[FLINK-32071] Implement the snapshot manager for merged checkpoint files in TM

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Done
• Affects Version/s: 1.18.0
• Fix Version/s: 1.18.0
• Component/s: Runtime / Checkpointing, Runtime / State Backends
• Labels: pull-request-available
• Assignee: Zakelly Lan
• Reporter: Zakelly Lan
• Created: 13/May/23 04:37
• Updated: 23/Jun/23 16:52
• Resolved: 23/Jun/23 16:52

Description

As the first part of FLIP-306, which aims to provide an unified file merging mechanism for checkpoint files, this ticket/PR implements the basic file manager for merged files, providing file system directory layout and its initialization. It also provides the implementation of physical and logical files and the reference counting relationship between them.

Issue Links

• links to: GitHub Pull Request #22590
• links to: GitHub Pull Request #22590