    Server service deployment and load status views are added to the server monitoring page The server monitoring page is optimized where server service deployment and load status views are added -

    November 2019

    Update Description Document
    The node specification management feature is launched Node specification management is supported. Default specifications can be set for different types of nodes based on the billing mode. The default billing mode is pay-as-you-go Node Specification Management
    Configuration management supports ZooKeeper, Alluxio, and Flink Zookeeper, Alluxio, and Flink are supported in configuration management -
    The cluster and node tagging feature is launched Tags can be set for clusters and nodes Tags
    New models are available in the Beijing, Shanghai, and Guangzhou regions S5, M5, C3, and CN3 models are available in the Beijing, Shanghai, and Guangzhou regions -

    October 2019

    Update Description Document
    EMR 3.0.0 is released EMR 3.0.0 is released with updated versions of main components Component Version

    September 2019

    Update Description Document
    TencentCloud API fully supports v3.0 TencentCloud API fully supports v3.0. Output/input parameters of certain existing v3.0 APIs are standardized, and v2.0 APIs are fully supported in v3.0 -
    Console configuration is modified The escape feature for special characters is disused -
    Cloud Monitor alarm policy is supported Alarm policies can be configured for key monitoring metrics for servers and services support in Cloud Monitor (in the Elastic MapReduce product category) -

    August 2019

    Update Description Document
    The software configuration feature is launched The software configuration feature is launched, which supports creating a cluster by entering custom parameters. The external cluster access feature is provided as well Software Configuration
    Remote login ports for new clusters can be customized The remote login port can be enabled/disabled when a new cluster is purchased -
    New cluster supports mounting multiple cloud disks Multiple cloud disks can be mounted to a new cluster -
    The feature of scaling specified components is launched Specified components can be scaled -
    New component monitoring metrics are added New monitoring metrics for Spark, Hive, Presto, and ZooKeeper are added -

    July 2019

    Update Description Document
    The HBase table-level monitoring feature is launched HBase table-level monitoring is supported, covering the number of read/write requests and storage of each table in HBase HBase Table-Level Monitoring
    EMR is available in new regions The Singapore, Mumbai, and Chengdu regions are supported -
    New models are available Standard S4 and Standard Network-Optimized SN3ne models are available in the Beijing, Shanghai, and Guangzhou regions -
    Monitoring page interactions are optimized and new monitoring metrics are added Monitoring page interactions are optimized and new monitoring metrics are added -
    WebUI proxy address is optimized The WebUI proxy address is optimized -

    June 2019

    Update Description Document
    The feature of accessing external cluster is launched Access to external clusters is supported -
    The bootstrap action setting feature is launched Bootstrap actions can be set during cluster configuration Setting Bootstrap Actions
    The feature of node-level component parameter configuration distribution is launched Component parameter configurations can be distributed to the node level -
    The parameter configuration rollback feature is launched Parameter configuration rollback is supported Parameter Configuration Rollback

    May 2019

    Update Description Document
    EMR 2.1.0 is released EMR 2.1.0 is released with updated versions of main components Component Versions
    Kerberos secure cluster is supported EMR supports the creation of secure clusters, i.e., the open-source components in the cluster are launched in Kerberos secure mode. In this security environment, only authenticated clients can access the services (such as HDFS) of the cluster Kerberos Overview
    Monitoring metrics are optimized Host, HDFS, YARN, and Hbase monitoring metrics are optimized Monitoring Metrics
    Console style is optimized The console style is optimized for an improved interactive experience -
    CVM and TencentDB naming is optimized CVM and TencentDB naming is optimized with the EMR cluster serial number for easier locating of the cluster information -
    The public IP of a master node is optional The public IP address of a master node is changed to optional -
    The number of common nodes is adjustable as needed The number of common nodes can be adjusted as needed -

    March 2019

    Update Description Document
    New models are available The I3 model is available in the Beijing, Shanghai, and Guangzhou regions. This model is a CVM allowlist model, and you can purchase it only if you are in the I3 model allowlist -
    New region is available Purchase is made available in the Silicon Valley region -
    Router node is supported Router nodes are mainly used to relieve the load of master nodes and as task submitters Node Types
    Node configuration adjustment is supported Node configurations can be upgraded Configuration Adjustment

    January 2019

    Update Description Document
    Adding new components to existing clusters is support New components can be added to existing clusters Adding Components

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