monitor v0.39.0

BetterDB Monitor

The monitoring layer that Valkey deserves.

BetterDB persists what Valkey throws away - slowlogs, command patterns, client activity, anomaly signals - so you can debug what happened at 3am, not just what's happening now. Built for Valkey 8.x with native support for COMMANDLOG, CLUSTER SLOT-STATS, and per-thread I/O metrics. Redis 6+ compatible for everything else.

Website | Docker Hub | npm | Documentation | Blog

BetterDB is built by BetterDB Inc., a public benefit company operating under the OCV Open Charter.

Quick Start (Docker)

docker run -d --name betterdb -p 3001:3001 betterdb/monitor:latest

Point your browser to http://localhost:3001. To monitor a specific instance:

docker run -d \
  --name betterdb \
  -p 3001:3001 \
  -e DB_HOST=your-valkey-host \
  -e DB_PORT=6379 \
  -e DB_PASSWORD=your-password \
  betterdb/monitor:latest

Two image variants are published, both multi-arch (linux/amd64, linux/arm64):

See Docker Production Deployment for persistent storage, custom ports, licensing, and air-gapped setups.

Quick Start (CLI)

Run BetterDB Monitor without Docker:

npx @betterdb/monitor

On first run, an interactive setup wizard guides you through database connection, storage backend (SQLite, PostgreSQL, or in-memory), and server settings. Configuration is saved to ~/.betterdb/config.json.

npm install -g @betterdb/monitor   # global install
betterdb --setup                   # re-run setup wizard
betterdb --port 8080               # override server port
betterdb --db-host 1.2.3.4         # override database host
betterdb --help                    # all options

Requires Node.js >= 20.0.0 and a Valkey or Redis instance to monitor. For SQLite storage, also npm install -g better-sqlite3.

What You Get

See everything, keep everything

• Historical analytics - query slowlogs, command patterns, client activity, and latency across any time range. The data that used to disappear after a log rotation.
• COMMANDLOG support - Valkey 8.1+ exclusive. Large requests and large replies, not just the slow ones.
• MONITOR capture sessions - record real traffic on demand: live tail, filter, replay, export to JSON/CSV, and cross-reference against connection history.
• Hot key tracking - top keys by access frequency with rank movement over time. Key Analytics (Pro, free in early access) adds type, TTL, and size distributions from live sampling.
• Cluster visibility - topology graphs, SLOT-STATS heatmaps, per-slot CPU and key distribution.
• CPU & I/O thread metrics - per-thread visibility that no Redis tool can provide.
• Client analytics - see exactly which service is responsible for what, attributed by client name and pattern.
• ACL audit trail - track who accessed what, persisted for compliance and post-incident debugging.

Understand and act

• Anomaly detection (Pro, free in early access) - automatic baseline learning with correlated events and plain-English diagnoses. 20+ detectors, no manual thresholds.
• Capacity forecasting - projected time-to-ceiling for memory, ops/sec, CPU, and fragmentation.
• Webhooks - HMAC-signed alert deliveries with retries and a full delivery log.
• Live migration - move between Redis and Valkey with a three-phase analysis, execution, and validation workflow.

Built for the AI era

• Vector search observability - FT.SEARCH ops/sec and latency with per-index health for valkey-search and RediSearch. See docs/vector-ai.
• Inference latency - p50/p95/p99 per index, with SLA breach alerts (Pro, free in early access).
• Semantic cache intelligence (Pro, free in early access) - hit-rate health, similarity-threshold recommendations, and an approve/reject proposal workflow. Agent memory observability included.
• AI traces - OTLP span waterfalls from your AI application, correlated with the live Valkey state underneath each request.

Plugs into everything

• MCP server - 60 tools for Claude Code, Cursor, or any MCP client via @betterdb/mcp.
• Prometheus endpoint - 100+ betterdb_* metrics. See docs/prometheus-metrics.md.
• OpenTelemetry - mirror metrics and events to any OTLP backend.
• REST API - everything in the UI is an API call, documented via OpenAPI.

