Início do trabalhador com falha CSINodeIfo: erro ao atualizar a anotação CSINode

10

Eu criei um cluster kubernetes 1 mestre e 2 nós de trabalho há 2 meses, hoje um nó de trabalho começou a falhar e não sei por quê. Acho que nada de anormal aconteceu com meu trabalhador.

Usei flanela e kubeadm para criar o cluster e estava funcionando muito bem.

Se eu descrever o nó:

tommy@bxybackend:~$ kubectl describe node bxybackend-node01
Name:               bxybackend-node01
Roles:              <none>
Labels:             beta.kubernetes.io/arch=amd64
                    beta.kubernetes.io/os=linux
                    kubernetes.io/arch=amd64
                    kubernetes.io/hostname=bxybackend-node01
                    kubernetes.io/os=linux
Annotations:        flannel.alpha.coreos.com/backend-data: {"VtepMAC":"06:ca:97:82:50:10"}
                    flannel.alpha.coreos.com/backend-type: vxlan
                    flannel.alpha.coreos.com/kube-subnet-manager: true
                    flannel.alpha.coreos.com/public-ip: 10.168.10.4
                    kubeadm.alpha.kubernetes.io/cri-socket: /var/run/dockershim.sock
                    node.alpha.kubernetes.io/ttl: 0
                    volumes.kubernetes.io/controller-managed-attach-detach: true
CreationTimestamp:  Sun, 03 Nov 2019 09:41:48 -0600
Taints:             node.kubernetes.io/not-ready:NoExecute
                    node.kubernetes.io/not-ready:NoSchedule
Unschedulable:      false
Conditions:
  Type             Status  LastHeartbeatTime                 LastTransitionTime                Reason                       Message
  ----             ------  -----------------                 ------------------                ------                       -------
  MemoryPressure   False   Wed, 11 Dec 2019 11:17:05 -0600   Wed, 11 Dec 2019 10:37:19 -0600   KubeletHasSufficientMemory   kubelet has sufficient memory available
  DiskPressure     False   Wed, 11 Dec 2019 11:17:05 -0600   Wed, 11 Dec 2019 10:37:19 -0600   KubeletHasNoDiskPressure     kubelet has no disk pressure
  PIDPressure      False   Wed, 11 Dec 2019 11:17:05 -0600   Wed, 11 Dec 2019 10:37:19 -0600   KubeletHasSufficientPID      kubelet has sufficient PID available
  Ready            False   Wed, 11 Dec 2019 11:17:05 -0600   Wed, 11 Dec 2019 10:37:19 -0600   KubeletNotReady              Failed to initialize CSINodeInfo: error updating CSINode annotation: timed out waiting for the condition; caused by: the server could not find the requested resource
Addresses:
  InternalIP:  10.168.10.4
  Hostname:    bxybackend-node01
Capacity:
 cpu:                12
 ephemeral-storage:  102684600Ki
 hugepages-1Gi:      0
 hugepages-2Mi:      0
 memory:             14359964Ki
 pods:               110
Allocatable:
 cpu:                12
 ephemeral-storage:  94634127204
 hugepages-1Gi:      0
 hugepages-2Mi:      0
 memory:             14257564Ki
 pods:               110
System Info:
 Machine ID:                 3afa24bb05994ceaaf00e7f22b9322ab
 System UUID:                80951742-F69F-6487-F2F7-BE2FB7FEFBF8
 Boot ID:                    115fbacc-143d-4007-90e4-7fdcb5462680
 Kernel Version:             4.15.0-72-generic
 OS Image:                   Ubuntu 18.04.3 LTS
 Operating System:           linux
 Architecture:               amd64
 Container Runtime Version:  docker://18.9.7
 Kubelet Version:            v1.17.0
 Kube-Proxy Version:         v1.17.0
PodCIDR:                     10.244.1.0/24
PodCIDRs:                    10.244.1.0/24
Non-terminated Pods:         (2 in total)
  Namespace                  Name                           CPU Requests  CPU Limits  Memory Requests  Memory Limits  AGE
