Yesha Vora created AMBARI-22126:
-----------------------------------

             Summary: Regenerate keytab operation updates 
livy.server.launch.kerberos.keytab incorrectly
                 Key: AMBARI-22126
                 URL: https://issues.apache.org/jira/browse/AMBARI-22126
             Project: Ambari
          Issue Type: Bug
    Affects Versions: 2.6.0
            Reporter: Yesha Vora


Scenario:
1) Install Ambari-2.5.0 and HDP 2.6.0
Livy.conf has livy.server.launch.kerberos.keytab set to 
/etc/security/keytabs/livy2.service.keytab. 
/etc/security/keytabs/livy2.service.keytab is present on host.
2) Upgrade Ambari to 2.6.0
3) Regenerate keytab for missing components
4) Restart services with Stale configs
Here, Livy start operation fails because it modified 
livy.server.launch.kerberos.keytab to 
/etc/security/keytabs/livy.service.keytab. 
livy.service.keytab file is not present on Host
{code}
stderr:   /var/lib/ambari-agent/data/errors-731.txt

Traceback (most recent call last):
  File 
"/var/lib/ambari-agent/cache/common-services/SPARK2/2.0.0/package/scripts/livy2_server.py",
 line 144, in <module>
    LivyServer().execute()
  File 
"/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py",
 line 350, in execute
    method(env)
  File 
"/var/lib/ambari-agent/cache/common-services/SPARK2/2.0.0/package/scripts/livy2_server.py",
 line 59, in start
    self.wait_for_dfs_directories_created([params.entity_groupfs_store_dir, 
params.entity_groupfs_active_dir])
  File 
"/var/lib/ambari-agent/cache/common-services/SPARK2/2.0.0/package/scripts/livy2_server.py",
 line 84, in wait_for_dfs_directories_created
    user=params.livy2_user
  File "/usr/lib/python2.6/site-packages/resource_management/core/base.py", 
line 166, in __init__
    self.env.run()
  File 
"/usr/lib/python2.6/site-packages/resource_management/core/environment.py", 
line 160, in run
    self.run_action(resource, action)
  File 
"/usr/lib/python2.6/site-packages/resource_management/core/environment.py", 
line 124, in run_action
    provider_action()
  File 
"/usr/lib/python2.6/site-packages/resource_management/core/providers/system.py",
 line 262, in action_run
    tries=self.resource.tries, try_sleep=self.resource.try_sleep)
  File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", 
line 72, in inner
    result = function(command, **kwargs)
  File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", 
line 102, in checked_call
    tries=tries, try_sleep=try_sleep, 
timeout_kill_strategy=timeout_kill_strategy)
  File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", 
line 150, in _call_wrapper
    result = _call(command, **kwargs_copy)
  File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", 
line 303, in _call
    raise ExecutionFailed(err_msg, code, out, err)
resource_management.core.exceptions.ExecutionFailed: Execution of 
'/usr/bin/kinit -kt /etc/security/keytabs/livy.service.keytab 
livy/[email protected]' returned 1. kinit: Key table file 
'/etc/security/keytabs/livy.service.keytab' not found while getting initial 
credentials
stdout:   /var/lib/ambari-agent/data/output-731.txt