Access Your Data Your Way

Note: In production builds (Docker, CLI) API routes are served under the /api prefix. In local development (pnpm dev) there is no prefix - e.g. http://localhost:3001/health.

Supported Databases

The backend uses a unified adapter over the wire-compatible iovalkey client and auto-detects Valkey vs Redis from the INFO response (DB_TYPE=auto). Capabilities like COMMANDLOG and SLOT-STATS are detected per version, and the UI gracefully degrades when a feature isn't available.

Managed services are supported too - guides for AWS ElastiCache, MemoryDB, Redis Cloud, and Upstash live in docs/providers, and @betterdb/agent reaches VPC-only instances over an outbound WebSocket.

Docker Production Deployment

The Docker image contains the monitoring application (backend + frontend). It requires:

1. A Valkey/Redis instance to monitor
2. A PostgreSQL instance for data persistence (or use memory storage)

Run with PostgreSQL Storage

docker run -d \
  --name betterdb-monitor \
  -p 3001:3001 \
  -e DB_HOST=your-valkey-host \
  -e DB_PORT=6379 \
  -e DB_PASSWORD=your-password \
  -e STORAGE_TYPE=postgres \
  -e STORAGE_URL=postgresql://user:pass@postgres-host:5432/dbname \
  betterdb/monitor

Run on Custom Port

Set the PORT environment variable and match the -p mapping:

docker run -d \
  --name betterdb-monitor \
  -p 8080:8080 \
  -e PORT=8080 \
  -e DB_HOST=your-valkey-host \
  betterdb/monitor

Run with Host Network (Access localhost services)

If your Valkey and PostgreSQL are running on the same host:

docker run -d \
  --name betterdb-monitor \
  --network host \
  -e DB_HOST=localhost \
  -e DB_PORT=6380 \
  -e DB_PASSWORD=devpassword \
  -e STORAGE_TYPE=postgres \
  -e STORAGE_URL=postgresql://dev:devpass@localhost:5432/postgres \
  betterdb/monitor

Environment Variables

Full reference, including AI, OTLP export, webhook tuning, and health-gate thresholds: docs/configuration.md.

Licensing & Air-Gapped Support

BetterDB Monitor unlocks Pro/Enterprise features in one of two ways, depending on whether the host has internet access:

• Online license key - set BETTERDB_LICENSE_KEY. The monitor validates it against betterdb.com and caches a locally-verified signed token, so your tier keeps working through short outages and restarts.
• Offline / air-gapped license token - for hosts with no internet access at all (see below).

How air-gapped licensing works

Every entitlement is a signed RS256 JWT. The monitor verifies it locally against public keys embedded in the image - it never has to reach a license server to trust a token. So an air-gapped host can run paid tiers with zero connectivity:

1. On an internet-connected machine, sign in at betterdb.com/account/licenses and download your offline license token (.jwt, Pro/Enterprise). It contains no secrets and can't be tampered with - any edit breaks the signature.
2. Transfer it to the air-gapped host however you like (USB, config management, a Docker/Kubernetes secret mount).
3. Provide it via BETTERDB_OFFLINE_LICENSE_FILE (path), BETTERDB_OFFLINE_LICENSE (inline string), or paste it in the UI under Settings → License → "Air-gapped environment? Activate an offline license."

When an offline token is configured and no BETTERDB_LICENSE_KEY is set, the monitor makes zero outbound requests - license checks, telemetry, and update pings are all disabled. It runs the granted tier until the token expires (perpetual licenses re-download yearly), then reverts to Community.

