HiveServer2 won't start after changing Ranger's admin password

[#1]

Hello

HDP 2.3.2

Ambari 2.1.2.1

After changing the admin password of Ranger - both in the ranger UI and in the ambari under Advanced ranger-env the HiveServer2 fails to start. Ranger starts flawlessly - but HiveServer2 (which has Ranger authorization enabled) doesn't. If i disable the Ranger authorization from Hive (switching to none) HiveServer2 will start.

The error in the ambari is:

Traceback (most recent call last):
  File "/var/lib/ambari-agent/cache/common-services/HIVE/0.12.0.2.0/package/scripts/hive_server.py", line 193, in <module>
    HiveServer().execute()
  File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py", line 216, in execute
    method(env)
  File "/var/lib/ambari-agent/cache/common-services/HIVE/0.12.0.2.0/package/scripts/hive_server.py", line 85, in start
    setup_ranger_hive(rolling_upgrade=rolling_restart)
  File "/var/lib/ambari-agent/cache/common-services/HIVE/0.12.0.2.0/package/scripts/setup_ranger_hive.py", line 50, in setup_ranger_hive
    hdp_version_override = hdp_version)                 
  File "/usr/lib/python2.6/site-packages/resource_management/libraries/functions/setup_ranger_plugin_xml.py", line 78, in setup_ranger_plugin
    policy_user)
  File "/usr/lib/python2.6/site-packages/resource_management/libraries/functions/ranger_functions.py", line 92, in create_ranger_repository
    repo = self.get_repository_by_name_urllib2(repo_name, component, 'true', ambari_username_password_for_ranger)
  File "/usr/lib/python2.6/site-packages/resource_management/libraries/functions/ranger_functions.py", line 57, in get_repository_by_name_urllib2
    response = json.loads(result.read())
  File "/usr/lib/python2.6/site-packages/ambari_simplejson/__init__.py", line 307, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python2.6/site-packages/ambari_simplejson/decoder.py", line 335, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib/python2.6/site-packages/ambari_simplejson/decoder.py", line 353, in raw_decode
    raise ValueError("No JSON object could be decoded")

I've noticed there's a registered bug around this issue but it is unassigned and unresolved -https://issues.apache.org/jira/browse/AMBARI-13168

Any ideas how to workaround this issue ??

[#2]

@Adi Jabkowsky Is this the error? http://pastebin.com/zc3iHYMu

[#3]

Very similar. The error you posted refers to HDFS. Mine looks practically the same just with HIVE instead of HDFS.

[#4]

@Adi Jabkowsky Ok. That's the error taken from one of old email threads. I used the above fix to fix the issue.

[#5 · Accepted solution]

@Adi Jabkowsky

There are two users involved - admin (advanced ranger-env) and amb_ranger_admin (admin settings).

Can you verify both users password are correct in ranger and ambari UI?

[#6]

After changing amb_ranger_admin password in ranger and in Ambari - problem resolved. What i don't understand is why. I didn't change this user's password in the first place. I didn't even know this user exists. I only changed the user called "admin" in Ranger WEB UI & in Ambari. I never ever touched, edited, updated, changed a user called amb_ranger_admin. Not in Ambari & not in Ranger. But after setting a new password for this amb_ranger_admin user - in Ambari & in Ranger - problem solved. Thank you all for your responses. I rewarded points to everyone 🙂

[#7]

@vperiasamy I agree with Adi's findings. Tagging vel to get more insights.