Instance Status

Last updated: 2020-11-24 12:05:07

    CKafka runs an inspection program for each instance, which checks for metrics such as the number of connections to the instance, disk usage percentage, peak production bandwidth, and peak consumption bandwidth. The instance status varies based on these metric values. When one of the metric values exceeds a certain threshold, the instance status will change.

    Viewing Instance Statuses

    Log in to the CKafka console, and on the instance list page, view the health status of each instance.

    Status Description

    The instance status is determined by any one of the following 4 metrics: the number of connections, disk usage percentage, peak production bandwidth (excluding replica bandwidth), and peak consumption bandwidth. For more information, see the following table:

    MetricThreshold (N)Status Description
    Number of connections (default maximum value: 5000)N ≤ 80%Healthy
    80% < N ≤ 95%Warning
    N > 95%Exception
    Disk usage percentageN ≤ 80%Healthy
    80% < N ≤ 95%Warning
    N > 95%Exception
    Peak production bandwidth (excluding replica bandwidth)N ≤ 80%Healthy
    80% < N ≤ 100%Warning
    N > 100%Exception
    Peak consumption bandwidthN ≤ 80%Healthy
    80% < N ≤ 100%Warning
    N > 100%Exception

    Note:

    The maximum number of allowed connections to an instance is 5000 by default. The system determines thresholds based on this number. If the number of connections has reached the maximum value, clients cannot build new connections with the instance. If this default maximum number does not meet your business requirements, submit a ticket to set it to a larger number.

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