2017-10-03 19:10:39,638 - Stack Feature Version Info: Cluster Stack=2.6, 
Command Stack=None, Command Version=2.6.0.3-8 -> 2.6.0.3-8
2017-10-03 19:10:39,641 - Using hadoop conf dir: /usr/hdp/2.6.0.3-8/hadoop/conf
2017-10-03 19:10:39,987 - Stack Feature Version Info: Cluster Stack=2.6, 
Command Stack=None, Command Version=2.6.0.3-8 -> 2.6.0.3-8
2017-10-03 19:10:39,988 - Using hadoop conf dir: /usr/hdp/2.6.0.3-8/hadoop/conf
2017-10-03 19:10:39,989 - Group['livy'] {}
2017-10-03 19:10:39,990 - Group['spark'] {}
2017-10-03 19:10:39,990 - Group['hdfs'] {}
2017-10-03 19:10:39,991 - Group['hadoop'] {}
2017-10-03 19:10:39,991 - Group['users'] {}
2017-10-03 19:10:39,992 - User['hive'] {'gid': 'hadoop', 
'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None}
2017-10-03 19:10:39,993 - User['zookeeper'] {'gid': 'hadoop', 
'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None}
2017-10-03 19:10:39,994 - User['infra-solr'] {'gid': 'hadoop', 
'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None}
2017-10-03 19:10:39,995 - User['oozie'] {'gid': 'hadoop', 
'fetch_nonlocal_groups': True, 'groups': ['users'], 'uid': None}
2017-10-03 19:10:39,996 - User['ams'] {'gid': 'hadoop', 
'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None}
2017-10-03 19:10:39,997 - User['tez'] {'gid': 'hadoop', 
'fetch_nonlocal_groups': True, 'groups': ['users'], 'uid': None}
2017-10-03 19:10:39,998 - User['livy'] {'gid': 'hadoop', 
'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None}
2017-10-03 19:10:39,999 - User['spark'] {'gid': 'hadoop', 
'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None}
2017-10-03 19:10:40,000 - User['ambari-qa'] {'gid': 'hadoop', 
'fetch_nonlocal_groups': True, 'groups': ['users'], 'uid': None}
2017-10-03 19:10:40,001 - User['flume'] {'gid': 'hadoop', 
'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None}
2017-10-03 19:10:40,002 - User['kafka'] {'gid': 'hadoop', 
'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None}
2017-10-03 19:10:40,003 - User['hdfs'] {'gid': 'hadoop', 
'fetch_nonlocal_groups': True, 'groups': ['hdfs'], 'uid': None}
2017-10-03 19:10:40,004 - User['yarn'] {'gid': 'hadoop', 
'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None}
2017-10-03 19:10:40,005 - User['mapred'] {'gid': 'hadoop', 
'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None}
2017-10-03 19:10:40,006 - User['hbase'] {'gid': 'hadoop', 
'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None}
2017-10-03 19:10:40,007 - User['hcat'] {'gid': 'hadoop', 
'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None}
2017-10-03 19:10:40,008 - File['/var/lib/ambari-agent/tmp/changeUid.sh'] 
{'content': StaticFile('changeToSecureUid.sh'), 'mode': 0555}
2017-10-03 19:10:40,010 - Execute['/var/lib/ambari-agent/tmp/changeUid.sh 
ambari-qa 
/tmp/hadoop-ambari-qa,/tmp/hsperfdata_ambari-qa,/home/ambari-qa,/tmp/ambari-qa,/tmp/sqoop-ambari-qa
 0'] {'not_if': '(test $(id -u ambari-qa) -gt 1000) || (false)'}
2017-10-03 19:10:40,034 - Skipping 
Execute['/var/lib/ambari-agent/tmp/changeUid.sh ambari-qa 
/tmp/hadoop-ambari-qa,/tmp/hsperfdata_ambari-qa,/home/ambari-qa,/tmp/ambari-qa,/tmp/sqoop-ambari-qa
 0'] due to not_if
2017-10-03 19:10:40,035 - Directory['/tmp/hbase-hbase'] {'owner': 'hbase', 
'create_parents': True, 'mode': 0775, 'cd_access': 'a'}
2017-10-03 19:10:40,036 - File['/var/lib/ambari-agent/tmp/changeUid.sh'] 
{'content': StaticFile('changeToSecureUid.sh'), 'mode': 0555}
2017-10-03 19:10:40,038 - File['/var/lib/ambari-agent/tmp/changeUid.sh'] 
