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v1.0.0-alpha.2

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@killme2008 killme2008 released this 21 Jun 18:24
· 9 commits to main since this release
v1.0.0-alpha.2
b46fce7

Second alpha. This release focuses on ingestion throughput and correctness on the GreptimeDB write path. The product, public APIs, SDKs, and read-path parity are unchanged from v1.0.0-alpha.1 (still based on upstream Langfuse v3.184.1).

Highlights

  • Faster, stall-free ingestion drain. The live drain no longer stalls under load and is ~4× faster (~27 → ~108 traces/s in our 60k-trace benchmark). Three independent fixes: the protobuf encode + gRPC write moved to a worker_threads pool (off the worker event loop that was starving every job's raw_events read); a table-scoped raw_events flush keeps the per-event point read on prunable SSTs (~20× faster read); and a per-entity Redis watermark coalesces redundant rebuilds when draining a backlog.
  • No-delete EAV writes. The per-rebuild EAV DELETE is replaced by a read-time generation filter — reads keep only an entity's current generation, so a dropped key is excluded without a delete. Less write amplification on a single GreptimeDB.
  • Correctness fixes.
    • EAV generation is now unique within a millisecond — a same-millisecond re-append could otherwise collide and leave a stale EAV key visible.
    • Cold start no longer leaves observation cost empty: the worker waits for the schema/model-price seeding before it begins ingesting, so generations always get their cost computed.
    • The Sessions list query no longer 500s — the session_tags subquery now projects eav_generation so the generation-correlated tag join resolves.

For measured drain / query-latency / storage numbers vs upstream Langfuse on ClickHouse, see the benchmark report; for the new tuning knobs see operations.

Images

Published to Docker Hub, all tagged 1.0.0-alpha.2:

This is a pre-release, so latest does not move — pin the explicit tag.

Quickstart

git clone https://github.com/tma1-ai/openfuse.git
cd openfuse
git checkout v1.0.0-alpha.2
cp .env.quickstart.example .env
docker compose -f docker-compose.standalone.yml up -d

Full changelog: v1.0.0-alpha.1...v1.0.0-alpha.2

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