Error3 reports
Fix ObjectLostError
in Ray
✅ Solution
ObjectLostError usually means a Ray worker node holding an object died, causing the object to be lost from the object store. To fix this, ensure sufficient resources and stability in your Ray cluster to prevent worker node failures. Implement object spilling to disk or object replication across multiple nodes for fault tolerance to persist data even if a worker fails.
Related Issues
Real GitHub issues where developers encountered this error:
Timeline
First reported:Dec 5, 2025
Last reported:Dec 18, 2025