{"action":"opened","issue":{"url":"https://api.github.com/repos/clustervision/trinity/issues/260","labels_url":"https://api.github.com/repos/clustervision/trinity/issues/260/labels{/name}","comments_url":"https://api.github.com/repos/clustervision/trinity/issues/260/comments","events_url":"https://api.github.com/repos/clustervision/trinity/issues/260/events","html_url":"https://github.com/clustervision/trinity/issues/260","id":79410875,"number":260,"title":"controller: needs to have a reliable NTP source configured","user":{"login":"linuxstudio","id":7702698,"avatar_url":"https://avatars.githubusercontent.com/u/7702698?v=3","gravatar_id":"","url":"https://api.github.com/users/linuxstudio","html_url":"https://github.com/linuxstudio","followers_url":"https://api.github.com/users/linuxstudio/followers","following_url":"https://api.github.com/users/linuxstudio/following{/other_user}","gists_url":"https://api.github.com/users/linuxstudio/gists{/gist_id}","starred_url":"https://api.github.com/users/linuxstudio/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/linuxstudio/subscriptions","organizations_url":"https://api.github.com/users/linuxstudio/orgs","repos_url":"https://api.github.com/users/linuxstudio/repos","events_url":"https://api.github.com/users/linuxstudio/events{/privacy}","received_events_url":"https://api.github.com/users/linuxstudio/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-05-22T11:12:13Z","updated_at":"2015-05-22T11:12:13Z","closed_at":null,"body":"By default the controller has NTP activated and pointing to the DHCP server from which got it's external IP address (in this case the master, from which was installed):\r\n    [root@controller ~]# cat /etc/ntp.conf \r\n    driftfile /var/lib/ntp/drift\r\n    disable auth\r\n    restrict 127.0.0.1\r\n    server  127.127.1.0\r\n    fudge   127.127.1.0 stratum 10\r\n    server 192.168.1.254   # added by /sbin/dhclient-script\r\n\r\nWe should make sure that `/etc/ntp.conf` contains a reliable ntp source, like `pool.ntp.org`. \r\n\r\nWe should also make sure that the ntp.service is active and running. \r\nThis is e.g. not the case in Exeter:\r\n\r\n    [root@controller ~]# systemctl status ntpd.service\r\n    ntpd.service - Network Time Service\r\n       Loaded: loaded (/usr/lib/systemd/system/ntpd.service; disabled)\r\n       Active: inactive (dead)\r\n\r\neven if the `/etc/ntp.conf` is configured correctly (centos default):\r\n\r\n    [root@controller ~]# cat /etc/ntp.conf | grep -e ^server\r\n    server 0.centos.pool.ntp.org iburst\r\n    server 1.centos.pool.ntp.org iburst\r\n    server 2.centos.pool.ntp.org iburst\r\n    server 3.centos.pool.ntp.org iburst"}}