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SigNoz on ObsessionDB

Run SigNoz on scale with ObsessionDB or Clickhouse Cloud.

Quick Start

# 1. Configure connection
cp .env.example .env
# Edit .env with your ObsessionDB/ClickHouse Cloud credentials

# 2. Start services
docker compose up -d

# 3. Open UI
open http://localhost:8081

Send Telemetry

# OTLP gRPC
export OTEL_EXPORTER_OTLP_ENDPOINT=http://localhost:4317

# OTLP HTTP
curl -X POST http://localhost:4318/v1/traces -H "Content-Type: application/json" -d @trace.json

Architecture

Your Applications (OpenTelemetry instrumented)
                │
                ▼ OTLP
┌───────────────────────────────┐
│     OTEL Collector            │  localhost:4317 (gRPC)
│     Batches & exports         │  localhost:4318 (HTTP)
└───────────────┬───────────────┘
                │ Native TCP (port 9440)
                ▼
┌───────────────────────────────┐
│  ObsessionDB / ClickHouse     │
│  SharedMergeTree tables       │
│  - distributed_logs_v2        │
│  - distributed_signoz_spans   │
│  - distributed_samples_v4     │
└───────────────▲───────────────┘
                │ Native TCP
                │
┌───────────────┴───────────────┐
│     SigNoz Query Service      │  localhost:8081
│     UI + API                  │
└───────────────────────────────┘

How It Works

SigNoz expects a sharded ClickHouse cluster with local + distributed tables. SharedMergeTree (ObsessionDB/ClickHouse Cloud) doesn't use this sharding.

We forked the signoz-otel-collector schema-migrator that creates:

• distributed_* tables as SharedMergeTree (OTEL writes here)
• Local table names as VIEWs pointing to distributed tables (SigNoz reads here)

Components

Component	Image	Purpose
signoz	signoz/signoz	Query service + UI
schema-migrator	ghcr.io/obsessiondb/signoz-schema-migrator	Creates tables + VIEWs
otel-collector	signoz/signoz-otel-collector	Receives telemetry

Configuration

See .env.example for connection settings.

Links

• ObsessionDB - Managed SharedMergeTree
• SigNoz - Open source observability
• Schema Migrator Fork - SharedMergeTree support

License

Apache 2.0