[IGNITE-16232] PageMemory Persistent Store porting and refactoring

• Type: Epic
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: persistence
• Labels: ignite-3
• Epic Name: New PageMemory Persistent Store
• Ignite Flags: Docs Required
• Assignee: Unassigned
• Reporter: Sergey Chugunov
• Created: 29/Dec/21 15:23
• Updated: 07/Oct/22 06:49

Description

Ignite 2.x storage based on PageMemory shows good performance on read-intensive workloads and can be used both in in-memory and persistent scenarios.

So it can be employed in Ignite 3.0 for use-cases where RocksDB is less effective.

At the same time Ignite 3.0 already has Raft-based replication protocol which can provide logging service for PageMemory-based storage.
This allows implementing more efficient and reliable algorithms of logging and checkpointing.

A more detailed overview of these algorithms is available in this document.