  ---------                  ----                           ------------  ----------  ---------------  -------------  ---
  kube-system                kube-flannel-ds-amd64-sslbg    100m (0%)     100m (0%)   50Mi (0%)        50Mi (0%)      8m31s
  kube-system                kube-proxy-c5gxc               0 (0%)        0 (0%)      0 (0%)           0 (0%)         8m52s
Allocated resources:
  (Total limits may be over 100 percent, i.e., overcommitted.)
  Resource           Requests   Limits
  --------           --------   ------
  cpu                100m (0%)  100m (0%)
  memory             50Mi (0%)  50Mi (0%)
  ephemeral-storage  0 (0%)     0 (0%)
Events:
  Type     Reason                   Age                  From                           Message
  ----     ------                   ----                 ----                           -------
  Warning  SystemOOM                52m                  kubelet, bxybackend-node01     System OOM encountered, victim process: dotnet, pid: 12170
  Normal   NodeHasNoDiskPressure    52m (x12 over 38d)   kubelet, bxybackend-node01     Node bxybackend-node01 status is now: NodeHasNoDiskPressure
  Normal   NodeHasSufficientPID     52m (x12 over 38d)   kubelet, bxybackend-node01     Node bxybackend-node01 status is now: NodeHasSufficientPID
  Normal   NodeNotReady             52m (x6 over 23d)    kubelet, bxybackend-node01     Node bxybackend-node01 status is now: NodeNotReady
  Normal   NodeHasSufficientMemory  52m (x12 over 38d)   kubelet, bxybackend-node01     Node bxybackend-node01 status is now: NodeHasSufficientMemory
  Warning  ContainerGCFailed        52m (x3 over 6d23h)  kubelet, bxybackend-node01     rpc error: code = DeadlineExceeded desc = context deadline exceeded
  Normal   NodeReady                52m (x13 over 38d)   kubelet, bxybackend-node01     Node bxybackend-node01 status is now: NodeReady
  Normal   NodeAllocatableEnforced  43m                  kubelet, bxybackend-node01     Updated Node Allocatable limit across pods
  Warning  SystemOOM                43m                  kubelet, bxybackend-node01     System OOM encountered, victim process: dotnet, pid: 9699
  Warning  SystemOOM                43m                  kubelet, bxybackend-node01     System OOM encountered, victim process: dotnet, pid: 12639
  Warning  SystemOOM                43m                  kubelet, bxybackend-node01     System OOM encountered, victim process: dotnet, pid: 16194
  Warning  SystemOOM                43m                  kubelet, bxybackend-node01     System OOM encountered, victim process: dotnet, pid: 19618
  Warning  SystemOOM                43m                  kubelet, bxybackend-node01     System OOM encountered, victim process: dotnet, pid: 12170
  Normal   Starting                 43m                  kubelet, bxybackend-node01     Starting kubelet.
  Normal   NodeHasSufficientMemory  43m (x2 over 43m)    kubelet, bxybackend-node01     Node bxybackend-node01 status is now: NodeHasSufficientMemory
  Normal   NodeHasSufficientPID     43m (x2 over 43m)    kubelet, bxybackend-node01     Node bxybackend-node01 status is now: NodeHasSufficientPID
  Normal   NodeNotReady             43m                  kubelet, bxybackend-node01     Node bxybackend-node01 status is now: NodeNotReady
  Normal   NodeHasNoDiskPressure    43m (x2 over 43m)    kubelet, bxybackend-node01     Node bxybackend-node01 status is now: NodeHasNoDiskPressure
  Normal   Starting                 42m                  kubelet, bxybackend-node01     Starting kubelet.

