LevelDB, RocksDB and BoltDB support
维护者通常 1 天内回复
还没有人认领这个 Issue。
评估
调研方向
Start by locating the registry plugin architecture and reading how existing database integrations are organized. Then assess support for reading LevelDB and RocksDB directories, read-only access by default, byte-oriented key/value views, prefix filtering and range scans, and RocksDB column families. Done means these requirements are covered; the issue names no files or tests, so identify the relevant entry points and validation approach in the project first.
由索引模型根据 Issue 内容生成。
描述
Problem
None of the embedded key-value stores LevelDB, RocksDB and BoltDB is supported, so inspecting an application's local data means writing a throwaway program. They run in-process with no server, so the only way in is to open the files, the way TablePro opens a SQLite file today. Folds in #524.
Proposed solution
A registry plugin that opens a local store:
- Point at a LevelDB or RocksDB directory, or a BoltDB file. Read-only by default, since these formats hold a single-process lock and opening one under a running app is unsafe. When another process holds the lock, say so plainly instead of waiting on it.
- Keys and values in the grid, with a hex and a text view, since all three stores are byte-oriented.
- Prefix filtering and range scans, since there is no query language to fall back on.
- The sidebar shows column families for RocksDB and buckets, nested ones included, for BoltDB. LevelDB has one flat keyspace.
Reading the files
- LevelDB and RocksDB: link their C APIs as static libraries published through
apple/Libs/, or read the on-disk format (sorted table files, the manifest and the write-ahead log, with their compression) in Swift. The C APIs are the smaller risk. - BoltDB (bbolt, which etcd uses) is Go only, with no C library, but its file is one B+tree of fixed-size pages, small enough to read in Swift.
Open question
Whether writes ever come after the read-only version, and for which store first.
Alternatives considered
A throwaway script per inspection.
Platform
macOS
Related database type
N/A / General
- 主要语言
- Swift
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从这里开始
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- Fork 仓库，在一个分支上完成修改。
- 提交 Pull Request，并在描述里引用这个 Issue 编号。
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