[SPARK-22721] BytesToBytesMap peak memory usage not accurate after reset()

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2.0
• Fix Version/s: 2.3.0
• Component/s: Spark Core
• Assignee: Juliusz Sompolski
• Reporter: Juliusz Sompolski
• Created: 06/Dec/17 20:23
• Updated: 07/Dec/17 21:31
• Resolved: 07/Dec/17 12:08

Description

BytesToBytesMap doesn't update peak memory usage before shrinking back to initial capacity in reset(), so after a disk spill one never knows what was the size of hash table was before spilling.

Issue Links

• links to: [Github] Pull Request #19915 (juliuszsompolski)
• links to: [Github] Pull Request #19923 (juliuszsompolski)