当描述一个节点时,会出现历史条件。
Conditions:
Type Status LastHeartbeatTime LastTransitionTime Reason Message
---- ------ ----------------- ------------------ ------ -------
NetworkUnavailable False Tue, 10 Aug 2021 10:55:23 +0700 Tue, 10 Aug 2021 10:55:23 +0700 CalicoIsUp Calico is running on this node
MemoryPressure False Mon, 16 Aug 2021 12:02:18 +0700 Thu, 12 Aug 2021 14:55:48 +0700 KubeletHasSufficientMemory kubelet has sufficient memory available
DiskPressure False Mon, 16 Aug 2021 12:02:18 +0700 Thu, 12 Aug 2021 14:55:48 +0700 KubeletHasNoDiskPressure kubelet has no disk pressure
PIDPressure False Mon, 16 Aug 2021 12:02:18 +0700 Thu, 12 Aug 2021 14:55:48 +0700 KubeletHasSufficientPID kubelet has sufficient PID available
Ready False Mon, 16 Aug 2021 12:02:18 +0700 Mon, 16 Aug 2021 11:54:02 +0700 KubeletNotReady PLEG is not healthy: pleg was last seen active 11m17.462332922s ago; threshold is 3m0s
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我有两个问题:
你是对的,该kubectl describe <NODE_NAME>
命令显示当前条件状态 ( False
/ True
)。
您可以使用以下命令监视节点事件:
# kubectl get events --watch --field-selector involvedObject.kind=Node
LAST SEEN TYPE REASON OBJECT MESSAGE
3m50s Warning EvictionThresholdMet node/kworker Attempting to reclaim inodes
44m Normal NodeHasDiskPressure node/kworker Node kworker status is now: NodeHasDiskPressure
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要仅查看与状态相关的事件,您可以grep
与前面的命令一起使用:
# kubectl get events --watch --field-selector involvedObject.kind=Node | grep "status is now"
44m Normal NodeHasDiskPressure node/kworker Node kworker status is now: NodeHasDiskPressure
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默认情况下,这些事件保留1 小时。但是,您可以从 Pod 内运行该命令,并使用Lokikubectl get events --watch --field-selector involvedObject.kind=Node
等日志聚合系统收集该命令的输出。我已在此处详细说明了此方法。
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