[AMBARI-8485] Hive service components should indicate security state

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 2.0.0
• Component/s: ambari-server, stacks
• Labels: hcatalog hive kerberos metastore mysql security
• Epic Link: Ambari Automated Kerberization
• Assignee: Robert Levas
• Reporter: Robert Levas
• Created: 30/Nov/14 11:10
• Updated: 07/Jan/15 02:39
• Resolved: 07/Jan/15 01:22

Description

The Hive service components should indicate security state when queried by Ambari Agent via STATUS_COMMAND. Each component should determine it's state as follows:

HIVE_METASTORE

Indicators

• Command JSON
  • config['configurations']['cluster-env']['security_enabled']
    • = “true”
• Configuration File: params.hive_client_conf_dir + ‘hive-site.xml’
  • hive.metastore.sasl.enabled"
    • = "true"
    • required
  • hive.server2.authentication
    • = “kerberos”
    • required
  • hive.security.authorization.enabled
    • = “true”
    • required
  • hive.metastore.kerberos.principal
    • not empty
    • required
  • hive.metastore.kerberos.keytab.file
    • not empty
    • path exists and is readable
    • required

Pseudocode

if indicators imply security is on and validate
    if kinit(have metastore principal) succeeds
        state = SECURED_KERBEROS
    else
        state = ERROR 
else
    state = UNSECURED

HIVE_SERVER

Indicators

• Command JSON
  • config['configurations']['cluster-env']['security_enabled']
    • = “true”
• Configuration File: params.hive_client_conf_dir + ‘hive-site.xml’
  • hive.metastore.sasl.enabled"
    • = "true"
    • required
  • hive.server2.authentication
    • = “kerberos”
    • required
  • hive.security.authorization.enabled
    • = “true”
    • required
  • hive.server2.authentication.kerberos.principal
    • not empty
    • required
  • hive.server2.authentication.kerberos.keytab
    • not empty
    • path exists and is readable
    • required
  • hive.server2.authentication.spnego.principal
    • not empty
    • required
  • hive.server2.authentication.spnego.keytab
    • not empty
    • path exists and is readable
    • required

Pseudocode

if indicators imply security is on and validate
    if kinit(hive server principal) succeeds
        state = SECURED_KERBEROS
    else
        state = ERROR 
else
    state = UNSECURED

WEBHCAT_SERVER

Indicators

• Command JSON
  • config['configurations']['cluster-env']['security_enabled']
    • = “true”
• Configuration File: params.hive_client_conf_dir + ‘hive-site.xml’
  • hive.metastore.sasl.enabled"
    • = "true"
    • required
  • hive.server2.authentication
    • = “kerberos”
    • required
  • hive.security.authorization.enabled
    • = “true”
    • required
• Configuration File: params.config_dir + ‘webhcat-site.xml’
  • templeton.kerberos.secret
    • = “secret”
    • required
  • templeton.kerberos.principal
    • not empty
    • required
  • templeton.kerberos.keytab
    • not empty
    • path exists and is readable
    • required

Pseudocode

if indicators imply security is on and validate
    if kinit(webhcat server principal) succeeds
        state = SECURED_KERBEROS
    else
        state = ERROR 
else
    state = UNSECURED

HIVE_CLIENT

Indicators

• Command JSON
  • config['configurations']['cluster-env']['security_enabled']
    • = “true”

Pseudocode

if indicators imply security is on and validate
    state = SECURED_KERBEROS
else
    state = UNSECURED

Note: Due to the cost of calling kinit results should be cached for a period of time before retrying. This may be an issue depending on the frequency of the heartbeat timeout.
Note: kinit calls should specify a temporary cache file which should be destroyed after command is executed - BUG-29477

Issue Links

• requires: AMBARI-8343 Components should indicate Security State (via ambari-agent)
• links to: ReviewBoard