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Upgrading CLB Instance

Last updated: 2022-03-11 11:38:44

    CLB instance specifications include shared and LCU-supported instances. By default, all instances are shared instances and can be upgraded to LCU-supported instances.

    Benefits of Upgrade

    • A shared instance can sustain up to 50,000 concurrent connections, 5,000 new connections per second, and 5,000 queries per second (QPS). It enjoys a dedicated forwarding performance within the guaranteed performance range and uses the shared cluster resources for excessive performance, which may cause performance preemption.
    • After being upgraded to an LCU-supported instance, a single instance can sustain up to 1 million concurrent connections, 100,000 new connections per second, and 50,000 QPS. For instances with higher specifications, submit a ticket for application.

    Impact of Upgrade

    • After upgrade, LCU fees will be charged hourly by the actually consumed performance. For more information, see LCU Pricing.
    • After upgrade, the instance performance limits are 1 million concurrent connections, 100,000 new connections per second, and 50,000 QPS. If a limit is exceeded, speed throttling and packet loss may occur.
    • After upgrade, if the actually consumed performance doesn't exceed any instance performance limit, existing connections will not be affected.
    • Once upgraded, an instance cannot be downgraded to shared instance.
    • The billing mode will not change after upgrade.
    • The upgrade doesn't interrupt network connections and can be completed within 1 minute.

    Restrictions on Upgrade

    • Currently, the LCU-supported instance type is in beta. To upgrade to or purchase one, submit a ticket for application.
    • You can batch upgrade multiple pay-as-you-go shared instances.
    • Classic CLB instances cannot be upgraded to LCU-supported instances.
    • Classic network CLB instances cannot be upgraded to LCU-supported instances.
    • Currently, you cannot purchase or upgrade to private network LCU-supported instances. For the specific release time, check the Tencent Cloud official website regularly.

    How to Upgrade

    1. Log in to the CLB console and click Instance Management on the left sidebar.
    2. In the CLB instance list, select the target shared instance and click Upgrade above the instance list.
    3. In the Instance Upgrade pop-up window, click OK.

    References

    LCU Pricing

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