Telemetry gRPC ingest breaks UI but still is exposed #31

New Issue

MrUnknownDE · 2026-04-05T16:18:43+02:00

MrUnknownDE commented

2026-04-05 16:18:43 +02:00

Originally created by @golyalpha on 3/14/2026

Describe the bug
When ingesting telemetry (on OneUptime Open Source) via the gRPC endpoint of the cluster-internal service, UIs that handle traces tend to break (page goes white and a bad route exception is logged - it seems things like trace IDs are sent to the frontend as bytes, rather than hex-encoded strings)

Tested with Python instrumentation, exporter version 1.39.1

To Reproduce
Steps to reproduce the behavior:

Send traces to OneUptime's Telemetry service via the gRPC endpoint
Try to open traces view, open log details, or set up a traces monitor
After trace data loads the page goes blank

Expected behavior
Either:
Traces from the gRPC endpoint should be transformed so the UI can handle them correctly
The gRPC endpoint should probably not be exposed at all - even via the cluster-internal service.

Desktop (please complete the following information):

OS: Win11
Browser Brave
Version 1.88.130

Deployment Type
Self-hosted

*Originally created by @golyalpha on 3/14/2026* **Describe the bug** When ingesting telemetry (on OneUptime Open Source) via the gRPC endpoint of the cluster-internal service, UIs that handle traces tend to break (page goes white and a bad route exception is logged - it seems things like trace IDs are sent to the frontend as bytes, rather than hex-encoded strings) Tested with Python instrumentation, exporter version 1.39.1 **To Reproduce** Steps to reproduce the behavior: 1. Send traces to OneUptime's Telemetry service via the gRPC endpoint 2. Try to open traces view, open log details, or set up a traces monitor 3. After trace data loads the page goes blank **Expected behavior** Either: Traces from the gRPC endpoint should be transformed so the UI can handle them correctly The gRPC endpoint should probably not be exposed at all - even via the cluster-internal service. **Desktop (please complete the following information):** - OS: Win11 - Browser Brave - Version 1.88.130 **Deployment Type** Self-hosted

MrUnknownDE added the bug bug bug bug bug bug labels 2026-04-05 16:18:44 +02:00

MrUnknownDE referenced this issue

2026-04-05 16:38:58 +02:00

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Reference: github/oneuptime#31