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        • LakeFormation Overview - MapReduce Service

          LakeFormation Overview - MapReduce Service

          IAM users or user groups cannot be used as authorization entities. The PolicySync process does not modify the default policy of the RangerAdmin Hive module in the cluster. The default policy still takes effect.

          Help > MapReduce Service > User Guide > Managing Clusters > Managing MRS Cluster Metadata > Configuring a LakeFormation Data Connection
        • MRS 3.0.5.1 Patch Description - MapReduce Service

          MRS 3.0.5.1 Patch Description - MapReduce Service

          Big data components Resolved the failure to synchronize IAM users with ClickHouse clusters. Resolved the issue that the Flume client in the cluster cannot use an agency to access OBS.

          Help > MapReduce Service > User Guide > MRS Cluster O&M > MRS Cluster Patch Description
        • Checking the Running Status of an MRS Cluster Component - MapReduce Service

          Checking the Running Status of an MRS Cluster Component - MapReduce Service

          Prerequisites The IAM users have been synchronized in advance. You can do this by clicking Synchronize next to IAM User Sync on the Dashboard page of the cluster details. You have logged in to MRS Manager. For how to log in, see Accessing MRS FusionInsight Manager.

          Help > MapReduce Service > User Guide > Managing Clusters > Managing MRS Cluster Components
        • Error Codes - MapReduce Service

          Error Codes - MapReduce Service

          Cluster ID: xxx Perform the operation after the current operation is complete. 400 12000156 Failed to query Iam group Failed to query the IAM user group.

          Help > MapReduce Service > API Reference > Appendix
        • Configuring Secure Communication Authorization for an MRS Cluster - MapReduce Service

          Configuring Secure Communication Authorization for an MRS Cluster - MapReduce Service

          Figure 3 Disabling secure communications If you have enabled critical operation protection (see Critical Operation Protection on IAM), enter the verification code obtained using the selected verification method to avoid risks and losses caused by misoperations.

          Help > MapReduce Service > User Guide > MRS Cluster O&M > MRS Cluster Security Configuration > MRS Cluster Security Hardening
        • Restarting an MRS Cluster Component - MapReduce Service

          Restarting an MRS Cluster Component - MapReduce Service

          Prerequisites The IAM users have been synchronized in advance. You can do this by clicking Synchronize next to IAM User Sync on the Dashboard page of the cluster details. You have logged in to MRS Manager. For how to log in, see Accessing MRS FusionInsight Manager.

          Help > MapReduce Service > User Guide > Managing Clusters > Managing MRS Cluster Components
        • Storing Hive Metadata to RDS - MapReduce Service

          Storing Hive Metadata to RDS - MapReduce Service

          If IAM users are not synchronized, click the Dashboard tab on the cluster details page, click Synchronize on the right of IAM User Sync, and then restart the Hive service. Hive will create necessary database tables in the specified database after restart.

          Help > MapReduce Service > User Guide > Managing Clusters > Managing MRS Cluster Metadata
        • Manager Basic Principles - MapReduce Service

          Manager Basic Principles - MapReduce Service

          IAM Records audit logs. Each non-query operation on the Manager UI has a related audit log. PMS The performance monitoring module. It collects the performance monitoring data on each OMA and provides the query function. CEP Convergence function module.

          Help > MapReduce Service > Service Overview > Components > Manager
        • Unsubscribing from a Specified Node in a Yearly/Monthly MRS Cluster - MapReduce Service

          Unsubscribing from a Specified Node in a Yearly/Monthly MRS Cluster - MapReduce Service

          On the Dashboard page of the cluster, click Synchronize on the right of IAM User Sync. Unsubscribe from or isolate a node. Currently, only clusters of the following versions support unsubscription from specified nodes in yearly/monthly clusters.

          Help > MapReduce Service > User Guide > MRS Cluster O&M > Adjusting the Capacity of an MRS Cluster
        • Creating and Using a Kafka Cluster for Stream Processing - MapReduce Service

          Creating and Using a Kafka Cluster for Stream Processing - MapReduce Service

          Preparations You have prepared an IAM user who has the permission to create MRS clusters. For details, see Creating an MRS User.

