Monitoring and Warning

Last updated: 2020-06-30 14:10:15

    Monitoring and Alarms help ensure high reliability, high availability, and high performance of CVMs. This document describes the monitoring and alarm features provided by CVM. For more details, please see Cloud Monitor product documentation.


    CVM monitoring and alarms are management tools used to monitor CVM in real time. The monitoring and alarm features can display the most complete and detailed monitoring data, extract key metrics from the CVM in real time, and display them in monitoring charts. The features help you gain a comprehensive understanding of the resource usage, performance, and operating status of the CVM. You can also configure custom alarm thresholds and send notifications based on your custom rules.

    Basic Features

    On the console, you can access the following features of CVM monitoring and alarms:

    Module Capability Main Features
    Monitor Overview Cloud Monitor overview General overview, alarm overview, and monitoring information overview
    My Alarms Supports custom alarm threshold Supports alarm configuration for CVM
    Cloud Product Monitoring Visualizes cloud product monitoring Views CVM monitoring
    Custom Monitoring Views custom monitoring metrics Views custom monitoring metrics and reported data
    Data Usage Monitoring Data usage monitoring View the user's overall bandwidth information

    For more information, please see Cloud Monitor Overview.

    Application Scenarios

    • Daily management: Log in to the Cloud Monitoring Console to view the monitoring information of all your cloud products.
    • Timely handling of exceptions: Cloud Monitor will send you alarm notifications promptly when the monitoring data reaches the alarm threshold so that you can troubleshoot the causes.
    • Timely expansion: You can configure alarm policies for bandwidth, the number of connections, disk utilization and other monitoring items to check the overall status of your Tencent Cloud services. You will receive alarm notifications when business surges and can expand your CVMs accordingly.

    Monitoring Items

    To benchmark instance performance, you should at least monitor the following items:

    Monitoring Item Monitoring Metric
    CPU utilization cpu_usage
    Memory utilization mem_usage
    Outbound bandwidth of private network lan_outtraffic
    Inbound bandwidth of private network lan_intraffic
    Outbound bandwidth of public network wan_outtraffic
    Inbound bandwidth of public network wan_intraffic
    Disk utilization disk_usage
    Disk I/O waiting time disk_io_await

    Monitoring Data

    • Monitoring interval: Cloud Monitor provides monitoring data at different statistical granularities, including 1 minute, 5 minutes, 1 hour, and 1 day. CVM supports the monitoring granularity of 1 minute, meaning data is collected every 1 minute. The default interval is 5 minutes.
    • Data storage: monitoring data at a 1-minute, 5-minute, and 1-hour granularity will be retained for 31 days; monitoring data at a 1-day granularity will be retained for half a year.
    • Alarm display: data is displayed in easy-to-read charts. Cloud Monitoring Console includes the monitoring data of all products to give you a comprehensive overview of their running status.
    • Alarm setting: you can set limits for monitoring metrics. When the condition is met, alarm notification will be sent to the recipient group promptly. For more information, please see Creating Alarm Policies.

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