Se eu assistir syslog no trabalhador: 

Dec 11 11:20:10 bxybackend-node01 kubelet[19331]: I1211 11:20:10.552152   19331 kuberuntime_manager.go:981] updating runtime config through cri with podcidr 10.244.1.0/24
Dec 11 11:20:10 bxybackend-node01 kubelet[19331]: I1211 11:20:10.552162   19331 kubelet_node_status.go:294] Setting node annotation to enable volume controller attach/detach
Dec 11 11:20:10 bxybackend-node01 kubelet[19331]: I1211 11:20:10.552352   19331 docker_service.go:355] docker cri received runtime config &RuntimeConfig{NetworkConfig:&NetworkConfig{PodCidr:10.244.1.0/24,},}
Dec 11 11:20:10 bxybackend-node01 kubelet[19331]: I1211 11:20:10.552600   19331 kubelet_network.go:77] Setting Pod CIDR:  -> 10.244.1.0/24
Dec 11 11:20:10 bxybackend-node01 kubelet[19331]: I1211 11:20:10.555142   19331 kubelet_node_status.go:70] Attempting to register node bxybackend-node01
Dec 11 11:20:10 bxybackend-node01 kubelet[19331]: I1211 11:20:10.652843   19331 reconciler.go:209] operationExecutor.VerifyControllerAttachedVolume started for volume "kube-proxy" (UniqueName: "kubernetes.io/configmap/d6b534db-c32c-491b-a665-cf1ccd6cd089-kube-proxy") pod "kube-proxy-c5gxc" (UID: "d6b534db-c32c-491b-a665-cf1ccd6cd089")
Dec 11 11:20:10 bxybackend-node01 kubelet[19331]: I1211 11:20:10.753179   19331 reconciler.go:209] operationExecutor.VerifyControllerAttachedVolume started for volume "xtables-lock" (UniqueName: "kubernetes.io/host-path/d6b534db-c32c-491b-a665-cf1ccd6cd089-xtables-lock") pod "kube-proxy-c5gxc" (UID: "d6b534db-c32c-491b-a665-cf1ccd6cd089")
Dec 11 11:20:10 bxybackend-node01 kubelet[19331]: I1211 11:20:10.753249   19331 reconciler.go:209] operationExecutor.VerifyControllerAttachedVolume started for volume "lib-modules" (UniqueName: "kubernetes.io/host-path/d6b534db-c32c-491b-a665-cf1ccd6cd089-lib-modules") pod "kube-proxy-c5gxc" (UID: "d6b534db-c32c-491b-a665-cf1ccd6cd089")
Dec 11 11:20:10 bxybackend-node01 kubelet[19331]: I1211 11:20:10.753285   19331 reconciler.go:209] operationExecutor.VerifyControllerAttachedVolume started for volume "kube-proxy-token-ztrh4" (UniqueName: "kubernetes.io/secret/d6b534db-c32c-491b-a665-cf1ccd6cd089-kube-proxy-token-ztrh4") pod "kube-proxy-c5gxc" (UID: "d6b534db-c32c-491b-a665-cf1ccd6cd089")
Dec 11 11:20:10 bxybackend-node01 kubelet[19331]: I1211 11:20:10.753316   19331 reconciler.go:209] operationExecutor.VerifyControllerAttachedVolume started for volume "run" (UniqueName: "kubernetes.io/host-path/6a2299cf-63a4-4e96-8b3b-acd373de12c2-run") pod "kube-flannel-ds-amd64-sslbg" (UID: "6a2299cf-63a4-4e96-8b3b-acd373de12c2")
Dec 11 11:20:10 bxybackend-node01 kubelet[19331]: I1211 11:20:10.753342   19331 reconciler.go:209] operationExecutor.VerifyControllerAttachedVolume started for volume "cni" (UniqueName: "kubernetes.io/host-path/6a2299cf-63a4-4e96-8b3b-acd373de12c2-cni") pod "kube-flannel-ds-amd64-sslbg" (UID: "6a2299cf-63a4-4e96-8b3b-acd373de12c2")
Dec 11 11:20:10 bxybackend-node01 kubelet[19331]: I1211 11:20:10.753461   19331 reconciler.go:209] operationExecutor.VerifyControllerAttachedVolume started for volume "flannel-cfg" (UniqueName: "kubernetes.io/configmap/6a2299cf-63a4-4e96-8b3b-acd373de12c2-flannel-cfg") pod "kube-flannel-ds-amd64-sslbg" (UID: "6a2299cf-63a4-4e96-8b3b-acd373de12c2")
