[AMBARI-23610] Enable NameNode HA fails after Ambari Upgrade due to AttributeError

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.7.0
• Fix Version/s: 2.7.0
• Component/s: ambari-agent
• Labels: pull-request-available
• Assignee: Attila Doroszlai
• Reporter: Attila Doroszlai
• Created: 18/Apr/18 14:21
• Updated: 18/Apr/18 18:32
• Resolved: 18/Apr/18 18:32

Description

STR

1. Install a Ambari Cluster with Ambari 2.6.1
2. Upgrade to Ambari 2.7
3. Try to enable NameNode HA

Result:

Traceback (most recent call last):
  File "/var/lib/ambari-agent/cache/common-services/HDFS/2.1.0.2.0/package/scripts/journalnode.py", line 143, in <module>
    JournalNode().execute()
  File "/usr/lib/ambari-agent/lib/resource_management/libraries/script/script.py", line 353, in execute
    method(env)
  File "/var/lib/ambari-agent/cache/common-services/HDFS/2.1.0.2.0/package/scripts/journalnode.py", line 39, in install
    import params
  File "/var/lib/ambari-agent/cache/common-services/HDFS/2.1.0.2.0/package/scripts/params.py", line 25, in <module>
    from params_linux import *
  File "/var/lib/ambari-agent/cache/common-services/HDFS/2.1.0.2.0/package/scripts/params_linux.py", line 330, in <module>
    if hostname.lower() in nn_host.lower() or public_hostname.lower() in nn_host.lower():
AttributeError: 'NoneType' object has no attribute 'lower'

Problem:

command*json

"public_hostname": null

Issue Links

• links to: GitHub Pull Request #1040