Are you trying out the sample app or are you instrumenting your own application? Can you share more details about the application / framework / library details and how you are running it? Can you try using the
console
exporter and confirm it emits the telemetry to stdout?
SigNoz is an open-source APM. It helps developers monitor their applications & troubleshoot problems, an open-source alternative to DataDog, NewRelic, etc.