[FLINK-19602] Introduce new config options to enable sort-merge based blocking shuffle

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.12.0
• Fix Version/s: 1.12.0
• Component/s: Runtime / Network
• Assignee: Yingjie Cao
• Reporter: Yingjie Cao
• Created: 13/Oct/20 06:57
• Updated: 05/Nov/20 15:06
• Resolved: 05/Nov/20 15:06

Description

1. taskmanager.network.sort-merge-blocking-shuffle.buffers-per-partition: Number of network buffers required for each sort-merge blocking result partition.

2. taskmanager.network.sort-merge-blocking-shuffle.min-parallelism: Minimum parallelism to enable the sort-merge based blocking shuffle.

With these new config options, the default behavior of blocking shuffle stays unchanged.