{"action":"created","issue":{"url":"https://api.github.com/repos/docker/docker/issues/21792","repository_url":"https://api.github.com/repos/docker/docker","labels_url":"https://api.github.com/repos/docker/docker/issues/21792/labels{/name}","comments_url":"https://api.github.com/repos/docker/docker/issues/21792/comments","events_url":"https://api.github.com/repos/docker/docker/issues/21792/events","html_url":"https://github.com/docker/docker/issues/21792","id":146232398,"number":21792,"title":"Alpine dns slow","user":{"login":"chuangbo","id":179978,"avatar_url":"https://avatars.githubusercontent.com/u/179978?v=3","gravatar_id":"","url":"https://api.github.com/users/chuangbo","html_url":"https://github.com/chuangbo","followers_url":"https://api.github.com/users/chuangbo/followers","following_url":"https://api.github.com/users/chuangbo/following{/other_user}","gists_url":"https://api.github.com/users/chuangbo/gists{/gist_id}","starred_url":"https://api.github.com/users/chuangbo/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/chuangbo/subscriptions","organizations_url":"https://api.github.com/users/chuangbo/orgs","repos_url":"https://api.github.com/users/chuangbo/repos","events_url":"https://api.github.com/users/chuangbo/events{/privacy}","received_events_url":"https://api.github.com/users/chuangbo/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2016-04-06T08:29:18Z","updated_at":"2016-04-06T08:31:43Z","closed_at":null,"body":"<!--\r\nIf you are reporting a new issue, make sure that we do not have any duplicates\r\nalready open. You can ensure this by searching the issue list for this\r\nrepository. If there is a duplicate, please close your issue and add a comment\r\nto the existing issue instead.\r\n\r\nIf you suspect your issue is a bug, please edit your issue description to\r\ninclude the BUG REPORT INFORMATION shown below. If you fail to provide this\r\ninformation within 7 days, we cannot debug your issue and will close it. We\r\nwill, however, reopen it if you later provide the information.\r\n\r\nFor more information about reporting issues, see\r\nhttps://github.com/docker/docker/blob/master/CONTRIBUTING.md#reporting-other-issues\r\n\r\n---------------------------------------------------\r\nBUG REPORT INFORMATION\r\n---------------------------------------------------\r\nUse the commands below to provide key information from your environment:\r\nYou do NOT have to include this information if this is a FEATURE REQUEST\r\n-->\r\n\r\n**Output of `docker version`:**\r\n\r\n```\r\nClient:\r\n Version:      1.10.3\r\n API version:  1.22\r\n Go version:   go1.6\r\n Git commit:   20f81dd\r\n Built:        Sat Mar 12 04:07:44 UTC 2016\r\n OS/Arch:      darwin/amd64\r\n\r\nServer:\r\n Version:      1.10.3\r\n API version:  1.22\r\n Go version:   go1.5.3\r\n Git commit:   20f81dd\r\n Built:        Thu Mar 10 21:49:11 2016\r\n OS/Arch:      linux/amd64\r\n```\r\n\r\n\r\n**Output of `docker info`:**\r\n\r\n```\r\nContainers: 12\r\n Running: 10\r\n Paused: 0\r\n Stopped: 2\r\nImages: 38\r\nServer Version: 1.10.3\r\nStorage Driver: aufs\r\n Root Dir: /mnt/sda1/var/lib/docker/aufs\r\n Backing Filesystem: extfs\r\n Dirs: 169\r\n Dirperm1 Supported: true\r\nExecution Driver: native-0.2\r\nLogging Driver: json-file\r\nPlugins:\r\n Volume: local\r\n Network: null host bridge\r\nKernel Version: 4.1.19-boot2docker\r\nOperating System: Boot2Docker 1.10.3 (TCL 6.4.1); master : 625117e - Thu Mar 10 22:09:02 UTC 2016\r\nOSType: linux\r\nArchitecture: x86_64\r\nCPUs: 8\r\nTotal Memory: 1.955 GiB\r\nName: dinghy\r\nID: LU2W:RXRL:2HMG:E7RW:4L77:7MGO:O3XO:ORDH:QYY2:2WLV:GLZF:HKZ5\r\nDebug mode (server): true\r\n File Descriptors: 115\r\n Goroutines: 186\r\n System Time: 2016-04-06T08:15:48.217666532Z\r\n EventsListeners: 1\r\n Init SHA1:\r\n Init Path: /usr/local/bin/docker\r\n Docker Root Dir: /mnt/sda1/var/lib/docker\r\nLabels:\r\n provider=parallels\r\n```\r\n\r\n**Additional environment details (AWS, VirtualBox, physical, etc.):**\r\n\r\ndocker-machine, parallels, alpine:3.3\r\n\r\n**Steps to reproduce the issue:**\r\n1. Create network `docker network create alpine_test`\r\n2. Start node1 `docker run -it --rm --net alpine_test --name node1 alpine:3.3 sh`\r\n3. Start node2 `docker run -it --rm --net alpine_test --name node2 alpine:3.3 sh`\r\n4. Ping node1 from node2 `ping node1`\r\n\r\n**Describe the results you received:**\r\nping delays about 3s to get the ip of node1.\r\n\r\n**Describe the results you expected:**\r\nping should get the ip of host `node1` instantly.\r\n\r\n**Additional information you deem important (e.g. issue happens only occasionally):**\r\nIssue happens most of time but not every time. And it's not just about ping, php method like `fsockopen('redis', 6397)` also as slow as ping, and at the same time `fsockopen('IP_ADDR', 6397)` can instantly return.\r\n"},"comment":{"url":"https://api.github.com/repos/docker/docker/issues/comments/206217208","html_url":"https://github.com/docker/docker/issues/21792#issuecomment-206217208","issue_url":"https://api.github.com/repos/docker/docker/issues/21792","id":206217208,"user":{"login":"chuangbo","id":179978,"avatar_url":"https://avatars.githubusercontent.com/u/179978?v=3","gravatar_id":"","url":"https://api.github.com/users/chuangbo","html_url":"https://github.com/chuangbo","followers_url":"https://api.github.com/users/chuangbo/followers","following_url":"https://api.github.com/users/chuangbo/following{/other_user}","gists_url":"https://api.github.com/users/chuangbo/gists{/gist_id}","starred_url":"https://api.github.com/users/chuangbo/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/chuangbo/subscriptions","organizations_url":"https://api.github.com/users/chuangbo/orgs","repos_url":"https://api.github.com/users/chuangbo/repos","events_url":"https://api.github.com/users/chuangbo/events{/privacy}","received_events_url":"https://api.github.com/users/chuangbo/received_events","type":"User","site_admin":false},"created_at":"2016-04-06T08:31:43Z","updated_at":"2016-04-06T08:31:43Z","body":"Dupcated https://github.com/gliderlabs/docker-alpine/issues/153"}}