Start or stop a cluster - Elastic High Performance Computing

If all nodes of your cluster are pay-as-you-go Elastic Compute Service (ECS) instances, you can stop the cluster when you do not use it. This helps you save costs.

Usage notes

Before you stop a cluster, follow these steps to ensure data security and smooth operations:

Check queue status: Make sure that no queue is being created. This prevents queue exceptions, for example, the queue is not displayed in the queue list after you start the cluster.
Check job status: Make sure that no job is the Running or Pending state. This prevents data loss and job interruption.
Disable auto scaling: Disable the auto scaling feature to prevent nodes from being added while the cluster is being stopped.
Note
If you stop a cluster when a node is in an unstable state (for example, when the node is being installed or initialized), the node may be in the Abnormal state and unavailable.

Billing

In economical mode, you are not billed for computing resources (CPU and memory), image license fees, and bandwidth fees (for fixed public IP addresses), but you are billed for system disks, data disks, Elastic IP Addresses (EIPs), and shared storage fees. For more information, see Economical mode.

Note

Startup failure may occur as a result of inventory insufficiency caused by computing resource recycling.

Prerequisites

The cluster to be stopped is in the Running or Exception state.
The cluster to be started is in the Stopped state.

Stop a cluster

Note

After you stop the cluster in Economical mode, pay-as-you-go nodes in the cluster stop being billed for computing resources, but subscription nodes in the cluster continue being billed. For more information, see Economical mode.

Log on to the E-HPC console.
In the left part of the top navigation bar, select a region.
In the left-side navigation pane, click Cluster.
On the Cluster page, find the cluster that you want to stop and choose More > Stop Cluster.
In the Stop Cluster dialog box, click OK.
The cluster enters the Stopping state and then the Stopped state.

Start a cluster

Log on to the E-HPC console.
In the left part of the top navigation bar, select a region.
In the left-side navigation pane, click Cluster.
On the Cluster page, find the cluster that you want to start and choose More > Start Cluster.
In the Start Cluster dialog box, click OK.
The cluster enters the Initializing state and then the Running state.