[AMBARI-17118] Incorrect formated external url in ranger configuration - causes Namenode startup failure

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.1.0
• Fix Version/s: 2.4.0
• Component/s: ambari-server
• Assignee: Mugdha Varadkar
• Reporter: Mugdha Varadkar
• Created: 08/Jun/16 13:31
• Updated: 15/Jun/16 06:41
• Resolved: 15/Jun/16 06:41

Description

STR:
1. install ambari and HDP with HDFS,YARN,HIVE
2. install ranger and configure External URL https://c6401.ambari.apache.org:6182/ ( means slash at the end of the URL which is allowed without any problem and installation is done successfully)
3. enable ranger plugin in hdfs config and restart it

Result: NN startup fails and even after failure , error message in stack trace is confusing

ERROR:
======
File "/usr/lib/python2.6/site-packages/resource_management/libraries/functions/ranger_functions.py", line 108, in create_ranger_repository
raise Fail('Ambari admin username and password are blank ')
resource_management.core.exceptions.Fail: Ambari admin username and password are blank

but actual reason is a slash at the end of the External URL,

it fails the following point in usr/lib/python2.6/site-packages/resource_management/libraries/functions/ranger_functions.py:

result = urllib2.urlopen(request)