Help Center/ Cloud Container Engine/ User Guide/ Clusters/ Upgrading a Cluster/ Troubleshooting for Pre-upgrade Check Exceptions/ Node CPU Cores
Updated on 2025-04-07 GMT+08:00
Node CPU Cores
Check Items
Verify that the master nodes in your cluster have more than 2 CPU cores.
Solution
The master nodes have only 2 CPU cores, which may lead to a cluster upgrade failure.
Contact technical support to expand the number of CPU cores to four or more.
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