{"action":"closed","issue":{"url":"https://api.github.com/repos/zfsonlinux/zfs/issues/3776","labels_url":"https://api.github.com/repos/zfsonlinux/zfs/issues/3776/labels{/name}","comments_url":"https://api.github.com/repos/zfsonlinux/zfs/issues/3776/comments","events_url":"https://api.github.com/repos/zfsonlinux/zfs/issues/3776/events","html_url":"https://github.com/zfsonlinux/zfs/issues/3776","id":106409069,"number":3776,"title":"Snapshots mounted over NFS do not unmount","user":{"login":"angstymeat","id":6665497,"avatar_url":"https://avatars.githubusercontent.com/u/6665497?v=3","gravatar_id":"","url":"https://api.github.com/users/angstymeat","html_url":"https://github.com/angstymeat","followers_url":"https://api.github.com/users/angstymeat/followers","following_url":"https://api.github.com/users/angstymeat/following{/other_user}","gists_url":"https://api.github.com/users/angstymeat/gists{/gist_id}","starred_url":"https://api.github.com/users/angstymeat/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/angstymeat/subscriptions","organizations_url":"https://api.github.com/users/angstymeat/orgs","repos_url":"https://api.github.com/users/angstymeat/repos","events_url":"https://api.github.com/users/angstymeat/events{/privacy}","received_events_url":"https://api.github.com/users/angstymeat/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/zfsonlinux/zfs/labels/Bug%20-%20Minor","name":"Bug - Minor","color":"e11d21"},{"url":"https://api.github.com/repos/zfsonlinux/zfs/labels/Documentation","name":"Documentation","color":"0b02e1"}],"state":"closed","locked":false,"assignee":null,"milestone":{"url":"https://api.github.com/repos/zfsonlinux/zfs/milestones/11","html_url":"https://github.com/zfsonlinux/zfs/milestones/0.7.0","labels_url":"https://api.github.com/repos/zfsonlinux/zfs/milestones/11/labels","id":7013,"number":11,"title":"0.7.0","description":"ZFS on Linux v0.7.0 - Memory management\r\n\r\n","creator":{"login":"behlendorf","id":148917,"avatar_url":"https://avatars.githubusercontent.com/u/148917?v=3","gravatar_id":"","url":"https://api.github.com/users/behlendorf","html_url":"https://github.com/behlendorf","followers_url":"https://api.github.com/users/behlendorf/followers","following_url":"https://api.github.com/users/behlendorf/following{/other_user}","gists_url":"https://api.github.com/users/behlendorf/gists{/gist_id}","starred_url":"https://api.github.com/users/behlendorf/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/behlendorf/subscriptions","organizations_url":"https://api.github.com/users/behlendorf/orgs","repos_url":"https://api.github.com/users/behlendorf/repos","events_url":"https://api.github.com/users/behlendorf/events{/privacy}","received_events_url":"https://api.github.com/users/behlendorf/received_events","type":"User","site_admin":false},"open_issues":136,"closed_issues":114,"state":"open","created_at":"2011-05-03T17:38:46Z","updated_at":"2015-09-22T09:08:02Z","due_on":null,"closed_at":null},"comments":3,"created_at":"2015-09-14T19:12:03Z","updated_at":"2015-09-22T09:08:02Z","closed_at":"2015-09-22T09:08:02Z","body":"I installed 0.6.5 on one of our file servers today, and tried out the new ability to look at a snapshot over NFS. That worked fine.\r\n\r\nThe server mounted the snapshots locally and the ycould be read from the remote client, however the server is never unmounting the snapshots. I have autofs set for a 300 second timeout, and this last time I've waited for 45 minutes. The user that mounted the snapshots on the client has been logged out for most of that time. Trying to delete the snapshot failed, too.\r\n\r\nWhen I try to force an unmount I with ```umount -f``` I get a message that the target is busy. Neither ```lsof``` or ```fuser``` show any of these mounts in use.\r\n\r\nUpdate: ```zfs-auto-snapshot``` just completed its hourly run, and the wayward snapshots have been unmounted and renamed. It's looking like destroying them with ```-r``` works, at least if you want to delete a snapshot.\r\n\r\nThe file server is running the 3.11.10-100.fc18.x86_64 kernel with spl & zfs version 0.6.5-1.\r\n"}}