Hi I made some check 1) ambari server is up and running 2) ambari agent are up and running on the 2 datanode (I checked the pid) 3) ambari agent can connect to ambari server (/etc/ambari-agent/conf/ambari-agent.ini is OK) 4) ambari server can connect on 2 datanode with ssh-key ambari-agent(node-1).log : On the 2 nodes connection to ambari server seems OK. Error on service connection => the node try to connect himself on port 8042
INFO 2016-12-14 18:47:19,360 PingPortListener.py:50 - Ping port listener started on port: 8670INFO 2016-12-14 18:47:19,360 main.py:349 - Connecting to Ambari server at https://ambari.novalocal:8440 (192.168.0.7)INFO 2016-12-14 18:47:19,360 NetUtil.py:62 - Connecting to https://ambari.novalocal:8440/caINFO 2016-12-14 18:47:19,469 main.py:359 - Connected to Ambari server ambari.novalocal ERROR 2016-12-14 19:00:19,561 script_alert.py:119 - [Alert][yarn_nodemanager_health] Failed with result CRITICAL: ['Connection failed to http://hdp-node1.mycluster.com:8042/ws/v1/node/info (Traceback (most recent call last):\n File "/var/lib/ambari-agent/cache/common-services/YARN/2.1.0.2.0/package/alerts/alert_nodemanager_health.py", line 171, in execute\n url_response = urllib2.urlopen(query, timeout=connection_timeout)\n File "/usr/lib/python2.7/urllib2.py", line 127, in urlopen\n return _opener.open(url, data, timeout)\n File "/usr/lib/python2.7/urllib2.py", line 404, in open\n response = self._open(req, data)\n File "/usr/lib/python2.7/urllib2.py", line 422, in _open\n \'_open\', req)\n File "/usr/lib/python2.7/urllib2.py", line 382, in _call_chain\n result = func(*args)\n File "/usr/lib/python2.7/urllib2.py", line 1214, in http_open\n return self.do_open(httplib.HTTPConnection, req)\n File "/usr/lib/python2.7/urllib2.py", line 1184, in do_open\n raise URLError(err)\nURLError: <urlopen error [Errno 111] Connection refused>\n)'] Maxime
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