[AMBARI-15064] RU/EU can't start if hosts have name in MixedCASE in configs for NameNode, HBASE Master, ResourceManager

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2.0
• Fix Version/s: 2.2.2
• Component/s: ambari-server
• Assignee: Alejandro Fernandez
• Reporter: Alejandro Fernandez
• Created: 16/Feb/16 21:41
• Updated: 19/Feb/16 18:14
• Resolved: 18/Feb/16 19:30

Description

RU/EU tries to resolve the hostnames for NameNode, HBASE Master, and ResourceManager by using MasterHostResolver.java, which queries configs and then JMX.

Ambari DB stores the hostnames in all lowercase, so if the configs or JMX store the hostnames in a different case, then Ambari will throw an exception that the host could not be found.

To fix this, convert all hostnames to lowercase.

Issue Links

• links to: Code Review patch