1.通过kubectl logs -n kube-system kube-controller-manager-xxx查看kube-controller-manager日志,日志显示“failed to renew lease kube-system/kube-controller-manager: failed to tryAcquireOrRenew context deadline exceeded” 2.参考一次kube-controller-manager的bug导致的线上无法调度处理过程,通过kubectl get --...
lease renew failed, 首先就想到kube-controller-manager和kube-scheduler有问题。 kube-scheduler是负责调度的应该不是问题所在,应该是kube-controller-manager的问题,因为nfs-provisioner本质也是一个controller。controller manager是所有controller的管理者是k8的大脑。 排查kube-controller-manager 这块的排查耗时最久,究其原...
接着查看k8s的管理组件kube-controller-manager的日志,发现kube-controller-manager一直不断发生着重启,如图: 从上可以看出kube-controller-manager的leader一直不断切换,而kube-controller-manager的选举机制就是从etcd里去拿lease,谁先抢到谁就定义自己是leader,由于etcd反应慢,就可能出现leader更替,controller-manager会定期...
重启的pod为kube-controller-manager、kube-scheduler等均为需要选主的服务。 以kube-controller-manager为例,配置文--leader-elect=true选项开启选主,--leader-elect-renew-deadline duration选项官方推荐默认配置为10s,超过十秒则选主续约失败,相应endpoint更新失败,默认连接超时,关闭容器进行重启 etcd、api-server日志...
Knowledgebase kube-controller-manager (KCM) gets restarted while it is detaching an in-tree vSphere volume from a ... kube-controller-manager (KCM) gets restarted while it is detaching an in-tree vSphere volume from a node Solution In Progress - Updated June 13 2024 at 6:57 PM - English...
线上遇到kube-controller-manager重启慢的问题,具体表现为进程重启虽然速度快,但是重启完所有数据都同步完一遍耗时很长,集群中大约5000个statefulset,在还没同步完一遍数据之前如果有statefulset的创建、删除、修改等操作,可能(和具体statefulset的操作有关,新建的情况肯定是在最后,更新和删除的情况需要看同名的statefulset是否...
1.尝试重启pod,查看describe还是同样的报错 kubectl delete pod kube-controller-manager-10.249.176.105 -n kube-system 2.docker ps -a查看,发现pause这个一直没有重启过 3.通过docker关闭pause, 不能关闭,然后强制删除此服务 docker rm ** -f 4.再去重启kube-controller-manager,发现服务恢复正常 ...
What happened: i've just kubeadm init --pod-network-cidr=10.244.0.0/16 all pods are running but kube-controller-manager-kmaster always restarts coredns-86c58d9df4-542lg 1/1 Running 0 46m 10.244.0.31 kmaster coredns-86c58d9df4-5slzr 1/1 R...
[root@k8s-master ~]# kubectl logs -n kube-system kube-controller-manager-k8s-masterI0513 13:49:51.836448 1 serving.go:319] Generated self-signed cert in-memory I0513 13:49:52.988794 1 controllermanager.go:155] Version: v1.14.1 I0513 13:49:53.003873 1 secure_serving.go...