{'content': StaticFile('changeToSecureUid.sh'), 'mode': 0555}
2017-10-03 19:10:40,039 - call['/var/lib/ambari-agent/tmp/changeUid.sh hbase'] 
{}
2017-10-03 19:10:40,065 - call returned (0, '1002')
2017-10-03 19:10:40,066 - Execute['/var/lib/ambari-agent/tmp/changeUid.sh hbase 
/home/hbase,/tmp/hbase,/usr/bin/hbase,/var/log/hbase,/tmp/hbase-hbase 1002'] 
{'not_if': '(test $(id -u hbase) -gt 1000) || (false)'}
2017-10-03 19:10:40,082 - Skipping 
Execute['/var/lib/ambari-agent/tmp/changeUid.sh hbase 
/home/hbase,/tmp/hbase,/usr/bin/hbase,/var/log/hbase,/tmp/hbase-hbase 1002'] 
due to not_if
2017-10-03 19:10:40,084 - Group['hdfs'] {}
2017-10-03 19:10:40,085 - User['hdfs'] {'fetch_nonlocal_groups': True, 
'groups': ['hdfs', 'hdfs']}
2017-10-03 19:10:40,086 - FS Type: 
2017-10-03 19:10:40,087 - Directory['/etc/hadoop'] {'mode': 0755}
2017-10-03 19:10:40,112 - File['/usr/hdp/2.6.0.3-8/hadoop/conf/hadoop-env.sh'] 
{'content': InlineTemplate(...), 'owner': 'root', 'group': 'hadoop'}
2017-10-03 19:10:40,113 - 
Directory['/var/lib/ambari-agent/tmp/hadoop_java_io_tmpdir'] {'owner': 'hdfs', 
'group': 'hadoop', 'mode': 01777}
2017-10-03 19:10:40,154 - Execute[('setenforce', '0')] {'not_if': '(! which 
getenforce ) || (which getenforce && getenforce | grep -q Disabled)', 'sudo': 
True, 'only_if': 'test -f /selinux/enforce'}
2017-10-03 19:10:40,194 - Directory['/grid/0/log/hdfs'] {'owner': 'root', 
'create_parents': True, 'group': 'hadoop', 'mode': 0775, 'cd_access': 'a'}
2017-10-03 19:10:40,195 - Directory['/var/run/hadoop'] {'owner': 'root', 
'create_parents': True, 'group': 'root', 'cd_access': 'a'}
2017-10-03 19:10:40,196 - Directory['/tmp/hadoop-hdfs'] {'owner': 'hdfs', 
'create_parents': True, 'cd_access': 'a'}
2017-10-03 19:10:40,201 - 
File['/usr/hdp/2.6.0.3-8/hadoop/conf/commons-logging.properties'] {'content': 
Template('commons-logging.properties.j2'), 'owner': 'root'}
2017-10-03 19:10:40,203 - File['/usr/hdp/2.6.0.3-8/hadoop/conf/health_check'] 
{'content': Template('health_check.j2'), 'owner': 'root'}
2017-10-03 19:10:40,209 - 
File['/usr/hdp/2.6.0.3-8/hadoop/conf/log4j.properties'] {'content': 
InlineTemplate(...), 'owner': 'hdfs', 'group': 'hadoop', 'mode': 0644}
2017-10-03 19:10:40,219 - 
File['/usr/hdp/2.6.0.3-8/hadoop/conf/hadoop-metrics2.properties'] {'content': 
InlineTemplate(...), 'owner': 'hdfs', 'group': 'hadoop'}
2017-10-03 19:10:40,219 - 
File['/usr/hdp/2.6.0.3-8/hadoop/conf/task-log4j.properties'] {'content': 
StaticFile('task-log4j.properties'), 'mode': 0755}
2017-10-03 19:10:40,220 - 
File['/usr/hdp/2.6.0.3-8/hadoop/conf/configuration.xsl'] {'owner': 'hdfs', 
'group': 'hadoop'}
2017-10-03 19:10:40,225 - File['/etc/hadoop/conf/topology_mappings.data'] 
{'owner': 'hdfs', 'content': Template('topology_mappings.data.j2'), 'only_if': 
'test -d /etc/hadoop/conf', 'group': 'hadoop', 'mode': 0644}
2017-10-03 19:10:40,248 - File['/etc/hadoop/conf/topology_script.py'] 
{'content': StaticFile('topology_script.py'), 'only_if': 'test -d 
/etc/hadoop/conf', 'mode': 0755}
2017-10-03 19:10:40,833 - Using hadoop conf dir: /usr/hdp/2.6.0.3-8/hadoop/conf
2017-10-03 19:10:40,837 - Verifying DFS directories where ATS stores time line 
data for active and completed applications.
2017-10-03 19:10:40,837 - Execute['/usr/bin/kinit -kt 
/etc/security/keytabs/livy.service.keytab livy/[email protected]'] {'user': 
'livy'}

Command failed after 1 tries{code}
Regenerate keytabs should not modify livy.server.launch.kerberos.keytab property



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