[AMBARI-24374] Check Keytabs Kerberos Client step failing while re-dding a service via UI

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.7.0
• Fix Version/s: 2.7.1
• Component/s: ambari-agent
• Labels: pull-request-available
• Assignee: Sandor Molnar
• Reporter: Sandor Molnar
• Created: 27/Jul/18 17:22
• Updated: 28/Jul/18 17:43
• Resolved: 28/Jul/18 17:43

Description

STR

install ambari-2.7.0.1-11

deploy a kerberized cluster (i.e. with ZK and Atlas)

remove one of the services (I removed Atlas)

add that service again in via UI

Result

The following error occurred at the Check Keytabs Kerberos Client task:

stderr: 
Traceback (most recent call last):
  File "/var/lib/ambari-agent/cache/stacks/HDP/3.0/services/KERBEROS/package/scripts/kerberos_client.py", line 91, in 
    KerberosClient().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/stacks/HDP/3.0/services/KERBEROS/package/scripts/kerberos_client.py", line 87, in check_keytabs
    find_missing_keytabs(params, output_hook)
  File "/usr/lib/ambari-agent/lib/ambari_commons/kerberos/kerberos_common.py", line 166, in find_missing_keytabs
    missing_keytabs = MissingKeytabs.from_kerberos_records(params.kerberos_command_params, params.hostname)
  File "/usr/lib/ambari-agent/lib/ambari_commons/kerberos/kerberos_common.py", line 55, in from_kerberos_records
    with_missing_keytab = (each for each in kerberos_record \
TypeError: 'NoneType' object is not iterable
 stdout:


Command failed after 1 tries

Issue Links

• links to: GitHub Pull Request #1906
• links to: GitHub Pull Request #1909