关于Heapster这个东西，有个问题不知道怎么解决

来源：1-7 安装dashboard和heapster并验证集群安装结果

喵的薛定谔i

2018-10-11

上一个问题问了三个pods处于ContainerCreating的状态

使用kubectl describe查看pods的情况，查看到Envents是如下的输出：

Events:
  Type     Reason                  Age                 From           Message
  ----     ------                  ----                ----           -------
  Warning  FailedCreatePodSandBox  3m (x316 over 21h)  kubelet, k8s2  Failed create pod sandbox: rpc error: code = DeadlineExceeded desc = context deadline exceeded

使用journalctl -u kubelet -f在k8s2中查看，有以下几个显示failed的错误：

Oct 11 15:57:17 k8s2 kubelet[4473]: E1011 15:57:17.627737    4473 kuberuntime_manager.go:646] createPodSandbox for pod "monitoring-influxdb-78d4c6f5b6-nqzrv_kube-system(335fc7b3-cc7a-11e8-a834-fa163e47331c)" failed: rpc error: code = DeadlineExceeded desc = context deadline exceeded
Oct 11 15:57:17 k8s2 kubelet[4473]: E1011 15:57:17.627803    4473 pod_workers.go:186] Error syncing pod 335fc7b3-cc7a-11e8-a834-fa163e47331c ("monitoring-influxdb-78d4c6f5b6-nqzrv_kube-system(335fc7b3-cc7a-11e8-a834-fa163e47331c)"), skipping: failed to "CreatePodSandbox" for "monitoring-influxdb-78d4c6f5b6-nqzrv_kube-system(335fc7b3-cc7a-11e8-a834-fa163e47331c)" with CreatePodSandboxError: "CreatePodSandbox for pod \"monitoring-influxdb-78d4c6f5b6-nqzrv_kube-system(335fc7b3-cc7a-11e8-a834-fa163e47331c)\" failed: rpc error: code = DeadlineExceeded desc = context deadline exceeded"
Oct 11 15:57:18 k8s2 kubelet[4473]: W1011 15:57:18.218956    4473 raw.go:87] Error while processing event ("/sys/fs/cgroup/memory/libcontainer_11815_systemd_test_default.slice": 0x40000100 == IN_CREATE|IN_ISDIR): inotify_add_watch /sys/fs/cgroup/memory/libcontainer_11815_systemd_test_default.slice: no such file or directory
Oct 11 15:57:18 k8s2 kubelet[4473]: W1011 15:57:18.219807    4473 raw.go:87] Error while processing event ("/sys/fs/cgroup/devices/libcontainer_11815_systemd_test_default.slice": 0x40000100 == IN_CREATE|IN_ISDIR): inotify_add_watch /sys/fs/cgroup/devices/libcontainer_11815_systemd_test_default.slice: no such file or directory
Oct 11 15:57:18 k8s2 kubelet[4473]: W1011 15:57:18.231657    4473 container.go:393] Failed to create summary reader for "/libcontainer_11820_systemd_test_default.slice": none of the resources are being tracked.

请问这是什么意思？如何解决呢？重新kubectl delete，重新create，仍然解决不了

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1回答

tonybai

2018-10-12

重启一下docker试试。另外你的环境是？docker啥版本，操作系统内核版本？

喵的薛定谔i

docker版本是17.03.2-ce； master节点的系统信息是：Linux version 4.13.0-36-generic (buildd@lgw01-amd64-033) (gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.9)) #40~16.04.1-Ubuntu SMP Fri Feb 16 23:25:58 UTC 2018； worker的k8s2信息是：Linux version 4.4.0-91-generic (buildd@lcy01-11) (gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4) ) #114-Ubuntu SMP Tue Aug 8 11:56:56 UTC 2017 worker的k8s3版本是：Linux version 4.4.0-132-generic (buildd@lcy01-amd64-027) (gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.10) ) #158-Ubuntu SMP Thu Aug 2 09:08:04 UTC 2018

2018-10-12

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