[FLINK-25860] Move read buffer allocation and output file creation to setup method for sort-shuffle result partition to avoid blocking main thread

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.15.0
• Component/s: Runtime / Network
• Labels: pull-request-available
• Assignee: Yuxin Tan
• Reporter: Yingjie Cao
• Created: 28/Jan/22 03:10
• Updated: 04/Feb/22 03:53
• Resolved: 04/Feb/22 03:53

Description

Currently, the read buffer allocation and output file creation of sort-shuffle is performed by the main thread. These operations are a little heavy and can block the main thread for a while which may influence other RPC calls including follow-up task deployment. This ticket aims to solve the issue by moving read buffer allocation and output file creation to setup method. 

Issue Links

• links to: GitHub Pull Request #18554