{"action":"closed","issue":{"url":"https://api.github.com/repos/GoogleCloudPlatform/kubernetes/issues/3611","labels_url":"https://api.github.com/repos/GoogleCloudPlatform/kubernetes/issues/3611/labels{/name}","comments_url":"https://api.github.com/repos/GoogleCloudPlatform/kubernetes/issues/3611/comments","events_url":"https://api.github.com/repos/GoogleCloudPlatform/kubernetes/issues/3611/events","html_url":"https://github.com/GoogleCloudPlatform/kubernetes/issues/3611","id":54801940,"number":3611,"title":"kubelet locks devicemapper (preventing docker pull from cli)","user":{"login":"markllama","id":217372,"avatar_url":"https://avatars.githubusercontent.com/u/217372?v=3","gravatar_id":"","url":"https://api.github.com/users/markllama","html_url":"https://github.com/markllama","followers_url":"https://api.github.com/users/markllama/followers","following_url":"https://api.github.com/users/markllama/following{/other_user}","gists_url":"https://api.github.com/users/markllama/gists{/gist_id}","starred_url":"https://api.github.com/users/markllama/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/markllama/subscriptions","organizations_url":"https://api.github.com/users/markllama/orgs","repos_url":"https://api.github.com/users/markllama/repos","events_url":"https://api.github.com/users/markllama/events{/privacy}","received_events_url":"https://api.github.com/users/markllama/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/GoogleCloudPlatform/kubernetes/labels/status%2Fclosed%2Fduplicate","name":"status/closed/duplicate","color":"cccccc"}],"state":"closed","locked":false,"assignee":{"login":"dchen1107","id":7740897,"avatar_url":"https://avatars.githubusercontent.com/u/7740897?v=3","gravatar_id":"","url":"https://api.github.com/users/dchen1107","html_url":"https://github.com/dchen1107","followers_url":"https://api.github.com/users/dchen1107/followers","following_url":"https://api.github.com/users/dchen1107/following{/other_user}","gists_url":"https://api.github.com/users/dchen1107/gists{/gist_id}","starred_url":"https://api.github.com/users/dchen1107/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dchen1107/subscriptions","organizations_url":"https://api.github.com/users/dchen1107/orgs","repos_url":"https://api.github.com/users/dchen1107/repos","events_url":"https://api.github.com/users/dchen1107/events{/privacy}","received_events_url":"https://api.github.com/users/dchen1107/received_events","type":"User","site_admin":false},"milestone":null,"comments":8,"created_at":"2015-01-19T19:19:01Z","updated_at":"2015-01-20T19:07:57Z","closed_at":"2015-01-20T19:07:57Z","body":"The kubelet process on a minion appears to be locking a resource which prevents a user logged onto the minion from sucessfully pulling or running a container outside kubernetes.\r\n\r\nI found this first when pods were failing to start, remaining in the \"waiting: image not available on minion\" state.  I attempted to pull an image manually and docker failed with this message:\r\n\r\n    6cece30db4f9: Error pulling image (20) from fedora, Driver devicemapper failed to get image parent\r\n    782cf93a8f16d3016dae352188cd5cfedb6a15c37d4dbd704399f02d1bb89dab: Unknown device\r\n    782cf93a8f16d3016dae352188cd5cfedb6a15c37d4dbd704399f02d1bb82015/01/19 15:26:37 Error\r\n    pulling image (20) from fedora, Driver devicemapper failed to get image parent\r\n    782cf93a8f16d3016dae352188cd5cfedb6a15c37d4dbd704399f02d1bb89dab: Unknown device\r\n    782cf93a8f16d3016dae352188cd5cfedb6a15c37d4dbd704399f02d1bb89dab\r\n\r\nRecent retests indicate the pods are created correctly but CLI attempts to pull images fail as indicated.  Stopping the kubelet process allows docker pull to complete successfully.\r\n\r\nKubelet operation should not prevent other users from performing allowed docker operations."}}