Node Label and Taint Check

Check Item

• Check whether custom node labels are lost.
• Check whether there are any unexpected taints newly added on the node, which will affect workload scheduling.

Procedure

Go to the CCE console, access the cluster console, and choose Nodes in the navigation pane. On the displayed page, click the Nodes tab, select all nodes, and click Manage Labels and Taints to view the labels and taints of the current node.

Solution

Custom labels will not be changed during a cluster upgrade. If you find that labels are lost or added unexpectedly, contact technical support.

If you find a new taint (node.kubernetes.io/upgrade) on a node, the node may be skipped during the upgrade. For details, see Node Skipping Check.

If you find that other taints are added to the node, contact technical support.