[BEAM-1828] GlobalWatermarkHolder uses unpersist instead of destory

• Type: Bug
• Status: Resolved
• Priority: P3
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: runner-spark
• Assignee: Stas Levin
• Reporter: Stas Levin
• Created: 29/Mar/17 11:54
• Updated: 16/May/20 13:16
• Resolved: 30/Mar/17 11:52

Description

GlobalWatermarkHolder uses unpersist when it's done with the broadcast, however, this leaves a copy of the broadcast in the driver's memory so destroy may be more appropriate for this.

Issue Links

• links to: GitHub Pull Request #2355