после конфигурации kubelet зарезервированный ресурс, kubelet не может обрабатывать cgroup - PullRequest
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после конфигурации kubelet зарезервированный ресурс, kubelet не может обрабатывать cgroup

0 голосов
/ 21 января 2020

У меня мало вопросов для kubelet-reserved-resoure. я не знаю, что моя конфигурация на самом деле работает или нет.

step1: я создаю cgroup dir с помощью следующей команды 

for i in `ls -L /sys/fs/cgroup`; do mkdir -p /sys/fs/cgroup/$i/kube-reserved.slice; done
for i in `ls -L /sys/fs/cgroup`; do mkdir -p /sys/fs/cgroup/$i/system-reserved.slice; done

step2: добавьте аргументы kubelet, например: 

--enforce-node-allocatable=pods,kube-reserved,system-reserved \
  --kube-reserved=cpu=1,memory=1Gi \
  --kube-reserved-cgroup=/kube-reserved.slice \
  --system-reserved=cpu=1,memory=1Gi \
  --system-reserved-cgroup=/system-reserved.slice \
  --cgroup-root=/ --v=4

после запуска кублета. Я вижу, что узел Allocatable изменен, как я и ожидал. 

Capacity:
 cpu:                8
 ephemeral-storage:  9480420Ki
 hugepages-1Gi:      0
 hugepages-2Mi:      0
 memory:             16414252Ki
 pods:               110
Allocatable:
 cpu:                6
 ephemeral-storage:  8737155058
 hugepages-1Gi:      0
 hugepages-2Mi:      0
 memory:             14214700Ki
 pods:               110

Журналы Kubelet для system-reserved.slice: 

root@k8s-node02:~# journalctl -xeu kubelet |grep -v ignoring |grep system-reserved.slice
Jan 20 11:23:46 k8s-node02 kubelet[7117]: I0120 11:23:46.712207    7117 factory.go:177] Factory "docker" was unable to handle container "/system-reserved.slice"
Jan 20 11:23:46 k8s-node02 kubelet[7117]: I0120 11:23:46.712214    7117 factory.go:166] Error trying to work out if we can handle /system-reserved.slice: /system-reserved.slice not handled by systemd handler
Jan 20 11:23:46 k8s-node02 kubelet[7117]: I0120 11:23:46.712218    7117 factory.go:177] Factory "systemd" was unable to handle container "/system-reserved.slice"
Jan 20 11:23:46 k8s-node02 kubelet[7117]: I0120 11:23:46.712225    7117 factory.go:177] Factory "containerd" was unable to handle container "/system-reserved.slice"
Jan 20 11:24:46 k8s-node02 kubelet[7117]: I0120 11:24:46.715222    7117 factory.go:177] Factory "docker" was unable to handle container "/system-reserved.slice"
Jan 20 11:24:46 k8s-node02 kubelet[7117]: I0120 11:24:46.715229    7117 factory.go:166] Error trying to work out if we can handle /system-reserved.slice: /system-reserved.slice not handled by systemd handler
Jan 20 11:24:46 k8s-node02 kubelet[7117]: I0120 11:24:46.715232    7117 factory.go:177] Factory "systemd" was unable to handle container "/system-reserved.slice"
Jan 20 11:24:46 k8s-node02 kubelet[7117]: I0120 11:24:46.715238    7117 factory.go:177] Factory "containerd" was unable to handle container "/system-reserved.slice"

Журналы Kubelet для kube-reserved.slice: 

root@k8s-node02:~# journalctl -xeu kubelet |grep -v ignoring |grep kube-reserved.slice
Jan 20 11:23:46 k8s-node02 kubelet[7117]: I0120 11:23:46.711765    7117 factory.go:177] Factory "docker" was unable to handle container "/kube-reserved.slice"
Jan 20 11:23:46 k8s-node02 kubelet[7117]: I0120 11:23:46.711772    7117 factory.go:166] Error trying to work out if we can handle /kube-reserved.slice: /kube-reserved.slice not handled by systemd handler
Jan 20 11:23:46 k8s-node02 kubelet[7117]: I0120 11:23:46.711776    7117 factory.go:177] Factory "systemd" was unable to handle container "/kube-reserved.slice"
Jan 20 11:23:46 k8s-node02 kubelet[7117]: I0120 11:23:46.711783    7117 factory.go:177] Factory "containerd" was unable to handle container "/kube-reserved.slice"
Jan 20 11:24:46 k8s-node02 kubelet[7117]: I0120 11:24:46.713871    7117 factory.go:177] Factory "docker" was unable to handle container "/kube-reserved.slice"
Jan 20 11:24:46 k8s-node02 kubelet[7117]: I0120 11:24:46.713877    7117 factory.go:166] Error trying to work out if we can handle /kube-reserved.slice: /kube-reserved.slice not handled by systemd handler
Jan 20 11:24:46 k8s-node02 kubelet[7117]: I0120 11:24:46.713880    7117 factory.go:177] Factory "systemd" was unable to handle container "/kube-reserved.slice"
Jan 20 11:24:46 k8s-node02 kubelet[7117]: I0120 11:24:46.713886    7117 factory.go:177] Factory "containerd" was unable to handle container "/kube-reserved.slice"

это нормально для установки ресурса-зарезервировано? или моя конфигурация неверна?

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