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- known-limitations, deployment runbook, release checklist - prod compose requires JWT secret; BARADB_ENV=production fail-closed - scripts/backup-restore-drill.sh (backup → wipe → restore → verify) - version bump 1.2.0 (nimble, Dockerfile, health, CHANGELOG dated)
56 lines
2.4 KiB
Markdown
56 lines
2.4 KiB
Markdown
# Known Limitations — v1.2.0 Production GA
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This page defines **what BaraDB promises** in the v1.2.0 production cut.
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| Tier | Meaning |
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|------|---------|
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| **Supported (GA)** | Documented, tested, appropriate for production apps that fit the scope |
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| **Experimental** | Works in tests/ops demos; not a reliability SLA target |
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| **Not supported** | Out of scope; may fail or corrupt assumptions |
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## Support matrix
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| Area | GA (v1.2.0) | Experimental / later |
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|------|-------------|----------------------|
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| Single-node SQL + LSM storage | **Supported** | — |
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| Schema persistence (tables, indexes) | **Supported** | — |
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| FTS / HNSW / graphs across restart | **Supported** | — |
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| Auth + JWT (when configured) | **Supported** | — |
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| Backup / restore (offline, all-databases) | **Supported** | — |
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| Multi-database (non-Raft) | **Supported** | — |
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| Raft 3-node election + SQL/DDL | **Experimental** | InstallSnapshot SM payload, membership |
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| Raft multi-database | **Not supported** | only `default` |
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| Leader write forwarding | **Experimental** | needs `BARADB_RAFT_CLIENT_PEERS` |
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| Follower linearizable reads | **Not supported** | best-effort after apply |
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| ORC multi-threaded shared LSM | **Not supported** | default is ARC (`nim.cfg`) |
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| Zero-downtime rolling upgrade | **Not supported** | stop → backup → upgrade |
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| Postgres wire protocol | **Not supported** | Bara wire + HTTP |
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## Single-node GA (what you can rely on)
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- Process crash + WAL recovery for the default durability settings
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- CREATE TABLE / indexes that survive restart (see engine-persistence work)
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- HTTP `/health` and `/metrics` for process liveness
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- Offline backup of `data/databases` and restore onto an empty data root
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## Raft (experimental ops)
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Documented in [distributed.md](distributed.md). Suitable for learning and careful staging; **not** the v1.2.0 HA product tier.
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- SQL DML/DDL on **`default` only**
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- Safe log prefix compact (not full InstallSnapshot)
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- Failover proven in process e2e tests
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## Operational requirements
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- Set a strong `BARADB_JWT_SECRET` and `BARADB_AUTH_ENABLED=true` in production (see prod compose)
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- Test restores regularly (`scripts/backup-restore-drill.sh`)
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- Do not share one data directory between two running processes
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## See also
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- [Deployment / runbook](deployment.md)
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- [Backup](backup.md)
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- [Raft cluster status](../superpowers/specs/2026-07-30-raft-cluster-status.md)
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- [Production GA plan](../superpowers/plans/2026-07-30-production-ga.md)
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