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Admin CLI: check / rebuild-rollups / inspect-segment / verify-period / export-parquet #18

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Merged
pbudzik merged 1 commit into from
May 16, 2026
Merged

Admin CLI: check / rebuild-rollups / inspect-segment / verify-period / export-parquet #18

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121 changes: 121 additions & 0 deletions Cargo.lock
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1 change: 1 addition & 0 deletions Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@ anyhow = "1.0.102"
axum = "0.8.9"
bincode = "1.3.3"
blake3 = "1.5"
clap = { version = "4", features = ["derive"] }
byteorder = "1.5.0"
bytes = "1.11.1"
chrono = { version = "0.4.44", features = ["serde"] }
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20 changes: 18 additions & 2 deletions README.md
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Expand Up @@ -73,10 +73,26 @@ Ingest response counts `accepted`, `duplicates` (same id + same payload), `confl
```bash
cargo build
cargo test
cargo run # HTTP server on 127.0.0.1:8080
cargo run # HTTP server on 127.0.0.1:8080 (default)
cargo run -- --help # see admin subcommands
```

Configuration is currently hardcoded in `Config::default()` (db_root `./data`, 64 MiB memtable, 1M dedupe entries).
Configuration is currently hardcoded in `Config::default()` (db_root `./data`, 64 MiB memtable, 1M dedupe entries). The `--db-root` flag overrides the data directory.

## Admin CLI

The `usagedb` binary doubles as an admin tool. Subcommands operate on the on-disk state without needing the HTTP server running:

```
usagedb serve # HTTP server (default)
usagedb check [--deep] # manifest summary; --deep verifies every segment
usagedb rebuild-rollups --from <RFC3339> --to <RFC3339> # drop rollups + rewind watermark
usagedb inspect-segment <segment_id> # metadata + sample rows
usagedb verify-period --account <id> --from <RFC3339> --to <RFC3339> # raw vs rollup drift
usagedb export-parquet <output.parquet> # dump every raw segment to Parquet
```

All commands accept `--db-root <path>` (default `./data`). Admin commands assume the server is **not** running concurrently — file locking to prevent that is on the backlog.

## Durability contract

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