[AMBARI-15876] Stack advisor work for adding and disabling LLAP queue when Interactive query is turned on and off respectively.

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.0
• Fix Version/s: 2.4.0
• Component/s: ambari-server
• Assignee: Swapan Shridhar
• Reporter: Swapan Shridhar
• Due: 14/Apr/16
• Created: 14/Apr/16 03:03
• Updated: 16/Apr/16 09:24
• Resolved: 16/Apr/16 09:24

Description

--> When Hive Server Interactive is turned ON:
===================================
Ambari creates OR "modifies 'llap' queue 'state and/or capacity' " based on below conditions:

• if only 1 queue exists at root level and is 'default' queue and has 100% cap -> Creates 'llap' queue, OR
• if 2 queues exists at root level ('llap' and 'default') :
  -> 'llap' queue state is STOPPED -> Modifies 'llap' queue state to RUNNING, adjusts capacity, OR
  -> 'llap' queue state is RUNNING and 'llap_queue_capacity' prop != 'llap' queue current running capacity ->
  Modifies 'llap' queue capacity to 'llap_queue_capacity'.

--> When Hive Server Interactive is turned OFF:
===================================

• Checks and sees (1). If only two leaf queues exist at root level, namely: 'default' and 'llap',
  and (2). 'llap' is in RUNNING state.

• If yes, performs the following actions: (1). 'llap' queue state set to STOPPED,
  (2). 'llap' queue capacity set to 0 %,
  (3). 'default' queue capacity set to 100 %

Issue Links

• links to: Reviewboard Link