{"action":"created","issue":{"url":"https://api.github.com/repos/kubernetes/kubernetes/issues/84794","repository_url":"https://api.github.com/repos/kubernetes/kubernetes","labels_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/84794/labels{/name}","comments_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/84794/comments","events_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/84794/events","html_url":"https://github.com/kubernetes/kubernetes/issues/84794","id":517752488,"node_id":"MDU6SXNzdWU1MTc3NTI0ODg=","number":84794,"title":"HA Cluster v1.16.0 : coredns behaves unexpectedly","user":{"login":"Davidrjx","id":4284791,"node_id":"MDQ6VXNlcjQyODQ3OTE=","avatar_url":"https://avatars0.githubusercontent.com/u/4284791?v=4","gravatar_id":"","url":"https://api.github.com/users/Davidrjx","html_url":"https://github.com/Davidrjx","followers_url":"https://api.github.com/users/Davidrjx/followers","following_url":"https://api.github.com/users/Davidrjx/following{/other_user}","gists_url":"https://api.github.com/users/Davidrjx/gists{/gist_id}","starred_url":"https://api.github.com/users/Davidrjx/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Davidrjx/subscriptions","organizations_url":"https://api.github.com/users/Davidrjx/orgs","repos_url":"https://api.github.com/users/Davidrjx/repos","events_url":"https://api.github.com/users/Davidrjx/events{/privacy}","received_events_url":"https://api.github.com/users/Davidrjx/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,"description":"Categorizes issue or PR as related to a bug."},{"id":116712108,"node_id":"MDU6TGFiZWwxMTY3MTIxMDg=","url":"https://api.github.com/repos/kubernetes/kubernetes/labels/sig/network","name":"sig/network","color":"d2b48c","default":false,"description":"Categorizes an issue or PR as relevant to sig-network."},{"id":862108765,"node_id":"MDU6TGFiZWw4NjIxMDg3NjU=","url":"https://api.github.com/repos/kubernetes/kubernetes/labels/triage/unresolved","name":"triage/unresolved","color":"d455d0","default":false,"description":"Indicates an issue that can not or will not be resolved."}],"state":"open","locked":false,"assignee":{"login":"chrisohaver","id":14335541,"node_id":"MDQ6VXNlcjE0MzM1NTQx","avatar_url":"https://avatars2.githubusercontent.com/u/14335541?v=4","gravatar_id":"","url":"https://api.github.com/users/chrisohaver","html_url":"https://github.com/chrisohaver","followers_url":"https://api.github.com/users/chrisohaver/followers","following_url":"https://api.github.com/users/chrisohaver/following{/other_user}","gists_url":"https://api.github.com/users/chrisohaver/gists{/gist_id}","starred_url":"https://api.github.com/users/chrisohaver/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/chrisohaver/subscriptions","organizations_url":"https://api.github.com/users/chrisohaver/orgs","repos_url":"https://api.github.com/users/chrisohaver/repos","events_url":"https://api.github.com/users/chrisohaver/events{/privacy}","received_events_url":"https://api.github.com/users/chrisohaver/received_events","type":"User","site_admin":false},"assignees":[{"login":"chrisohaver","id":14335541,"node_id":"MDQ6VXNlcjE0MzM1NTQx","avatar_url":"https://avatars2.githubusercontent.com/u/14335541?v=4","gravatar_id":"","url":"https://api.github.com/users/chrisohaver","html_url":"https://github.com/chrisohaver","followers_url":"https://api.github.com/users/chrisohaver/followers","following_url":"https://api.github.com/users/chrisohaver/following{/other_user}","gists_url":"https://api.github.com/users/chrisohaver/gists{/gist_id}","starred_url":"https://api.github.com/users/chrisohaver/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/chrisohaver/subscriptions","organizations_url":"https://api.github.com/users/chrisohaver/orgs","repos_url":"https://api.github.com/users/chrisohaver/repos","events_url":"https://api.github.com/users/chrisohaver/events{/privacy}","received_events_url":"https://api.github.com/users/chrisohaver/received_events","type":"User","site_admin":false}],"milestone":null,"comments":12,"created_at":"2019-11-05T12:48:28Z","updated_at":"2019-11-20T01:42:58Z","closed_at":null,"author_association":"NONE","body":"**What happened**:\r\ncoredns can not work as domain name resolution.