Viewing Basic Information About an MRS Cluster

Viewing Basic Information About an MRS Cluster

1. Log in to the MRS console.
2. On the Active Clusters page, select a running cluster and click its name to switch to the cluster details page.
3. On the cluster details page, click Dashboard to view the basic information of the cluster.

   Table 1 MRS cluster basic information

   Parameter	Description
   Cluster Name	The name of a cluster. Configure this parameter when creating a cluster. Click to change the cluster name. Only the cluster name displayed on the MRS management console is changed, while the cluster name on MRS Manager is not changed synchronously.
   Cluster Status	The cluster status. For details, see Table 2.
   Cluster Version	MRS version information.
   Cluster Type	There are three types of clusters: Analysis Cluster: is used for offline data analysis and provides Hadoop components. Streaming Cluster: is used for streaming tasks and provides stream processing components. Hybrid Cluster: is used for both offline data analysis and streaming processing and provides Hadoop components and streaming processing components. Custom: An MRS cluster with all custom components. MRS 3.x or later supports this type.
   Cluster ID	Unique identifier of a cluster, which is automatically assigned when a cluster is created.
   Created	Time when a cluster is created.
   AZ	Availability zone (AZ) in the region of a cluster, which is set when a cluster is created.
   Kerberos Authentication	Whether to enable Kerberos authentication when logging in to Manager.
   Enterprise Project	The enterprise project to which a cluster belongs. Only on the Active Clusters page, you can click the name of an enterprise project to go to its Enterprise Project Management page.

   Table 2 MRS cluster network information

   Parameter	Description
   Default Subnet	The subnet selected during cluster creation. If the subnet IP addresses are insufficient, click Change Subnet to switch to another subnet in the same VPC of the current cluster to obtain more available subnet IP addresses. Changing a subnet does not affect the IP addresses and subnets of existing nodes. A subnet provides dedicated network resources that are isolated from other networks, improving network security.
   VPC	VPC selected during cluster creation. A VPC is a secure, isolated, and logical network environment.
   EIP	After binding an EIP to an MRS cluster, you can use the EIP to access the Manager web UI of the cluster. If you do not need the EIP, click Unbind to unbind the EIP from the cluster. The Manager will not be accessible through the unbound EIP. NOTE: If you unbind the EIP from a cluster, other users may fail to access the Manager of that cluster.
   Security Group	The security group name of the cluster.

   Table 3 MRS cluster O&M management

   Parameter	Description
   MRS Manager	Manager entry. For details, see Accessing MRS Manager.
   IAM User Sync	IAM user information (including federated users) can be synchronized to an MRS cluster for cluster management. For details, see Synchronizing IAM Users to MRS. NOTE: The Components, Tenants, and Backups & Restorations pages on the cluster details page can be used only after users are synchronized. After an MRS 3.x cluster is synchronized, you can use the Components function. For a federated user, only information about the user that logged in the system can be synchronized.
   Data Connection	Click Manage to view the data connection type associated with the cluster. For details, see Creating a Data Connection.
   Agency	Click Manage Agency to bind or modify an agency for the cluster. An agency allows ECS or BMS to manage MRS resources. You can configure an agency of the ECS type to automatically obtain the AK/SK to access OBS. For details, see Interconnecting an MRS Cluster with OBS Using an IAM Agency. The MRS_ECS_DEFAULT_AGENCY agency has the OBSOperateAccess permission of OBS and the CESFullAccess (for users who have enabled fine-grained policies), CES Administrator, and KMS Administrator permissions in the region where the cluster is located.
   OBS Permission Control	Click Manage and modify the mapping between MRS users and OBS permissions. For details, see Configuring Fine-Grained OBS Access Permissions for MRS Cluster Users.
   Logging	Used to collect logs about cluster creation and scaling failures.
   Secure Communications	Used to display the security authorization status. You can enable or disable security authorization. Disabling security authorization brings high risks. Exercise caution when performing this operation. For details, see Configuring Secure Communication Authorization for an MRS Cluster.

   Table 4 MRS cluster billing information

   Parameter	Description
   Billing Mode	Billing mode of a cluster. Currently, Pay-per-use and Yearly/Monthly are supported.
   Last Transaction Order	Order number for purchasing a cluster. This parameter is available only when Billing Mode is set to Yearly/Monthly.
   Created	Time when the cluster is created. This parameter is available only when Billing Mode is set to Yearly/Monthly.
   Expired	Cluster expiration time. This parameter is available only when Billing Mode is set to Yearly/Monthly.
   Upon Expiration	The cluster will enter the grace period upon expiration. This parameter is available only when Billing Mode is set to Yearly/Monthly.