Dec 11 11:20:10 bxybackend-node01 kubelet[19331]: I1211 11:20:10.753516   19331 reconciler.go:209] operationExecutor.VerifyControllerAttachedVolume started for volume "flannel-token-ts2qt" (UniqueName: "kubernetes.io/secret/6a2299cf-63a4-4e96-8b3b-acd373de12c2-flannel-token-ts2qt") pod "kube-flannel-ds-amd64-sslbg" (UID: "6a2299cf-63a4-4e96-8b3b-acd373de12c2")
Dec 11 11:20:10 bxybackend-node01 kubelet[19331]: I1211 11:20:10.753531   19331 reconciler.go:156] Reconciler: start to sync state
Dec 11 11:20:12 bxybackend-node01 kubelet[19331]: I1211 11:20:12.052813   19331 kubelet_node_status.go:112] Node bxybackend-node01 was previously registered
Dec 11 11:20:12 bxybackend-node01 kubelet[19331]: I1211 11:20:12.052921   19331 kubelet_node_status.go:73] Successfully registered node bxybackend-node01
Dec 11 11:20:13 bxybackend-node01 kubelet[19331]: E1211 11:20:13.051159   19331 csi_plugin.go:267] Failed to initialize CSINodeInfo: error updating CSINode annotation: timed out waiting for the condition; caused by: the server could not find the requested resource
Dec 11 11:20:16 bxybackend-node01 kubelet[19331]: E1211 11:20:16.051264   19331 csi_plugin.go:267] Failed to initialize CSINodeInfo: error updating CSINode annotation: timed out waiting for the condition; caused by: the server could not find the requested resource
Dec 11 11:20:18 bxybackend-node01 kubelet[19331]: E1211 11:20:18.451166   19331 csi_plugin.go:267] Failed to initialize CSINodeInfo: error updating CSINode annotation: timed out waiting for the condition; caused by: the server could not find the requested resource
Dec 11 11:20:21 bxybackend-node01 kubelet[19331]: E1211 11:20:21.251289   19331 csi_plugin.go:267] Failed to initialize CSINodeInfo: error updating CSINode annotation: timed out waiting for the condition; caused by: the server could not find the requested resource
Dec 11 11:20:25 bxybackend-node01 kubelet[19331]: E1211 11:20:25.019276   19331 csi_plugin.go:267] Failed to initialize CSINodeInfo: error updating CSINode annotation: timed out waiting for the condition; caused by: the server could not find the requested resource
Dec 11 11:20:46 bxybackend-node01 kubelet[19331]: E1211 11:20:46.772862   19331 csi_plugin.go:267] Failed to initialize CSINodeInfo: error updating CSINode annotation: timed out waiting for the condition; caused by: the server could not find the requested resource
Dec 11 11:20:46 bxybackend-node01 kubelet[19331]: F1211 11:20:46.772895   19331 csi_plugin.go:281] Failed to initialize CSINodeInfo after retrying
Dec 11 11:20:46 bxybackend-node01 systemd[1]: kubelet.service: Main process exited, code=exited, status=255/n/a
Dec 11 11:20:46 bxybackend-node01 systemd[1]: kubelet.service: Failed with result 'exit-code'.
kubernetes  kubeadm 
— Tommy
fonte
eu só ver que o nó problema é em outra versão Nome Papéis STATUS AGE VERSÃO bxybackend Pronto mestre 38D v1.16.2 bxybackend-node01 NotReady <nenhum> 38d v1.17.0 bxybackend-node02 Pronto <nenhum> 38d v1.16.2
— Tommy

