k8s

目录

1.kube-flannel报错Failed to create SubnetManager: error retrieving pod spec for kube-system-xxxx: dial tcp 10.233.0.1:443: i/o time

2.Pod启动异常报错cpu.cfs_quota_us: invalid argument\\\"\"": unknown

1.kube-flannel报错Failed to create SubnetManager: error retrieving pod spec for kube-system-xxxx: dial tcp 10.233.0.1:443: i/o time

可以先检查kube-proxy是否正常启动，如果kube-proxy无法启动，也无法强制停止/删除该服务，可按如下处理：

从etcd强制删除kube-proxy，使kube-proxy强制重启，待kube-proxy启动后，flannel及其它组件均可恢复

export ETCDCTL_CACERT=/etc/ssl/etcd/ssl/ca.pem
export ETCDCTL_CERT=/etc/ssl/etcd/ssl/admin-controller-xx.pem
export ETCDCTL_KEY=/etc/ssl/etcd/ssl/admin-controller-xx-key.pem

etcdctl del /registry/pods/kube-system/kube-proxy-xxxxxx  

根因：kube-proxy无法启动，进而无法维护节点上的网络规则，也无法删除，导致flannel启动后无法通过网络规则连接到apiserver

2.Pod启动异常报错cpu.cfs_quota_us: invalid argument\\\"\"": unknown

根因：是一个内核bug，执行脚本修复