OpenTelemetry SDK
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    Variable METRIC_SIGNALR_SERVER_ACTIVE_CONNECTIONSConst

    METRIC_SIGNALR_SERVER_ACTIVE_CONNECTIONS: "signalr.server.active_connections" = ...

    Number of connections that are currently active on the server.

    Meter name: Microsoft.AspNetCore.Http.Connections; Added in: ASP.NET Core 8.0