{"action":"opened","number":1528,"pull_request":{"url":"https://api.github.com/repos/flynn/flynn/pulls/1528","id":35283554,"html_url":"https://github.com/flynn/flynn/pull/1528","diff_url":"https://github.com/flynn/flynn/pull/1528.diff","patch_url":"https://github.com/flynn/flynn/pull/1528.patch","issue_url":"https://api.github.com/repos/flynn/flynn/issues/1528","number":1528,"state":"open","locked":false,"title":"host: Set the zpool backing file size to 70% of root device","user":{"login":"lmars","id":488515,"avatar_url":"https://avatars.githubusercontent.com/u/488515?v=3","gravatar_id":"","url":"https://api.github.com/users/lmars","html_url":"https://github.com/lmars","followers_url":"https://api.github.com/users/lmars/followers","following_url":"https://api.github.com/users/lmars/following{/other_user}","gists_url":"https://api.github.com/users/lmars/gists{/gist_id}","starred_url":"https://api.github.com/users/lmars/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/lmars/subscriptions","organizations_url":"https://api.github.com/users/lmars/orgs","repos_url":"https://api.github.com/users/lmars/repos","events_url":"https://api.github.com/users/lmars/events{/privacy}","received_events_url":"https://api.github.com/users/lmars/received_events","type":"User","site_admin":false},"body":"This is to avoid the zpool consuming more space than is available on the root device, leading to `ENOSPC` errors and thus breaking many things.\r\n\r\nTested on Ubuntu 14.04 in VirtualBox, EC2 and DO. For example on EC2:\r\n\r\n```\r\n$ df -h\r\nFilesystem                                      Size  Used Avail Use% Mounted on\r\n/dev/xvda1                                       50G   12G   36G  26% /\r\n...\r\nflynn-default/bd884404eec54c5e98b0aa21092a70ca   34G  640K   34G   1% /var/lib/flynn/volumes/zfs/mnt/bd884404eec54c5e98b0aa21092a70ca\r\nflynn-default/38099f2b423d4b8796a96b4958a5251c   34G   60M   34G   1% /var/lib/flynn/volumes/zfs/mnt/38099f2b423d4b8796a96b4958a5251c\r\nflynn-default/7d2b3431467046f2bbc9e57f0b4c0523   34G     0   34G   0% /var/lib/flynn/volumes/zfs/mnt/7d2b3431467046f2bbc9e57f0b4c0523\r\n\r\n$ sudo zpool list\r\nNAME            SIZE  ALLOC   FREE  EXPANDSZ   FRAG    CAP  DEDUP  HEALTH  ALTROOT\r\nflynn-default  34.2G  61.2M  34.2G         -     0%     0%  1.00x  ONLINE  -\r\n```","created_at":"2015-05-13T00:10:05Z","updated_at":"2015-05-13T00:10:05Z","closed_at":null,"merged_at":null,"merge_commit_sha":null,"assignee":null,"milestone":null,"commits_url":"https://api.github.com/repos/flynn/flynn/pulls/1528/commits","review_comments_url":"https://api.github.com/repos/flynn/flynn/pulls/1528/comments","review_comment_url":"https://api.github.com/repos/flynn/flynn/pulls/comments{/number}","comments_url":"https://api.github.com/repos/flynn/flynn/issues/1528/comments","statuses_url":"https://api.github.com/repos/flynn/flynn/statuses/bd06f6e4b29c8c6b5ff052659187d5cdcd6c2b3b","head":{"label":"flynn:zpool-file-size","ref":"zpool-file-size","sha":"bd06f6e4b29c8c6b5ff052659187d5cdcd6c2b3b","user":{"login":"flynn","id":4973613,"avatar_url":"https://avatars.githubusercontent.com/u/4973613?v=3","gravatar_id":"","url":"https://api.github.com/users/flynn","html_url":"https://github.com/flynn","followers_url":"https://api.github.com/users/flynn/followers","following_url":"https://api.github.com/users/flynn/following{/other_user}","gists_url":"https://api.github.com/users/flynn/gists{/gist_id}","starred_url":"https://api.github.com/users/flynn/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