Categories

Tag

langfuse

View Cards
Mode Paginated
Per page Per batch 48
AI Agents

How to migrate self-hosted Langfuse from v3 to v4

To migrate Langfuse v3 to v4 with Docker Compose, first upgrade ClickHouse to 26.4 while still on v3, back up PostgreSQL and ClickHouse, start v4 in dual write mode, backfill the history and cut over to events_only once every SDK is compatible. I tested it with 45,931 traces and three Python SDK versions.

22 min 9
Artificial Intelligence

LLM Observability: Traces, Costs, and Quality

LLM applications need three distinct observability planes: prompt and response traces for debugging hallucinations, per-token and per-feature cost tracking, and response quality evaluation. Mature tools like Langfuse, LangSmith, and Helicone cover all three planes with specific instrumentation.

7 min 256