Ambari UI display datanode status as Stopped

[#1]

Hi

I installed HDP with 1 Ambari server and 2 nodes. After all VM restart I restarted ambari-server and ambari-agent (each nodes)

I logged to Ambari UI but I have a status "datanodes 0/2 started"

Thanks for your help

[#2]

Hi

Some more info ...

ambari-server IP : 192.168.0.7 / ambari-node-1 : 192.168.0.3 / ambari-node-1 : 192.168.0.4

netstat -nputw on ambari-server

tcp6       0      0 192.168.0.7:8441        192.168.0.3:53747       ESTABLISHED 1593/java
....
tcp6       0      0 192.168.0.7:8441        192.168.0.4:48140       ESTABLISHED 1593/java

So coonection seems established beetween server and 2 agents

Picture of my amabari UI :

Thanks for your Help

[#3 · Accepted solution]

Hi

Issue resolved. I share the solution ...

The pb was due to missconfiguration on datanode /etc/hosts after reboot. node2 cannot connect to node1 via FQDN

It's an important point (not clear in the doc). All nodes ambari server and data must be able to connect each other

BR

Maxime