[azure-core-tracing-opentelemetry] Exception while exporting Span batch

[aurelien-wefight]

• Package Name: azure-core-tracing-opentelemetry
• Package Version: 1.0.0b9
• Operating System: python:3.9-slim-buster
• Python Version: 3.9.13

Describe the bug
I try to implement opentelemetry like in your documentation: https://pypi.org/project/azure-core-tracing-opentelemetry/
But when I run the code, just before exporting spans,
I get the error:

Exception while exporting Span batch.
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/opentelemetry/sdk/trace/export/__init__.py", line 367, in _export_batch
    self.span_exporter.export(self.spans_list[:idx])  # type: ignore
  File "/usr/local/lib/python3.9/site-packages/opentelemetry/exporter/otlp/proto/grpc/trace_exporter/__init__.py", line 291, in export
    return self._export(spans)
  File "/usr/local/lib/python3.9/site-packages/opentelemetry/exporter/otlp/proto/grpc/exporter.py", line 293, in _export
    request=self._translate_data(data),
  File "/usr/local/lib/python3.9/site-packages/opentelemetry/exporter/otlp/proto/grpc/trace_exporter/__init__.py", line 277, in _translate_data
    f"SPAN_KIND_{sdk_span.kind.name}",
AttributeError: 'NoneType' object has no attribute 'name'

To Reproduce
Steps to reproduce the behavior:

1. Write python code:

import os

from azure.storage.blob import BlobServiceClient
from azure.core.settings import settings
from azure.core.tracing.ext.opentelemetry_span import OpenTelemetrySpan

settings.tracing_implementation = OpenTelemetrySpan

connect_str = os.getenv("AZURE_STORAGE_CONNECTION_STRING")
_blob_service_client = (
    BlobServiceClient.from_connection_string(connect_str) if connect_str else None
)

container = "XXX"
key = "XXX.pkl"

blob_client = _blob_service_client.get_blob_client(container=container, blob=key)
blob_client.download_blob().readall()

Command:

opentelemetry-instrument --metrics_exporter none --logs_exporter none --traces_exporter otlp_proto_grpc --exporter_otlp_traces_insecure true python3 main.py

If I comment settings.tracing_implementation = OpenTelemetrySpan

• readall works well without error
• Instrumentation works with another module like Flask.

Expected behavior
I wan't to have spans generated

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
My requirements:

azure-core==1.13.0
azure-core-tracing-opentelemetry==1.0.0b9
azure-storage-blob==12.8.1
opentelemetry-api==1.12.0rc2
opentelemetry-distro==0.32b0
opentelemetry-exporter-otlp-proto-grpc==1.12.0rc2
opentelemetry-instrumentation==0.32b0
opentelemetry-instrumentation-urllib==0.32b0
opentelemetry-instrumentation-wsgi==0.32b0
opentelemetry-sdk==1.12.0rc2
opentelemetry-semantic-conventions==0.32b0
opentelemetry-util-http==0.32b0
urllib3==1.26.4

[mccoyp]

Hi @aurelien-wefight, thank you for opening an issue! I'll tag the appropriate folks so we can look into this as soon as possible.

[aurelien-wefight]

Hi @mccoyp ,

If it can help you, I add OpenTelemetrySpanKind.INTERNAL if value is None else inside the init function of OpenTelemetrySpan class, and now it works... But I don't know if it's the best idea !

[xiangyan99]

@aurelien-wefight Thanks for the information. Could you help to try latest azure-core?

It looks to me #24492 could be the fix.

[rakshith91]

@aurelien-wefight Thanks for the issue - like @xiangyan99 mentioned, I believe it should be fixed with the latest azure-core where span kind is internal by default.
And yes, OpenTelemetrySpanKind.INTERNAL if value is None else should be good (azure-core does that for you now)

[aurelien-wefight]

Hi @xiangyan99 and @rakshith91 !
Thank you for your replies. I didn't think to check my azure-core version and the latest version 🤦
I confirm that it works now.

Sorry for the inconvenience