[FLINK-19600] Introduce PartitionedFile and the corresponding writer/reader for 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 06:10
• Updated: 05/Nov/20 15:05
• Resolved: 05/Nov/20 15:05

Description

PartitionedFile is the persistent file type of sort-merge based blocking shuffle. It stores data of all subpartitions in subpartition index order. PartitionedFile can be produced by PartitionedFileWriter and consumed by PartitionedFileReader.