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Dong, Qiu Jian b05d81fd8b CCE UMN for 1.23 reuploaded -20221103 
Reviewed-by: gtema <artem.goncharov@gmail.com>
Co-authored-by: Dong, Qiu Jian <qiujiandong1@huawei.com>
Co-committed-by: Dong, Qiu Jian <qiujiandong1@huawei.com>
2022-11-10 19:50:29 +00:00

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Instance Eviction Exception

When a node is faulty, pods on the node are evicted to ensure workload availability. If the pods are not evicted when the node is faulty, perform the following steps:

Check Item 1: Whether Tolerations Have Been Configured on the Pod

Use kubectl or choose More > Edit YAML next to the corresponding workload to check whether tolerations are installed on the workload. For details, see https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/.

Check Item 2: Whether the Conditions for Stopping Pod Eviction Are Met

If the number of nodes in a cluster is smaller than 50 and the number of faulty nodes accounts for over 55% of the total nodes, the pod eviction will be suspended. In this case, K8s will attempt to evict the workload on the faulty node. For details, see https://kubernetes.io/docs/concepts/architecture/nodes/.

Parent topic: Workload Abnormalities