/flynn/subscriptions","organizations_url":"https://api.github.com/users/flynn/orgs","repos_url":"https://api.github.com/users/flynn/repos","events_url":"https://api.github.com/users/flynn/events{/privacy}","received_events_url":"https://api.github.com/users/flynn/received_events","type":"Organization","site_admin":false},"repo":{"id":11290232,"name":"flynn","full_name":"flynn/flynn","owner":{"login":"flynn","id":4973613,"avatar_url":"https://avatars.githubusercontent.com/u/4973613?v=3","gravatar_id":"","url":"https://api.github.com/users/flynn","html_url":"https://github.com/flynn","followers_url":"https://api.github.com/users/flynn/followers","following_url":"https://api.github.com/users/flynn/following{/other_user}","gists_url":"https://api.github.com/users/flynn/gists{/gist_id}","starred_url":"https://api.github.com/users/flynn/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/flynn/subscriptions","organizations_url":"https://api.github.com/users/flynn/orgs","repos_url":"https://api.github.com/users/flynn/repos","events_url":"https://api.github.com/users/flynn/events{/privacy}","received_events_url":"https://api.github.com/users/flynn/received_events","type":"Organization","site_admin":false},"private":false,"html_url":"https://github.com/flynn/flynn","description":"A next generation open source platform as a service (PaaS)","fork":false,"url":"https://api.github.com/repos/flynn/flynn","forks_url":"https://api.github.com/repos/flynn/flynn/forks","keys_url":"https://api.github.com/repos/flynn/flynn/keys{/key_id}","collaborators_url":"https://api.github.com/repos/flynn/flynn/collaborators{/collaborator}","teams_url":"https://api.github.com/repos/flynn/flynn/teams","hooks_url":"https://api.github.com/repos/flynn/flynn/hooks","issue_events_url":"https://api.github.com/repos/flynn/flynn/issues/events{/number}","events_url":"https://api.github.com/repos/flynn/flynn/events","assignees_url":"https://api.github.com/repos/flynn/flynn/assignees{/user}","branches_url":"https://api.github.com/repos/flynn/flynn/branches{/branch}","tags_url":"https://api.github.com/repos/flynn/flynn/tags","blobs_url":"https://api.github.com/repos/flynn/flynn/git/blobs{/sha}","git_tags_url":"https://api.github.com/repos/flynn/flynn/git/tags{/sha}","git_refs_url":"https://api.github.com/repos/flynn/flynn/git/refs{/sha}","trees_url":"https://api.github.com/repos/flynn/flynn/git/trees{/sha}","statuses_url":"https://api.github.com/repos/flynn/flynn/statuses/{sha}","languages_url":"https://api.github.com/repos/flynn/flynn/languages","stargazers_url":"https://api.github.com/repos/flynn/flynn/stargazers","contributors_url":"https://api.github.com/repos/flynn/flynn/contributors","subscribers_url":"https://api.github.com/repos/flynn/flynn/subscribers","subscription_url":"https://api.github.com/repos/flynn/flynn/subscription","commits_url":"https://api.github.com/repos/flynn/flynn/commits{/sha}","git_commits_url":"https://api.github.com/repos/flynn/flynn/git/commits{/sha}","comments_url":"https://api.github.com/repos/flynn/flynn/comments{/number}","issue_comment_url":"https://api.github.com/repos/flynn/flynn/issues/comments{/number}","contents_url":"https://api.github.com/repos/flynn/flynn/contents/{+path}","compare_url":"https://api.github.com/repos/flynn/flynn/compare/{base}...