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    ApsaraDB for ClickHouse:Manually start and stop a cluster

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    ApsaraDB for ClickHouse:Manually start and stop a cluster

    Last Updated:May 14, 2024

    This topic describes how to manually start and stop an ApsaraDB for ClickHouse Enterprise Edition cluster to help you reduce costs.

    Background information

    ApsaraDB for ClickHouse Enterprise Edition allows you to manually start and stop a cluster. This reduces the costs of using the service. If your cluster is inactive without read or write operations and merge tasks, you can stop the cluster. Then, the cluster enters the suspended state and does not consume computing resources. The number of compute capacity units (CCUs) is zero. Therefore, computing fees are not generated. If read or write requests are sent to your cluster or merge tasks are created in your cluster, you can start the cluster. The cluster resumes operation and computing fees are generated.

    Prerequisites

    An ApsaraDB for ClickHouse Enterprise Edition cluster is created. For more information, see Create an ApsaraDB for ClickHouse cluster.

    Usage notes

    • If a cluster is being suspended or started, the cluster can only be accessed. Management operations such as cluster scaling and restart are not supported.

    • If a cluster is suspended, a timeout error is returned when a data access request is sent to the cluster.

    • The restart of a cluster takes about 5 minutes. In this case, request latency needs to be tolerated for service access.

    Stop a cluster

    1. Log on to the ApsaraDB for ClickHouse console.

    2. In the top navigation bar, select the region in which the cluster that you want to manage resides.

    3. On the Clusters page, click the Enterprise Edition Clusters tab.

    4. Click the image.png icon in the Actions column of the cluster that you want to manage, and then click Suspend.

    5. In the Suspend Cluster message, click OK.

      Note

      About 5 minutes are required to suspend the cluster. If the state of the cluster changes from Suspending to Suspended, the cluster is suspended.

    Start a cluster

    1. Log on to the ApsaraDB for ClickHouse console.

    2. In the top navigation bar, select the region in which the cluster that you want to manage resides.

    3. On the Clusters page, click the Enterprise Edition Clusters tab.

    4. Click the image.png icon in the Actions column of the cluster that you want to manage, and then click Start.

    5. In the Start Cluster message, click OK.

      Note

      About 5 minutes are required to start the cluster. If the state of the cluster changes from Starting to Running, the cluster is started.