Manage clusters in the ApsaraDB for MyBase console-ApsaraDB for MyBase(MyBase)-阿里云帮助中心

After you create an ApsaraDB for MyBase dedicated cluster, you can view, modify, and delete it.

Background

For more information about ApsaraDB for MyBase, see What is ApsaraDB for MyBase?.

View cluster information

Log on to the ApsaraDB for MyBase console.
In the upper-left corner of the page, select a region.
On the Dedicated Clusters page, view or download cluster information.
- By default, the page displays information such as Dedicated Cluster ID, VPC, and Hosts. To customize the visible columns, click the icon and then Column Settings. In the dialog box, use the arrow buttons to move columns between the Available Columns and Visible Columns lists. The configurable columns include Dedicated Cluster ID/Name, Cluster Type, VPC, Engine, Resource Allocation Policy, and Host Troubleshooting Policy. After you complete the settings, click OK.
- To download the cluster information, click the icon on the right.
Find the desired cluster and click Details in the Actions column.

On the Dedicated Cluster Information page, view the parameters.

Parameter	Description
Dedicated Cluster ID	The dedicated cluster's ID.
Dedicated Cluster Name	The dedicated cluster's name.
Engine	The dedicated cluster's database engine.
Architecture	This parameter appears only when the Engine is set to MySQL. The default value is High availability.
VPC	The dedicated cluster's VPC.
Hosts	The number of hosts in the dedicated cluster.
Instances	The number of instances in the dedicated cluster.
Host Troubleshooting Policy	The policy for handling host failures: Automatic Host Replacement: The system automatically replaces a faulty host. Note If a faulty host uses cloud disks, its computing resources are automatically migrated to a replacement host. If the faulty host does not use cloud disks, the system first migrates the instances from the faulty host and then automatically replaces the host. Manual Host Replacement: You must manually replace a faulty host.
Open OS Permissions	Specifies whether to grant OS permissions for the hosts.
Resource Allocation Policy	The default resource scheduling policy for the cluster: Balanced Allocation: The system prioritizes stable performance and allocates resources from hosts that have no resources or fewer resources allocated. Compact Allocation: The system prioritizes high resource utilization and allocates resources from hosts that were created earlier and have more resources allocated.
CPU Overcommit Ratio	The CPU overcommit ratio of the dedicated cluster. For example, a 200% ratio allows the total allocated CPU resources to be twice the physical CPU resources, maximizing utilization.
Storage Overcommit Ratio	The storage overcommit ratio of the dedicated cluster. For example, a 200% ratio allows the total allocated storage to be twice the physical storage, maximizing utilization.
Maximum Memory Usage	The maximum memory usage of each host in the dedicated cluster.
Creation Time	The dedicated cluster's creation time.

Modify a dedicated cluster

Log on to the ApsaraDB for MyBase console.
In the upper-left corner of the page, select a region.
On the Clusters page, find the target dedicated cluster and click Modify in the Actions column.

Configure the following parameters.

The parameters include Dedicated cluster name, CPU overcommit ratio (from 100% to 300%), Storage overcommit ratio (from 100% to 200%), Maximum memory usage (from 0% to 100%), Resource allocation policy (Balanced allocation or Compact allocation), Host fault handling policy (Automatic host replacement or Manual host replacement), and Grant OS permissions (Enable or Disable).

Parameter	Description
Dedicated cluster name	A custom name for the dedicated cluster.
CPU Overcommit Ratio	The CPU overcommit ratio for the dedicated cluster. Note The value range and default value of this parameter vary by database engine. See the console for the specific values.
Storage Overcommit Ratio	The storage overcommit ratio for the dedicated cluster. You can modify this parameter only for dedicated clusters that run MySQL. Note The value range and default value of this parameter vary by database engine. See the console for the specific values.
Maximum Memory Usage	The maximum memory usage for each host in the dedicated cluster. Note The value range and default value of this parameter vary by database engine. See the console for the specific values.
Resource Allocation Policy	The default policy for allocating resources in the dedicated cluster. Valid values: Balanced Allocation: Maximizes system stability. This policy allocates resources first from hosts with few or no existing allocations. Compact Allocation: Maximizes resource utilization. This policy allocates resources first from older, more utilized hosts.
Host Troubleshooting Policy	The policy for handling host failures. Valid values: Automatic host replacement: The system automatically replaces a faulty host. Note If the faulty host has a cloud disk, the system automatically migrates its computing resources to a new host. If the faulty host does not have a cloud disk, the system first migrates the instances from the faulty host and then replaces the host. Manual host replacement: You must manually replace a faulty host.
Grant OS Permissions	Grants operating system (OS) permissions on hosts in dedicated clusters with MySQL, SQL Server, or PostgreSQL database engines. This allows you to log on to the hosts to upload and download files, and install software. Important Once enabled, this setting cannot be changed.

Click OK.

Delete a dedicated cluster

Log on to the ApsaraDB for MyBase console.
In the upper-left corner of the page, select the region.
On the Dedicated Clusters page, find the dedicated cluster and click Delete in the Actions column.
In the confirmation dialog box, click OK.