          Help > MapReduce Service > Getting Started
        • Using Hadoop - MapReduce Service

          Using Hadoop - MapReduce Service

          The cluster must contain Hadoop components and has been bound to an IAM agency with the OBS file system operation permission.

          Help > MapReduce Service > Component Operation Guide (Normal) > Using HDFS
        • Using Hadoop from Scratch - MapReduce Service

          Using Hadoop from Scratch - MapReduce Service

          The cluster must contain Hadoop components and has been bound to an IAM agency with the OBS file system operation permission.

          Help > MapReduce Service > Component Operation Guide (LTS) > Using HDFS
        • Overview of MRS Cluster Logs - MapReduce Service

          Overview of MRS Cluster Logs - MapReduce Service

          log iam_script.log IAM control log iam_ha.log IAM HA monitoring log config.log IAM configuration log operatelog.log IAM operation log heartbeatcheck_ha.log OMS heartbeat HA monitoring log install_oms.log OMS installation log pms_ha.log HA monitoring log pms_script.log Monitoring

          Help > MapReduce Service > User Guide > MRS Cluster O&M > Viewing Logs of an MRS Cluster
        • Using Hive to Load HDFS Data and Analyze Book Scores - MapReduce Service

          Using Hive to Load HDFS Data and Analyze Book Scores - MapReduce Service

          On the Dashboard page, click Synchronize next to IAM User Sync. The synchronization takes about five minutes. Figure 2 Synchronizing IAM users Upload the data file to the HDFS.

          Help > MapReduce Service > Best Practices > Data Analytics
        • Configuring the MRS Tenant Queue - MapReduce Service

          Configuring the MRS Tenant Queue - MapReduce Service

          Prerequisites The IAM users have been synchronized in advance. You can do this by clicking Synchronize next to IAM User Sync on the Dashboard page of the cluster details. You have logged in to MRS Manager. For how to log in, see Accessing MRS FusionInsight Manager.

          Help > MapReduce Service > User Guide > Managing Clusters > Managing MRS Cluster Tenants > Configuring MRS Tenants
        • Adding and Executing a Job - MapReduce Service

          Adding and Executing a Job - MapReduce Service

          On the Dashboard tab page of the cluster details page, click Click to synchronize on the right side of IAM User Sync to synchronize IAM users. Then submit a job through this API. Constraints None Debugging You can debug this API in API Explorer.

          Help > MapReduce Service > API Reference > API V2 > Job Management APIs
        • Buying a Custom MRS Cluster - MapReduce Service

          Buying a Custom MRS Cluster - MapReduce Service

          For details, see Interconnecting an MRS Cluster with OBS Using an IAM Agency. To bind an agency to an MRS cluster, you need to create an IAM agency with required permissions in advance. By default, the system generates an MRS_ECS_DEFAULT_AGENCY agency.

          Help > MapReduce Service > User Guide > Buying MRS Clusters
        • Creating and Using a ClickHouse Cluster for Columnar Store - MapReduce Service

          Creating and Using a ClickHouse Cluster for Columnar Store - MapReduce Service

          Preparations You have prepared an IAM user who has the permission to create MRS clusters. For details, see Creating an MRS User. Step 1: Creating an MRS Cluster Go to the Buy Cluster page. Search for MapReduce Service in the service list and enter the MRS console.

          Help > MapReduce Service > Getting Started
        • Creating and Using an HBase Cluster for Offline Query - MapReduce Service

          Creating and Using an HBase Cluster for Offline Query - MapReduce Service

          Preparations You have prepared an IAM user who has the permission to create MRS clusters. For details, see Creating an MRS User.

          Help > MapReduce Service > Getting Started
        • Creating and Using a Hadoop Cluster for Offline Analysis - MapReduce Service

          Creating and Using a Hadoop Cluster for Offline Analysis - MapReduce Service

          Preparations You have prepared an IAM user who has the permission to create MRS clusters. For details, see Creating an MRS User. Step 1: Creating an MRS Cluster Go to the Buy Cluster page. Search for MapReduce Service in the service list and enter the MRS console.

          Help > MapReduce Service > Getting Started
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