What Are the Scenarios of Resizing a Cluster, Changing the Node Flavor, Scale-out, and Scale-in?
Resizing a cluster has a great impact on your workloads. It is similar to migrating an old cluster to a new one, with changes on nodes and specifications. You are advised to perform lightweight operations, such as scale-out, scale-in, and flavor change. The following table lists the application scenarios of the cluster modification options.
Option |
Applicable Scenario |
Remarks |
---|---|---|
Scale-out |
If your business grows and you have higher requirements on storage capacity and performance, or the CPU of your cluster is insufficient, you are advised to scale out your cluster. |
Nodes cannot be added to a hybrid data warehouse (standalone). |
Scale-in |
During off-peak hours when a large amount of cluster capacity is idle, you can reduce the number of nodes to reduce costs. |
A hybrid data warehouse (cluster mode) cannot be scaled in to a standalone cluster. |
Changing the Node Flavor |
This option changes cluster flavors (including CPU, memory, and others) to meet service requirements. It does not change the number of nodes. |
Currently, you can only change the flavors of cloud data warehouse clusters and stream data warehouse clusters that only use ECS and EVS resources for computing and storage. |
Changing all specifications |
You can resize your cluster when:
|
Currently, only standard data warehouse clusters are supported. |
Cluster Management FAQs
- What Do I Do If Creating a GaussDB(DWS) Cluster Failed?
- How Can I Clear and Reclaim the Storage Space?
- Can I Switch My Cluster Nodes to Another Region After Purchase?
- Why Did the Used Storage Shrink After Scale-out?
- How Do I View Node Metrics (CPU, Memory, and Disk Usage)?
- Does GaussDB(DWS) Support a Single Node for a Learning Environment?
- Does GaussDB(DWS) Support BMS?
- How Is the Disk Space or Capacity of GaussDB(DWS) Calculated?
- What Are the gaussdb and postgres Databases of GaussDB(DWS)?
- How Do I Set the Maximum Number of Sessions When Adding an Alarm Rule on Cloud Eye?
- How Do I Determine Whether a Cluster Uses the x86 or Arm Architecture?
- What Should I Do If the Scale-out Check Fails?
- When Should I Add CNs or Scale out a cluster?
- What Are the Scenarios of Resizing a Cluster, Changing the Node Flavor, Scale-out, and Scale-in?
- How Should I Select from a Small-Flavor Many-Node Cluster and a Large-Flavor Three-Node Cluster with Same CPU Cores and Memory?
- What Are the Differences Between Cloud SSDs and Local SSDs?
- What Are the Differences Between Hot Data Storage and Cold Data Storage?
- What Do I do if the Scale-in Button Is Dimmed?
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