现象：
kubelet启动报错
unsupported on machines with more than %v NUMA Nodes
原因：
// maxAllowableNUMANodes specifies the maximum number of NUMA Nodes that
// the TopologyManager supports on the underlying machine.
//
// At present, having more than this number of NUMA Nodes will result in a
// state explosion when trying to enumerate possible NUMAAffinity masks and
// generate hints for them. As such, if more NUMA Nodes than this are
// present on a machine and the TopologyManager is enabled, an error will
// be returned and the TopologyManager will not be loaded.
maxAllowableNUMANodes = 8
k8s默认 numa node不能大于8，
// pkg/kubelet/cm/topologymanager/topology_manager.go
if topologyPolicyName != PolicyNone && len(numaInfo.Nodes) > maxAllowableNUMANodes {
return nil, fmt.Errorf("unsupported on machines with more than %v NUMA Nodes", maxAllowableNUMANodes)
}
解决办法
const (
maxAllowableNUMANodes = 16 // 例如在这里修改为16
// ErrorTopologyAffinity represents the type for a TopologyAffinityError
ErrorTopologyAffinity = "TopologyAffinityError"
)
然后重新编译二进制
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