# fully offline - no network required
docker volume create betterdb-data
docker run --rm -v betterdb-data:/d alpine chown 1001:1001 /d   # volume writable by UID 1001 (one-time)
docker run -d --name betterdb-monitor -p 3001:3001 \
  -e DB_HOST=your-valkey-host -e DB_PORT=6379 -e DB_PASSWORD=your-password \
  -v /path/to/betterdb-license.jwt:/run/secrets/betterdb-license.jwt:ro \
  -e BETTERDB_OFFLINE_LICENSE_FILE=/run/secrets/betterdb-license.jwt \
  -v betterdb-data:/app/data \
  betterdb/monitor

Verify with GET /api/license/status → source: offline-token, mode: offline, airGapped: true.

Persistence: mount a writable volume at /app/data so the offline license and the online outage-grace token survive restarts. The container runs as UID 1001, so a freshly-created volume must be chowned to it (shown above) - otherwise persistence fails with EACCES … license.jwt.

For the full flow, verification precedence, and key-rotation runbook see Offline & Air-Gapped Licenses and the Configuration reference.

Docker Image Details

• Base Image: node:20-alpine
• Compressed size: ~360MB (latest / -no-ai) / ~640MB (versioned image with the experimental AI Helper's local-LLM dependencies)
• Platforms: linux/amd64, linux/arm64
• Contains: Backend API + Frontend static files (served by Fastify)
• Excluded: SQLite support (use PostgreSQL or Memory storage)

Container Operations

docker logs -f betterdb-monitor        # follow logs
docker stop betterdb-monitor           # stop
docker rm betterdb-monitor             # remove

Storage Backends

BetterDB Monitor persists audit trail, analytics, captures, and anomaly data to one of three backends:

Prometheus Metrics

Metrics are exposed at GET /api/prometheus/metrics in Prometheus text format: ACL audit, client connections, slowlog/commandlog patterns, memory, throughput, keyspace, replication, cluster slot stats, and Node.js runtime metrics - all prefixed betterdb_.

scrape_configs:
  - job_name: 'betterdb-monitor'
    metrics_path: '/api/prometheus/metrics'
    static_configs:
      - targets: ['your-monitor-host:3001']

Full metric reference: docs/prometheus-metrics.md and docs/prometheus-integration.md.

Development

Project Structure

betterdb-monitor/
├── apps/
│   ├── api/                 # NestJS backend (Fastify)
│   └── web/                 # React frontend (Vite)
├── packages/                # Published packages (see below)
├── docs/                    # Documentation site (Jekyll)
├── docker-compose.yml       # Local Valkey (port 6380) and Redis (port 6382) for testing
└── package.json             # Workspace root

Packages

This monorepo ships several standalone packages. See packages/ for the full list.

Tech Stack

• Backend: NestJS with Fastify adapter, iovalkey for Valkey/Redis connections, TypeScript strict mode. Port 3001.
• Frontend: React + TypeScript, Vite, TailwindCSS, Recharts. Dev server on port 5173.
• Monorepo: pnpm workspaces + Turborepo.

Local Setup

Prerequisites: Node.js >= 20.0.0, pnpm >= 9.0.0, Docker.

pnpm install
cp .env.example .env
pnpm docker:dev        # local Valkey (6380) and Redis (6382)
pnpm dev               # web on :5173, api on :3001

To connect to Redis instead of Valkey, set DB_PORT=6382 in .env.

pnpm dev:api           # API only
pnpm dev:web           # frontend only
pnpm docker:dev:down   # stop local databases
pnpm build             # production build
pnpm test              # API tests

Docker image builds:

pnpm docker:build      # local build
pnpm docker:publish    # multi-arch build & push (requires buildx)

Adding New Features

1. Add new endpoints in apps/api/src/
2. Add corresponding API calls in apps/web/src/api/
3. Add shared types in packages/shared/src/types/

Code Style

• TypeScript strict mode, explicit return types, no any
• ESLint + Prettier configured

License

• Content under docs/ is licensed under CC BY-SA 4.0.
• Content under proprietary/ is covered by a commercial license (see proprietary/LICENSE). These features are free during early access.
• Everything else is MIT.