PAI-DLC Job Diagnostics and Health Inspection Read-only diagnostic analysis for PAI-DLC distributed training jobs, covering three scenarios: - Queuing-stuck root cause analysis — quota check, node scheduling diagnosis, hyper-node availability - Failed-job localization — failure classification, logs/events evidence chain, root cause identification - Cluster health inspection — training throughput, hang detection, SanityCheck, restart stability Architecture : PAI-DLC Job (read-only queries) + PAI Studio Resource Diagnosis API (queuing scenario). 0. Dependencies This skill performs read-only dia…