[PR #1279] [MERGED] [Store]: Update metadata callback sync strategy for tiered backend

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kvcache-ai/Mooncake#2129

bsakaguchi commented

2026-10-29 21:33:00 +00:00

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📋 Pull Request Information

Original PR: https://github.com/kvcache-ai/Mooncake/pull/1279
Author: @YiXR
Created: 12/25/2025
Status: ✅ Merged
Merged: 12/30/2025
Merged by: @wanyue-wy

Base: P2P-Mooncake-Store ← Head: xinyi/tiered-backend-next

📝 Commits (2)

509b554 [Store]: Update metadata callback sync strategy for tiered backend
45c5f2c [Store]: add tiered backend api return error code support

📊 Changes

5 files changed (+180 additions, -85 deletions)

View changed files

📝 mooncake-store/include/tiered_cache/data_copier.h (+7 -5)
📝 mooncake-store/include/tiered_cache/tiered_backend.h (+34 -22)
📝 mooncake-store/include/types.h (+16 -0)
📝 mooncake-store/src/tiered_cache/data_copier.cpp (+10 -8)
📝 mooncake-store/src/tiered_cache/tiered_backend.cpp (+113 -50)

📄 Description

Description

Type of Change

Types
- Bug fix
- New feature
  - Transfer Engine
  - Mooncake Store
  - Mooncake EP
  - Integration
  - P2P Store
  - Python Wheel
- Breaking change
- CI/CD
- Documentation update
- Other

How Has This Been Tested?

Checklist

I have performed a self-review of my own code.
I have updated the documentation.
I have added tests to prove my changes are effective.

_{🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.}

## 📋 Pull Request Information **Original PR:** https://github.com/kvcache-ai/Mooncake/pull/1279 **Author:** [@YiXR](https://github.com/YiXR) **Created:** 12/25/2025 **Status:** ✅ Merged **Merged:** 12/30/2025 **Merged by:** [@wanyue-wy](https://github.com/wanyue-wy) **Base:** `P2P-Mooncake-Store` ← **Head:** `xinyi/tiered-backend-next` --- ### 📝 Commits (2) - [`509b554`](https://github.com/kvcache-ai/Mooncake/commit/509b554da0d9db0e2242d6fb3d9cd652a2986602) [Store]: Update metadata callback sync strategy for tiered backend - [`45c5f2c`](https://github.com/kvcache-ai/Mooncake/commit/45c5f2c62d631da63990ff89daab3b4663f0a877) [Store]: add tiered backend api return error code support ### 📊 Changes **5 files changed** (+180 additions, -85 deletions) <details> <summary>View changed files</summary> 📝 `mooncake-store/include/tiered_cache/data_copier.h` (+7 -5) 📝 `mooncake-store/include/tiered_cache/tiered_backend.h` (+34 -22) 📝 `mooncake-store/include/types.h` (+16 -0) 📝 `mooncake-store/src/tiered_cache/data_copier.cpp` (+10 -8) 📝 `mooncake-store/src/tiered_cache/tiered_backend.cpp` (+113 -50) </details> ### 📄 Description ## Description  ## Type of Change * Types - [ ] Bug fix - [ ] New feature - [ ] Transfer Engine - [ ] Mooncake Store - [ ] Mooncake EP - [ ] Integration - [ ] P2P Store - [ ] Python Wheel - [ ] Breaking change - [ ] CI/CD - [ ] Documentation update - [ ] Other ## How Has This Been Tested?  ## Checklist - [ ] I have performed a self-review of my own code. - [ ] I have updated the documentation. - [ ] I have added tests to prove my changes are effective. --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

bsakaguchi

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[PR #1279] [MERGED] [Store]: Update metadata callback sync strategy for tiered backend #2129