[YARN-7769] FS QueueManager should not create default queue at init

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.1.0
• Fix Version/s: 3.4.0
• Component/s: fairscheduler
• Hadoop Flags: Reviewed
• Assignee: Benjamin Teke
• Reporter: Wilfred Spiegelenburg
• Created: 18/Jan/18 06:06
• Updated: 22/May/21 13:00
• Resolved: 22/May/21 12:57

Description

Currently the FairScheduler QueueManager automatically creates the default queue. However the default queue does not need to exist. We have two possible cases which we should handle:

• Based on the placement rule "Default" the name for the default queue might not be default and it should be created with a different name
• There might not be a "Default" placement rule at all which removes the need to create the queue.

We should leave the creation of the default queue to the point in time that we can assess if it is needed or not.

Issue Links

• is depended upon by: YARN-8951 Defining default queue placement rule in allocations file with create="false" throws an NPE
• relates to: YARN-7139 FairScheduler: finished applications are always restored to default queue
• relates to: YARN-10753 Document the removal of FS default queue creation