Update Notes of Monitoring at Five-Second Granularity

Last updated: 2021-03-25 16:45:35

    Update Description

    TencentDB for Redis has been updated with optimized monitoring features in the latest version.

    • The monitoring granularity is now narrowed from one minute to five seconds.
    • The monitoring data delay is now reduced to less than 20 seconds.
    • Monitoring, data collection, and alarms are now supported for replica nodes.
    • Monitoring, data collection, and alarms are now supported for Proxy nodes.
    • You can now compare monitoring metric values among multiple nodes.
    • New monitoring metrics are supported.

    Notes

    • By default, new instances (excluding CKV instances) support five-second granularity.
    • In the future, you can modify the monitoring granularity of existing instances from one minute to five seconds in the TencentDB for Redis console. Please pay attention to the notices and pop-up notifications in the console.
    • In the Cloud Monitor console, alarm policies for five-second granularity are of a different policy type from those for one-minute granularity. You can replicate the alarm policies for one-minute granularity and change their policy types to Memory Edition (5-second granularity), so that these alarm policies can be associated with new instances supporting five-second granularity.

      FAQs

      How do I tell whether an instance supports five-second or one-minute monitoring granularity?

    • Log in to the TencentDB for Redis console, click an instance name/ID and enter the instance management page, select System Monitoring > Monitoring Metrics, and click the Period drop-down list at the top. If you can select 5 seconds from the drop-down list, this instance supports the monitoring granularity of five seconds, or else it supports only the monitoring granularity of one minute.
    • Check the value of the InstanceSet.MonitorVersion field returned by the DescribeInstances API. If the value is 5s, this instance supports the monitoring granularity of five seconds; if the value is 1m, it supports only the monitoring granularity of one minute.

    How do I get information of Proxy or Redis nodes?

    Use the DescribeInstanceNodeInfo API to get the IDs of Proxy nodes and Redis nodes.

    Note:

    The IDs of Proxy and Redis nodes will change when node failover, instance capacity expansion/reduction, data migration, etc., occur. Therefore, we recommend that you get the latest node information from the API in a timely manner.

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