[YARN-7513] Remove scheduler lock in FSAppAttempt.getWeight()

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.1.0
• Fix Version/s: 3.1.0, 3.0.1
• Component/s: fairscheduler
• Hadoop Flags: Reviewed
• Assignee: Wilfred Spiegelenburg
• Reporter: Wilfred Spiegelenburg
• Created: 16/Nov/17 17:40
• Updated: 26/Feb/20 05:29
• Resolved: 21/Nov/17 18:36

Description

With the change from YARN-7414 a new FindBugs warning was introduced.
The code that was moved from the FairScheduler to the FSAppAttempt can also be simplified by removing the unneeded locking.

Issue Links

• is duplicated by: YARN-10112 Livelock (Runnable FairScheduler.getAppWeight) in Resource Manager when used with Fair Scheduler size based weights enabled