Respostas:

11

Durante a instalação do kubeadm, você deve executar o seguinte comando para conter os pacotes kubelet, kubeadm e kubectl e impedir que eles sejam atualizados por engano. 

$ sudo apt-mark hold kubelet kubeadm kubectl

Reproduzi seu cenário e o que aconteceu com seu cluster é que, três dias atrás, uma nova versão do Kubernetes foi lançada (v 1.17.0) e seu kubelet foi atualizado acidentalmente.

No novo Kubernetes, algumas alterações foram feitas no CSI e é por isso que você tem alguns problemas neste nó.

Sugiro que você drene esse nó, configure um novo com o Kubernetes 1.16.2 e junte o novo ao seu cluster.

Para drenar esse nó, você precisa executar:

$ kubectl drain bxybackend-node01 --delete-local-data --force --ignore-daemonsets

Opcionalmente, você pode fazer o downgrade do seu kubelet para a versão anterior usando o seguinte comando: 

$ sudo apt-get install kubelet=1.16.2-00

Não se esqueça de marcar seu kubelet para impedir que ele seja atualizado novamente: 

$ sudo apt-mark hold kubelet

Você pode usar o comando apt-mark showholdpara listar todos os pacotes retidos e verificar se o kubelet, kubeadm e kubectl estão em espera.

Para atualizar de 1.16.x para 1.17.x, siga este guia da documentação do Kubernetes. Eu o validei e funciona como pretendido.

— mWatney
fonte
Estou enfrentando o mesmo problema em que parece que o kubernetes foi atualizado automaticamente para 1.17.0. Nenhum dos meus nós está pronto para o relatório, incluindo o mestre. Você está sugerindo a reversão para 1.16.2?
— Code Junkie
11
Enfrentou o mesmo problema após um patch de rotina dos servidores no ambiente de teste.
— Bhesh Gurung 12/12/19
11
Revertendo para a versão 1.16.4, existe alguma recomendação sobre como passar para a versão 1.17?
— Code Junkie
2
@ CodeJunkie Adicionei informações sobre como atualizar para a 1.17.
— mWatney
2
Obrigado, segui o mesmo guia ontem e consegui atualizar com sucesso. Existe alguma maneira de criar scripts para lidar automaticamente com essas atualizações durante o patch?
— Code Junkie
0

Também enfrentei esse mesmo problema hoje no CentOS Linux versão 7.7.1908. Minha versão do kubernetes era a v1.16.3 e executei o comando "yum update" e a versão do kubernetes foi atualizada para a v1.17.0. Depois disso, fiz o "yum history undo" no "e depois voltei para a versão antiga do kubernetes e ele começou a funcionar novamente. Depois disso, segui o método de atualização oficial e agora o kubernetes v1.17.0 está funcionando bem sem nenhum problema.

root@kube-master1:/root>kubectl get no -o wide
NAME           STATUS   ROLES    AGE    VERSION   INTERNAL-IP       EXTERNAL-IP   OS-IMAGE                KERNEL-VERSION               CONTAINER-RUNTIME
kube-master1   Ready    master   7d9h   v1.17.0   192.168.159.135   <none>        CentOS Linux 7 (Core)   3.10.0-1062.9.1.el7.x86_64   docker://1.13.1
kube-worker1   Ready    worker   7d9h   v1.17.0   192.168.159.136   <none>        CentOS Linux 7 (Core)   3.10.0-1062.9.1.el7.x86_64   docker://1.13.1
kube-worker2   Ready    worker   7d9h   v1.17.0   192.168.159.137   <none>        CentOS Linux 7 (Core)   3.10.0-1062.9.1.el7.x86_64   docker://1.13.1
root@kube-master1:/root>
— Arunabha
fonte
Obrigado pelo seu post! Seria ótimo se você pudesse postar um link para o official upgrade method!
— Mark
@ Mark, no meu post, você pode encontrar este link para a documentação oficial, onde é descrito como fazê-lo no Ubuntu, Debian, HypriotOS, CentOS, RHEL ou Fedora.
— MWatney
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