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Username admin/root Username for logging in to the cluster management page and the ECS node. Password - User password for logging in to the cluster management page and the ECS node. Confirm Password - Enter the user password again.
The NTP service has been installed on the ECS OS and is running properly. If the NTP service is not installed, run the yum install ntp -y command to install it when the yum source is configured. The ECS must allow users to log in to it using a password (SSH).
Check whether the agency is correct. 400 MRS.0212 Updating ECS agency task is running. Updating the ECS agency... Initiate the call again or contact technical support. 400 MRS.0216 Failed to update ECS metadata. Failed to update ECS metadata.
Elastic Cloud Server (ECS) provides VMs that are easily scalable. It works with VPCs, security groups, and the EVS multi-replica mechanism to build an efficient, reliable, and secure computing environment.
MRS.201 Failed due to an ECS error. Try again later or contact customer service. MRS.202 Failed due to an IAM error. Try again later or contact customer service. MRS.203 Failed due to a VPC error. Try again later or contact customer service. MRS.400 MRS system error.
Log in to the ECS and go to the NodeManager node as user root. Perform the following operations: Create a target directory.
If no subnet is created under the VPC, click Create Subnet to create one. xxx Security Group A security group is a set of ECS access rules. It provides access policies for ECSs that have the same security protection requirements and are mutually trusted in a VPC.
Prerequisites The ECS corresponding to the server must be in the same VPC as the MRS cluster's Master node, and the Master node must be able to access the server's IP address and specified port.
Data Reliability MRS can use the anti-affinity node groups provided by ECS and the rack awareness capability of Hadoop to redundantly distribute data to multiple physical host machines, preventing data loss caused by physical hardware failures. Parent topic: Functions
Set Agency Name, select Cloud service for Agency Type, and select Elastic Cloud Server (ECS) and Bare Metal Server (BMS) for Cloud Service to authorize ECS or BMS to invoke OBS. Set Validity Period to Unlimited and click OK.
Log in to the ECS of cluster B using VNC. For details, see Logging In to a Windows ECS Using VNC. All images support Cloud-Init. The preset username for Cloud-Init is root, and the password is the one set during cluster creation.
Prerequisites The ECS corresponding to the server must be in the same VPC as the MRS cluster's Master node, and the Master node must be able to access the server's IP address and specified port.
Billing Usage Period A yearly/monthly ECS is billed for the purchased duration (UTC+8:00). A billing usage period starts from the time when your MRS cluster is started or renewed (accurate to seconds) and ends at 23:59:59 on the expiration date.
If either of the operations such as deletion, shutdown, specifications modification, restart, and OS update is performed on an ECS in a cluster, the MRS cluster works abnormally.
chown omm:wheel -R data2 Run the following command to mount the new partition: mount Disk partition Mounted directory For example, if the new partition is /dev/vdb2 and the mounted directory is /srv/BigData/data2, run the following command: mount /dev/vdb2 /srv/BigData/data2 If the ECS
chown omm:wheel -R data2 Run the following command to mount the new partition: mount Disk partition Mounted directory For example, if the new partition is /dev/vdb2 and the mounted directory is /srv/BigData/data2, run the following command: mount /dev/vdb2 /srv/BigData/data2 If the ECS
): Bind an agency of the ECS type to an MRS cluster to access OBS, preventing the AK/SK from being exposed in the configuration file. For details, see Interconnecting an MRS Cluster with OBS Using an IAM Agency. Configure the AK/SK in an MRS cluster.
Creating an ECS/BMS Agency Log in to Huawei Cloud management console and go to the Identity and Access Management console page. In the navigation pane on the left, choose Agencies. Click Create Agency in the upper right corner, set related parameters, and click Next.
Click a node name to remotely log in to the ECS using the password or key pair configured during cluster creation. For details about the parameters, see Viewing MRS Cluster Component Monitoring Metrics. Node Count Number of nodes in a node group.
Agency Select Configure next to Set Advanced Options, select Available agencies for Agency, and select the agency created in Creating an ECS/BMS Agency. For example, the following figure shows an example configuration. The configuration may vary depending on the cluster version.