\r\n**What you expected to happen**:\r\ncoredns works normally,  looking up domain name for particular ip address.\r\n**How to reproduce it (as minimally and precisely as possible)**:\r\nkubeadm makes a v1.16.0 HA cluster with three controlplane nodes ,and nginx as load balancer. \r\n**Anything else we need to know?**:\r\nlike baidu.com, nslookup failed but ping responding ip ok.\r\n**Environment**:\r\n- Kubernetes version (use `kubectl version`):\r\nClient Version: version.Info{Major:\"1\", Minor:\"16\", GitVersion:\"v1.16.0\", GitCommit:\"2bd9643cee5b3b3a5ecbd3af49d09018f0773c77\", GitTreeState:\"clean\", BuildDate:\"2019-09-18T14:36:53Z\", GoVersion:\"go1.12.9\", Compiler:\"gc\", Platform:\"linux/amd64\"}\r\nServer Version: version.Info{Major:\"1\", Minor:\"16\", GitVersion:\"v1.16.0\", GitCommit:\"2bd9643cee5b3b3a5ecbd3af49d09018f0773c77\", GitTreeState:\"clean\", BuildDate:\"2019-09-18T14:27:17Z\", GoVersion:\"go1.12.9\", Compiler:\"gc\", Platform:\"linux/amd64\"}\r\n- Cloud provider or hardware configuration:\r\nbare metal\r\n- OS (e.g: `cat /etc/os-release`):\r\nPRETTY_NAME=\"Debian GNU/Linux 9 (stretch)\"\r\nNAME=\"Debian GNU/Linux\"\r\nVERSION_ID=\"9\"\r\nVERSION=\"9 (stretch)\"\r\nID=debian\r\nHOME_URL=\"https://www.debian.org/\"\r\nSUPPORT_URL=\"https://www.debian.org/support\"\r\nBUG_REPORT_URL=\"https://bugs.debian.org/\"\r\n- Kernel (e.g. `uname -a`):\r\nLinux fuxi-dl-*1 4.9.0-9-amd64 #1 SMP Debian 4.9.168-1 (2019-04-12) x86_64 GNU/Linux\r\n- Install tools:\r\nkubeadm\r\n- Network plugin and version (if this is a network-related bug):\r\ncalico v3.9.1\r\n- Others:\r\netcd v3.3.10\r\ndocker-ce 18.06.2-ce, build 6d37f41\r\n\r\n/help"},"comment":{"url":"https://api.github.com/repos/kubernetes/kubernetes/issues/comments/555796694","html_url":"https://github.com/kubernetes/kubernetes/issues/84794#issuecomment-555796694","issue_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/84794","id":555796694,"node_id":"MDEyOklzc3VlQ29tbWVudDU1NTc5NjY5NA==","user":{"login":"Davidrjx","id":4284791,"node_id":"MDQ6VXNlcjQyODQ3OTE=","avatar_url":"https://avatars0.githubusercontent.com/u/4284791?v=4","gravatar_id":"","url":"https://api.github.com/users/Davidrjx","html_url":"https://github.com/Davidrjx","followers_url":"https://api.github.com/users/Davidrjx/followers","following_url":"https://api.github.com/users/Davidrjx/following{/other_user}","gists_url":"https://api.github.com/users/Davidrjx/gists{/gist_id}","starred_url":"https://api.github.com/users/Davidrjx/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Davidrjx/subscriptions","organizations_url":"https://api.github.com/users/Davidrjx/orgs","repos_url":"https://api.github.com/users/Davidrjx/repos","events_url":"https://api.github.com/users/Davidrjx/events{/privacy}","received_events_url":"https://api.github.com/users/Davidrjx/received_events","type":"User","site_admin":false},"created_at":"2019-11-20T01:42:58Z","updated_at":"2019-11-20T01:42:58Z","author_association":"NONE","body":"@chrisohaver sorry, what i was looking up was kubernetes by nslookup kubernetes, result was like '...no server reachable..'"}}
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