RocheDB v0.2.0 Technical Preview

RocheDB v0.2.0 expands the ring/galaxy-oriented prototype with a stronger operational surface: Universe sync, recovery-oriented topology configuration, Docker Compose demos, CLI workflows, and GitHub Pages documentation.

This is still a technical preview / research OSS release. Do not present it as a production replacement for Redis, PostgreSQL, MongoDB, Apache Arrow, or a mature vector database. The defensible claim remains narrower: RocheDB can reduce working-set size and downstream retrieval input when data is placed in meaningful rings, while the implementation is gaining the operational checks needed for broader evaluation.

Highlights

Universe sync outbox with WAL-backed events, idempotent apply, ack/prune, local data-dir sync, and remote --peers delivery through UAPPLY.
Remote sync observability through universe-status --peers --metrics.
Restart and duplicate-delivery smoke coverage for remote universe sync.
Recovery topology configuration using universes, galaxies, local/remote archive placement, auth references, priorities, snapshot sequence checks, and readonly mirrors.
Docker Compose demos for a single galaxy, a three-node galaxy, and a local/remote universe-shaped topology.
roche CLI CRUD workflows, ring list/count, atlas, and a minimal interactive shell.
GitHub Pages documentation structure with public API, config, CLI, topology, universe sync, protocol compatibility, cloud metrics, and threat model pages.
Wire/client errors now surface as user-facing CLI errors instead of assertion defects for normal operational failures such as failed authentication.

Validation Run

The v0.2 pre-release verification pass should include:

scripts/test_core.sh
scripts/test_all_smoke.sh
scripts/cli_crud_smoke.sh
scripts/universe_sync_failure_smoke.sh
scripts/universe_sync_remote_smoke.sh
Docker Compose demo checks in examples/compose/README.md
nimble check
Markdown link checks for README and docs

Known Gaps

TLS is not implemented; do not expose roched directly on untrusted networks.
Cluster membership is static.
node0 remains the cluster transaction landing coordinator.
Cluster coordinator redundancy, dynamic membership, and epoch migration are not implemented.
Universe sync is durable eventual sync, not immediate global serializability.
Server-side warp scheduling is not implemented.
Package publication workflows are not complete.
WASM browser support, React Native local-state support, Unity assets, Unreal plugins, Kubernetes manifests, and multi-VM / multi-AZ benchmarks are later roadmap items.

RocheDB v0.2.0 Technical Preview

Highlights

Validation Run

Known Gaps

Links