LangChain incident

Performance degradation of legacy storage cluster

Minor Resolved View vendor source →

LangChain experienced a minor incident on June 10, 2026 affecting LangSmith API and LangSmith Application, lasting —. The incident has been resolved; the full update timeline is below.

Started
Jun 10, 2026, 01:49 PM UTC
Resolved
Jun 10, 2026, 01:49 PM UTC
Duration
—
Detected by Pingoru
Jun 10, 2026, 01:49 PM UTC

Affected components

LangSmith APILangSmith Application

Update timeline

  1. investigating Jun 10, 2026, 12:41 PM UTC

    Status: Investigating We are experiencing a performance degradation in one of our legacy storage clusters after a recent version update. This could lead to timeouts when querying trace information. Work is underway to revert the update. Ingestion of trace data is not impacted. Affected components LangSmith API (Degraded performance) LangSmith Application (Degraded performance)

  2. monitoring Jun 10, 2026, 01:39 PM UTC

    Status: Monitoring The rollback of the legacy storage cluster is mostly complete, and request latencies have largely normalized. Affected components LangSmith API (Degraded performance) LangSmith Application (Degraded performance)

  3. resolved Jun 10, 2026, 01:49 PM UTC

    Status: Resolved The rollback is complete, and our latency readings are back to nominal levels. Affected components LangSmith API (Operational) LangSmith Application (Operational)