#clickhouse

#clickhouse

By bringing Langfuse in-house, ClickHouse can offer customers a native way to collect, store, and analyze large volumes of LLM telemetry alongside operational and business data, helping teams debug models faster, control costs, and run more reliable AI workloads without relying on a separate observability tool, Tyagi added.

The default and most commonly used table engine in ClickHouse, MergeTree, is optimized for high-throughput batch inserts. It writes each insert as a separate partition, then runs background merges to keep data manageable. This makes writes very fast, but not when they arrive in lots of tiny batches, which was exactly our case with millions of individual devices uploading one log event every 2 minutes.