[{"id":"IL-0023","title":{"en":"A training run crashed with an NCCL timeout after one InfiniBand port went down once and recovered","ko":"InfiniBand 포트 하나가 한 번 내려갔다 복구되면서 7시간째 돌던 학습 작업이 NCCL 타임아웃으로 죽었다"},"org":"Databricks","org_slug":"databricks","date":"2026-07-01","severity":"unknown","root_cause":"dependency-failure","url":"https://benchlet.com/incidentlib/app/cases/IL-0023","shared_components":["infiniband","nccl"]},{"id":"IL-0025","title":{"en":"Failed boots, InfiniBand link flapping, NCCL hangs and throughput sags while bringing up a 4,088-GPU H100 training cluster","ko":"H100 4,088개 클러스터를 구축하는 동안 InfiniBand 배선 오류, 링크 플래핑, GPU 와 PCIe 하드웨어 결함이 학습을 멈추거나 늦췄다"},"org":"Imbue","org_slug":"imbue","date":"2024-06-25","severity":"unknown","root_cause":"dependency-failure","url":"https://benchlet.com/incidentlib/app/cases/IL-0025","shared_components":["infiniband","nccl"]},{"id":"IL-0133","title":{"en":"A storm shut down cooling at Nebius's us-central1 data center, and a disk hot-plug bug kept Managed Kubernetes control planes down for hours after power returned","ko":"폭풍으로 데이터센터 냉각이 멈춰 us-central1 리전 전체가 내려갔고, 디스크 핫플러그 버그로 Managed Kubernetes 컨트롤 플레인 약 140개의 복구가 길어졌다."},"org":"Nebius","org_slug":"nebius","date":"2026-08-19","severity":"unknown","root_cause":"dependency-failure","url":"https://benchlet.com/incidentlib/app/cases/IL-0133","shared_components":["infiniband"]},{"id":"IL-0134","title":{"en":"A power event at Lambda's AUS01 data center rebooted 246 GPU nodes, all spine switches and the VAST storage, failing customer workloads and leaving stale NFS mounts on VMs","ko":"AUS01 데이터센터에 전력 문제가 생겨 GPU 노드 246대와 스파인 스위치, VAST 스토리지가 한꺼번에 재부팅됐고, 워크로드가 실패하고 NFS 마운트가 끊겼다."},"org":"Lambda","org_slug":"lambda","date":"2026-02-14","severity":"sev1","root_cause":"dependency-failure","url":"https://benchlet.com/incidentlib/app/cases/IL-0134","shared_components":["infiniband"]}]