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Discuss durable local chDB storage for Maple local mode

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还没有人认领这个 Issue。

评估

难度
5/5
预计耗时
一周以上
新手友好度
25/100
Issue 类型
功能
描述清晰度
需要澄清
活跃度
活跃
技术栈
typescript
领域
backend, databases

调研方向

Start by reading Maple's local-mode unclean-shutdown handling and local-store migration flow; the issue does not name files or tests. Compare those recovery needs with chdb-durable's checkpoints, WAL replay, and single-writer lease, then discuss a JS/TypeScript, Bun, or sidecar integration with maintainers. Done means agreeing on whether this direction fits and defining the Maple-side changes and recovery behavior.

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描述

I was looking at Maple's local mode and noticed that it already treats embedded chDB as a real local store, not just a temporary cache. The unclean-shutdown handling and local-store migration flow also suggest that recovery semantics matter a lot for this mode.

That made me wonder whether chdb-durable could be a useful fit here.

chdb-durable is a durable mode for embedded chDB: it keeps authoritative state in object storage or a local durable namespace, restores from checkpoints plus WAL replay, and uses a single-writer lease.

Potential value for Maple:

  1. Recover local telemetry after process crash or machine restart.
  2. Avoid wiping/rebuilding the local chDB store after dirty shutdowns.
  3. Store local-mode state in S3/R2/GCS/Azure/local durable storage.
  4. Checkpoint after successful local-store migrations.

Today chdb-durable is mainly exposed from Python. If this direction sounds useful, the chDB side can help contribute a JS/TypeScript, Bun, or sidecar durable integration and discuss the Maple-side changes together.

主要语言
TypeScript
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环境准备

这个项目没有提供开发容器、Dockerfile 或贡献指南,环境需要你自己搭建:先看它的 README,通用步骤见我们的新手贡献指南。

从这里开始

  1. 先读完整个 Issue,再读项目的贡献指南。
  2. 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
  3. Fork 仓库,在一个分支上完成修改。
  4. 提交 Pull Request,并在描述里引用这个 Issue 编号。

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