Azure Monitor diagnostic logs are logs emitted by Azure services that describe the operation of those services or resources. All diagnostic logs available through Azure Monitor share a common top-level schema, with flexibility for each service to emit unique properties for their own events.
But Azure SignalR Service doesn't provide Diagnostic or Logs. This service has two items under Monitoring and these are Alerts & Metrics. It's shown below -
Diagnostic settings and Logs are missing in Azure SignalR Service. Is there any specific reason? It can be As designed by Microsoft, Diagnostic or Logs may not be required but why? There are several Azure services with logs like Cognitive Services, Recovery Services, Analysis Services etc. A typical Azure Service with Diagnostic settings or Logs looks like