{head}","merges_url":"https://api.github.com/repos/flynn/flynn/merges","archive_url":"https://api.github.com/repos/flynn/flynn/{archive_format}{/ref}","downloads_url":"https://api.github.com/repos/flynn/flynn/downloads","issues_url":"https://api.github.com/repos/flynn/flynn/issues{/number}","pulls_url":"https://api.github.com/repos/flynn/flynn/pulls{/number}","milestones_url":"https://api.github.com/repos/flynn/flynn/milestones{/number}","notifications_url":"https://api.github.com/repos/flynn/flynn/notifications{?since,all,participating}","labels_url":"https://api.github.com/repos/flynn/flynn/labels{/name}","releases_url":"https://api.github.com/repos/flynn/flynn/releases{/id}","created_at":"2013-07-09T18:22:06Z","updated_at":"2015-05-12T16:38:09Z","pushed_at":"2015-05-13T00:03:44Z","git_url":"git://github.com/flynn/flynn.git","ssh_url":"git@github.com:flynn/flynn.git","clone_url":"https://github.com/flynn/flynn.git","svn_url":"https://github.com/flynn/flynn","homepage":"https://flynn.io","size":52768,"stargazers_count":3543,"watchers_count":3543,"language":"Go","has_issues":true,"has_downloads":true,"has_wiki":false,"has_pages":false,"forks_count":249,"mirror_url":null,"open_issues_count":198,"forks":249,"open_issues":198,"watchers":3543,"default_branch":"master"}},"base":{"label":"flynn:master","ref":"master","sha":"1152efeadcf2992d52147aff7ca1e65d7d4b69a7","user":{"login":"flynn","id":4973613,"avatar_url":"https://avatars.githubusercontent.com/u/4973613?v=3","gravatar_id":"","url":"https://api.github.com/users/flynn","html_url":"https://github.com/flynn","followers_url":"https://api.github.com/users/flynn/followers","following_url":"https://api.github.com/users/flynn/following{/other_user}","gists_url":"https://api.github.com/users/flynn/gists{/gist_id}","starred_url":"https://api.github.com/users/flynn/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/flynn/subscriptions","organizations_url":"https://api.github.com/users/flynn/orgs","repos_url":"https://api.github.com/users/flynn/repos","events_url":"https://api.github.com/users/flynn/events{/privacy}","received_events_url":"https://api.github.com/users/flynn/received_events","type":"Organization","site_admin":false},"repo":{"id":11290232,"name":"flynn","full_name":"flynn/flynn","owner":{"login":"flynn","id":4973613,"avatar_url":"https://avatars.githubusercontent.com/u/4973613?v=3","gravatar_id":"","url":"https://api.github.com/users/flynn","html_url":"https://github.com/flynn","followers_url":"https://api.github.com/users/flynn/followers","following_url":"https://api.github.com/users/flynn/following{/other_user}","gists_url":"https://api.github.com/users/flynn/gists{/gist_id}","starred_url":"https://api.github.com/users/flynn/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/flynn/subscriptions","organizations_url":"https://api.github.com/users/flynn/orgs","repos_url":"https://api.github.com/users/flynn/repos","events_url":"https://api.github.com/users/flynn/events{/privacy}","received_events_url":"https://api.github.com/users/flynn/received_events","type":"Organization","site_admin":false},"private":false,"html_url":"https://github.com/flynn/flynn","description":"A next generation open source platform as a service (PaaS)","fork":false,"url":"https://api.github.com/repos/flynn/flynn","forks_url":"https://api.github.com/repos/flynn/flynn/forks","keys_url":"https://api.github.com/repos/flynn/flynn/keys{/key_id}","collaborators_url":"https://api.github.com/repos/flynn/flynn/collaborators{/collaborator}","teams_url":"https://api.github.com/repos/flynn/flynn/teams","hooks_url":"https://api.github.com/repos/flynn/flynn/hooks","issue_events_url":"https://api.github.com/repos/flynn/flynn/issues/events{/number}","events_url":"https://api.github.com/repos/flynn/flynn/events","assignees_url":"https://api.github.com/repos/flynn/flynn/assignees{/user}","branches_url":"https://api.github.com/repos/flynn/flynn/branches{/branch}","tags_url":"https://api.github.com/repos/flynn/flynn/tags","blobs_url":"https://api.github.com/repos/flynn/flynn/git/blobs{/sha}","git_tags_url":"https://api.github.com/repos/flynn/flynn/git/tags{/sha}","git_refs_url":"https://api.github.com/repos/flynn/flynn/git/refs{/sha}","trees_url":"https://api.github.com/repos/flynn/flynn/git/trees{/sha}","statuses_url":"https://api.github.com/repos/flynn/flynn/statuses/{sha}","languages_url":"https://api.github.com/repos/flynn/flynn/languages","stargazers_url":"https://api.github.com/repos/flynn/flynn/stargazers","contributors_url":"https://api.github.com/repos/flynn/flynn/contributors","subscribers_url":"https://api.github.com/repos/flynn/flynn/subscribers","subscription_url":"https://api.github.com/repos/flynn/flynn/subscription","commits_url":"https://api.github.com/repos/flynn/flynn/commits{/sha}","git_commits_url":"https://api.github.com/repos/flynn/flynn/git/commits{/sha}","comments_url":"https://api.github.com/repos/flynn/flynn/comments{/number}","issue_comment_url":"https://api.github.com/repos/flynn/flynn/issues/comments{/number}","contents_url":"https://api.github.com/repos/flynn/flynn/contents/{+path}","compare_url":"https://api.github.com/repos/flynn/flynn/compare/{base}...{head}","merges_url":"https://api.github.com/repos/flynn/flynn/merges","archive_url":"https://api.github.com/repos/flynn/flynn/{archive_format}{/ref}","downloads_url":"https://api.github.com/repos/flynn/flynn/downloads","issues_url":"https://api.github.com/repos/flynn/flynn/issues{/number}","pulls_url":"https://api.github.com/repos/flynn/flynn/pulls{/number}","milestones_url":"https://api.github.com/repos/flynn/flynn/milestones{/number}","notifications_url":"https://api.github.com/repos/flynn/flynn/notifications{?since,all,participating}","labels_url":"https://api.github.com/repos/flynn/flynn/labels{/name}","releases_url":"https://api.github.com/repos/flynn/flynn/releases{/id}","created_at":"2013-07-09T18:22:06Z","updated_at":"2015-05-12T16:38:09Z","pushed_at":"2015-05-13T00:03:44Z","git_url":"git://github.com/flynn/flynn.git","ssh_url":"git@github.com:flynn/flynn.git","clone_url":"https://github.com/flynn/flynn.git","svn_url":"https://github.com/flynn/flynn","homepage":"https://flynn.io","size":52768,"stargazers_count":3543,"watchers_count":3543,"language":"Go","has_issues":true,"has_downloads":true,"has_wiki":false,"has_pages":false,"forks_count":249,"mirror_url":null,"open_issues_count":198,"forks":249,"open_issues":198,"watchers":3543,"default_branch":"master"}},"_links":{"self":{"href":"https://api.github.com/repos/flynn/flynn/pulls/1528"},"html":{"href":"https://github.com/flynn/flynn/pull/1528"},"issue":{"href":"https://api.github.com/repos/flynn/flynn/issues/1528"},"comments":{"href":"https://api.github.com/repos/flynn/flynn/issues/1528/comments"},"review_comments":{"href":"https://api.github.com/repos/flynn/flynn/pulls/1528/comments"},"review_comment":{"href":"https://api.github.com/repos/flynn/flynn/pulls/comments{/number}"},"commits":{"href":"https://api.github.com/repos/flynn/flynn/pulls/1528/commits"},"statuses":{"href":"https://api.github.com/repos/flynn/flynn/statuses/bd06f6e4b29c8c6b5ff052659187d5cdcd6c2b3b"}},"merged":false,"mergeable":null,"mergeable_state":"unknown","merged_by":null,"comments":0,"review_comments":0,"commits":1,"additions":13,"deletions":1,"changed_files":1}}