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FAQs for Native Nodes

Last updated: 2024-06-14 16:28:43

    How Can We Configure System Disk Monitoring Alerts?

    1. Log in to TCOP, and choose Alert Management > Policy Management.
    2. Click Create New Policy and configure alerts.
    3. On the alert configuration page, select Cloud Product Monitoring as the monitoring type, and select either Container Service (2.0)/Node disk information or Container Service (2.0)/Node disk IO as the policy type.
    4. Sequentially select Region, Cluster and Node ID, and set the target native node as the alert object, as shown in the following figure:
    
    5. Select Total Disk Capacity, Disk Utilization, and Disk Write Bandwidth as alert metrics, as shown in the following figure:
    
    6. Click Next: Configure Alarm Notification. For alert notification configuration details, see Notification Template.
    7. Click Finish.

    How Can We View the Resource Quantity of a Container Within Itself?

    Background

    When viewing container resources in standard containers (for example, with the top command), the resources of the entire machine are visible. This can cause confusion for some monitoring, troubleshooting, and even some businesses (such as deciding the queue length based on certain parameters under proc). The native node image has the capability to control container resource visibility. By mounting cgroupfs to the host directory and then using bind mount to mount the directory's files to the corresponding /proc location in the container during creation, you can view the container's own resource quantity within itself. That is, commands like free, top, and loadavg within the container will display the container's own values.

    Usage

    You need to set the following annotation on the pod:
    Field annotation
    Meaning
    cloud.tencent.com/cgroupfs="*"
    This means all containers within the pod apply the cgroupfs capability.
    cloud.tencent.com/cgroupfs="container1,container2"
    This means that only container 1 and container 2 in the pod apply the cgroupfs capability.
    Note:
    This feature requires the containerd version to be later than 1.4.3-tke.3 or 1.6.9-tke.3.
    
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