I have installed a brand new cluster and all the services are up and running. But Ambari shows alert for all Web UIs. Here are few example :
DataNode web UI
Connection failed to http://node1.dev.XXXXXXXX.io:50075 (timed out)
Resource Manager Web UI
Connection failed to http://api1.dev.XXXXXXX.io:8088 (timed out)
Anybody has any idea on which logs Do I need to check to get more details..?