[AMBARI-15597] After enabling SSL for Resource Manager, getting a constant Ambari Alert: Connection failed to https://0.0.0.0:8044/ws/v1/node/info (No JSON object could be decoded)

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.1.2
• Fix Version/s: 2.2.2
• Component/s: ambari-server
• Assignee: Dmitry Lysnichenko
• Reporter: Dmitry Lysnichenko
• Created: 28/Mar/16 10:00
• Updated: 28/Mar/16 17:53
• Resolved: 28/Mar/16 10:33

Description

Enabled SSL for ResourceManager HA.
The following parameter changed in yarn-site.xml

<name>yarn.nodemanager.webapp.https.address</name>
<value>0.0.0.0:8044</value>

After implementing SSL, they started getting the following Ambari Alert from all the nodes.

Connection failed to https://0.0.0.0:8044/ws/v1/node/info (No JSON object could be decoded)

We tested the Python socket.getfqdn() inside the alert_nodemanager_health.py and it worked correctly.

print socket.getfqdn("0.0.0.0")

CAUSE:
We think that Kerberos looks for the yarn.nodemanager.webapp.https.address hostname in yarn-site.xml and because it sees “0.0.0.0” instead of the hostname, it can’t get the keytabs of the host.

Issue Links

• links to: review_request_