Is tracing work behind proxy?

[qlibp]

receive the following warning

Transient error StatusCode.DEADLINE_EXCEEDED encountered while exporting traces to localhost:4317, retrying in 1s.
WARNING: All log messages before absl::InitializeLog() is called are written to STDERR
E0000 00:00:1740464721.598735   33544 http_connect_handshaker.cc:114] HTTP proxy handshake with ipv4:172.18.100.92:8080 failed: UNKNOWN: HTTP proxy returned response code 504 [type.googleapis.com/grpc.status.time.created_time='2025-02-25T06:25:21.59869888+00:00']
Transient error StatusCode.UNAVAILABLE encountered while exporting traces to localhost:4317, retrying in 2s.
Transient error StatusCode.UNAVAILABLE encountered while exporting traces to localhost:4317, retrying in 4s.
Transient error StatusCode.UNAVAILABLE encountered while exporting traces to localhost:4317, retrying in 8s.
Transient error StatusCode.UNAVAILABLE encountered while exporting traces to localhost:4317, retrying in 16s.
Transient error StatusCode.UNAVAILABLE encountered while exporting traces to localhost:4317, retrying in 32s.

[dosubot[bot]]

The warning messages you're encountering indicate issues with exporting traces through a proxy. Specifically, the StatusCode.DEADLINE_EXCEEDED and StatusCode.UNAVAILABLE errors suggest that the trace exporter is unable to communicate with the endpoint, likely due to proxy configuration issues.

Here are a few steps you can take to troubleshoot and resolve these issues:

1. Proxy Configuration: Ensure that your proxy settings are correctly configured. This might involve setting environment variables like http_proxy and https_proxy to point to your proxy server.

2. Network Connectivity: Verify that the proxy server is reachable from your network and that there are no firewall rules blocking the connection.

3. Timeout Settings: The default timeout for trace exports is 5 seconds ^[1]. You might need to adjust this setting if your network latency is high.

4. Retry Mechanism: The increasing retry intervals suggest a backoff strategy is in place. Ensure that your network and proxy can handle these retries without dropping connections.

5. Debugging: Enable detailed logging to get more insights into the issue. You can set the log level to DiagLogLevel.DEBUG for more verbose output, which can help in diagnosing the problem ^[2][3].

If these steps do not resolve the issue, you may need to consult the documentation for your specific OpenTelemetry setup or proxy server for additional configuration options.

To continue talking to Dosu, mention @dosu.

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[qlibp]

remember to set no_proxy