{"action":"created","issue":{"url":"https://api.github.com/repos/kubernetes/kubernetes/issues/68672","repository_url":"https://api.github.com/repos/kubernetes/kubernetes","labels_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/68672/labels{/name}","comments_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/68672/comments","events_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/68672/events","html_url":"https://github.com/kubernetes/kubernetes/issues/68672","id":360259636,"node_id":"MDU6SXNzdWUzNjAyNTk2MzY=","number":68672,"title":"performance issue during k8s starting a pod container","user":{"login":"Cherishty","id":10758629,"node_id":"MDQ6VXNlcjEwNzU4NjI5","avatar_url":"https://avatars0.githubusercontent.com/u/10758629?v=4","gravatar_id":"","url":"https://api.github.com/users/Cherishty","html_url":"https://github.com/Cherishty","followers_url":"https://api.github.com/users/Cherishty/followers","following_url":"https://api.github.com/users/Cherishty/following{/other_user}","gists_url":"https://api.github.com/users/Cherishty/gists{/gist_id}","starred_url":"https://api.github.com/users/Cherishty/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Cherishty/subscriptions","organizations_url":"https://api.github.com/users/Cherishty/orgs","repos_url":"https://api.github.com/users/Cherishty/repos","events_url":"https://api.github.com/users/Cherishty/events{/privacy}","received_events_url":"https://api.github.com/users/Cherishty/received_events","type":"User","site_admin":false},"labels":[{"id":105146071,"node_id":"MDU6TGFiZWwxMDUxNDYwNzE=","url":"https://api.github.com/repos/kubernetes/kubernetes/labels/kind/bug","name":"kind/bug","color":"e11d21","default":false},{"id":173493665,"node_id":"MDU6TGFiZWwxNzM0OTM2NjU=","url":"https://api.github.com/repos/kubernetes/kubernetes/labels/sig/node","name":"sig/node","color":"d2b48c","default":false},{"id":125550211,"node_id":"MDU6TGFiZWwxMjU1NTAyMTE=","url":"https://api.github.com/repos/kubernetes/kubernetes/labels/sig/scheduling","name":"sig/scheduling","color":"d2b48c","default":false}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":4,"created_at":"2018-09-14T11:04:32Z","updated_at":"2018-11-07T10:58:39Z","closed_at":null,"author_association":"NONE","body":"<!-- This form is for bug reports and feature requests ONLY!\r\n\r\nIf you're looking for help check [Stack Overflow](https://stackoverflow.com/questions/tagged/kubernetes) and the [troubleshooting guide](https://kubernetes.io/docs/tasks/debug-application-cluster/troubleshooting/).\r\n\r\nIf the matter is security related, please disclose it privately via https://kubernetes.io/security/.\r\n-->\r\n\r\n**Is this a BUG REPORT or FEATURE REQUEST?**:\r\nBUG \r\n\r\n/kind bug\r\n\r\n\r\n**What happened**:\r\nWhen I start a simple nginx pod by kubectl create, k8s always spend _10 second_ to \"Created\" a container after \"SuccessfulMountVolume\", how can it be **SO** slow ? What happen during this period?\r\n**What you expected to happen**:\r\nStart a pod in 5 second after mounted successfully\r\n**How to reproduce it (as minimally and precisely as possible)**:\r\nkubectl create -f nginx.yaml (a quite simple pod with nginx)\r\nkubectl describe pods nginx\r\n\r\n**Anything else we need to know?**:\r\nThis issue can be easily repro on centos 7 + kubelet 1.9.5/1.10.x + docker 1.12/1.13 \r\nHowever on **docker 18.06** it only spends _1-2 second_ to start a pod ! **unbelievable !**\r\n**Environment**:\r\n- Kubernetes version (use `kubectl version`):\r\n1.9.5\r\n- Cloud provider or hardware configuration:\r\n- OS (e.g. from /etc/os-release):\r\nCentOS 7.3\r\n- Kernel (e.g. `uname -a`):\r\nLinux stcvl-115 3.10.0-862.9.1.el7.x86_64 #1 SMP Mon Jul 16 16:29:36 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux\r\n- Install tools:\r\n- Others:\r\n**docker info:**\r\nServer Version: 1.13.1\r\nStorage Driver: overlay2\r\n Backing Filesystem: xfs\r\n Supports d_type: true\r\n Native Overlay Diff: true\r\nLogging Driver: journald\r\nCgroup Driver: systemd\r\nPlugins:\r\n Volume: local\r\n Network: bridge host macvlan null overlay\r\nSwarm: inactive\r\n**docker version**: \r\nServer:\r\n Version:         1.13.1\r\n API version:     1.26 (minimum version 1.12)\r\n Package version: docker-1.13.1-68.gitdded712.el7.centos.x86_64\r\n Go version:      go1.9.4\r\n Git commit:      dded712/1.13.1\r\n Built:           Tue Jul 17 18:34:48 2018\r\n OS/Arch:         linux/amd64\r\n Experimental:    false\r\n**cat /etc/docker/daemon.json**\r\n{\r\n    \"insecure-registries\": [],\r\n    \"storage-driver\": \"overlay2\",\r\n    \"exec-opts\": [\"native.cgroupdriver=systemd\"],\r\n    \"graph\": \"/var/lib/docker\"\r\n}\r\n\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/kubernetes/kubernetes/issues/comments/436586356","html_url":"https://github.com/kubernetes/kubernetes/issues/68672#issuecomment-436586356","issue_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/68672","id":436586356,"node_id":"MDEyOklzc3VlQ29tbWVudDQzNjU4NjM1Ng==","user":{"login":"Cherishty","id":10758629,"node_id":"MDQ6VXNlcjEwNzU4NjI5","avatar_url":"https://avatars0.githubusercontent.com/u/10758629?v=4","gravatar_id":"","url":"https://api.github.com/users/Cherishty","html_url":"https://github.com/Cherishty","followers_url":"https://api.github.com/users/Cherishty/followers","following_url":"https://api.github.com/users/Cherishty/following{/other_user}","gists_url":"https://api.github.com/users/Cherishty/gists{/gist_id}","starred_url":"https://api.github.com/users/Cherishty/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Cherishty/subscriptions","organizations_url":"https://api.github.com/users/Cherishty/orgs","repos_url":"https://api.github.com/users/Cherishty/repos","events_url":"https://api.github.com/users/Cherishty/events{/privacy}","received_events_url":"https://api.github.com/users/Cherishty/received_events","type":"User","site_admin":false},"created_at":"2018-11-07T10:58:39Z","updated_at":"2018-11-07T10:58:39Z","author_association":"NONE","body":"@k82cn  \r\nfinally we replace the network plugin from flannel to weave, and start a pod only spends **2** second \r\n\r\nThanks for your assistance!"}}
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