OpenTelemetry (gRPC) Input is listening on UDP instead of TCP

[nomorsug]

Expected Behavior

gRPC works over TCP

Current Behavior

From the UI:

This Input is listening for: UDP Traffic.

OTLP collection is unable to connect to send data

Possible Solution

Steps to Reproduce (for bugs)

Enable OpenTelemetry (gRPC) Input

Context

Your Environment

• Graylog Version: 6.2.2+13ba949
• Java Version: 17.0.15
• OpenSearch Version:
• MongoDB Version:
• Operating System:
• Browser version:

[bernd]

The input is actually listening on TCP, but the input diagnosis page shows UDP. We need to figure out why that is.