Technologies/Linkerd/linkerd_tcp_open
LinkerdLinkerdMetric

linkerd_tcp_open

[OpenMetrics V2] Total count of opened connections.
Dimensions:None
Available on:DatadogDatadog (1)
Interface Metrics (1)
DatadogDatadog
[OpenMetrics V2] Total count of opened connections.
Dimensions:None
Related Insights (1)
TCP Metrics Missing Application-Layer Failuresinfo

For non-HTTP protocols, Linkerd only reports TCP-level metrics (bytes, connections) without application-layer success/failure information. This makes debugging opaque protocols difficult as you only see connection state, not request outcomes.