How can I configure OpenTelemetry to ​​disable Span creation​​ and ​​only collect Metrics​​ (without Traces or Logs)?

Describe your environment

OS: linux
Python version: Python 3.11

How can I configure OpenTelemetry to ​​disable Span creation​​ and ​​only collect Metrics​​ (without Traces or Logs)?

What happened?

During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.10/site-packages/tornado/web.py", line 1839, in _handle_request_exception
self.log_exception(*sys.exc_info())
File "/otel-auto-instrumentation/wrapt/wrappers.py", line 670, in call
return self._self_wrapper(self.wrapped, self._self_instance,
File "/otel-auto-instrumentation/opentelemetry/instrumentation/tornado/init.py", line 442, in _log_exception
_record_on_finish_metrics(server_histograms, handler, error)
File "/otel-auto-instrumentation/opentelemetry/instrumentation/tornado/init.py", line 635, in _record_on_finish_metrics
server_histograms[MetricInstruments.HTTP_SERVER_RESPONSE_SIZE].record(
File "/otel-auto-instrumentation/opentelemetry/sdk/metrics/_internal/instrument.py", line 264, in record
self._measurement_consumer.consume_measurement(
File "/otel-auto-instrumentation/opentelemetry/sdk/metrics/_internal/measurement_consumer.py", line 82, in consume_measurement
self._sdk_config.exemplar_filter.should_sample(
File "/otel-auto-instrumentation/opentelemetry/sdk/metrics/_internal/exemplar/exemplar_filter.py", line 131, in should_sample
span = trace.get_current_span(context)
File "/otel-auto-instrumentation/opentelemetry/trace/propagation/init.py", line 48, in get_current_span
span = get_value(_SPAN_KEY, context=context)
File "/otel-auto-instrumentation/opentelemetry/context/init.py", line 97, in get_value
return context.get(key) if context is not None else get_current().get(key)
AttributeError: 'NoneType' object has no attribute 'get'
500 GET /health (10.231.248.38) 1.15ms
Uncaught exception in write_error
Traceback (most recent call last):
File "/usr/local/lib/python3.10/site-packages/tornado/web.py", line 1767, in _execute
result = self.prepare()
File "/otel-auto-instrumentation/wrapt/wrappers.py", line 670, in call
return self._self_wrapper(self.wrapped, self._self_instance,
File "/otel-auto-instrumentation/opentelemetry/instrumentation/tornado/init.py", line 413, in _prepare
ctx = _start_span(tracer, handler)
File "/otel-auto-instrumentation/opentelemetry/instrumentation/tornado/init.py", line 522, in _start_span
span, token = _start_internal_or_server_span(
File "/otel-auto-instrumentation/opentelemetry/instrumentation/utils.py", line 147, in _start_internal_or_server_span
span = tracer.start_span(
File "/otel-auto-instrumentation/opentelemetry/sdk/trace/init.py", line 1118, in start_span
parent_span_context = trace_api.get_current_span(
File "/otel-auto-instrumentation/opentelemetry/trace/propagation/init.py", line 48, in get_current_span
span = get_value(_SPAN_KEY, context=context)
File "/otel-auto-instrumentation/opentelemetry/context/init.py", line 97, in get_value
return context.get(key) if context is not None else get_current().get(key)
AttributeError: 'NoneType' object has no attribute 'get'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.10/site-packages/tornado/web.py", line 1298, in send_error
self.write_error(status_code, **kwargs)
File "/usr/local/lib/python3.10/site-packages/tornado/web.py", line 1323, in write_error
self.finish(
File "/usr/local/lib/python3.10/site-packages/tornado/web.py", line 1242, in finish
self.on_finish()
File "/otel-auto-instrumentation/wrapt/wrappers.py", line 670, in call
return self._self_wrapper(self.wrapped, self._self_instance,
File "/otel-auto-instrumentation/opentelemetry/instrumentation/tornado/init.py", line 423, in _on_finish
_record_on_finish_metrics(server_histograms, handler)
File "/otel-auto-instrumentation/opentelemetry/instrumentation/tornado/init.py", line 635, in _record_on_finish_metrics
server_histograms[MetricInstruments.HTTP_SERVER_RESPONSE_SIZE].record(
File "/otel-auto-instrumentation/opentelemetry/sdk/metrics/_internal/instrument.py", line 264, in record
self._measurement_consumer.consume_measurement(
File "/otel-auto-instrumentation/opentelemetry/sdk/metrics/_internal/measurement_consumer.py", line 82, in consume_measurement
self._sdk_config.exemplar_filter.should_sample(
File "/otel-auto-instrumentation/opentelemetry/sdk/metrics/_internal/exemplar/exemplar_filter.py", line 131, in should_sample
span = trace.get_current_span(context)
File "/otel-auto-instrumentation/opentelemetry/trace/propagation/init.py", line 48, in get_current_span
span = get_value(_SPAN_KEY, context=context)
File "/otel-auto-instrumentation/opentelemetry/context/init.py", line 97, in get_value
return context.get(key) if context is not None else get_current().get(key)
AttributeError: 'NoneType' object has no attribute 'get'
Exception in callback _HandlerDelegate.execute..(<Task finishe...ibute 'get'")>) at /usr/local/lib/python3.10/site-packages/tornado/web.py:2438
handle: <Handle _HandlerDelegate.execute..(<Task finishe...ibute 'get'")>) at /usr/local/lib/python3.10/site-packages/tornado/web.py:2438>
Traceback (most recent call last):
File "/usr/local/lib/python3.10/asyncio/events.py", line 80, in _run
self._context.run(self._callback, *self._args)
File "/usr/local/lib/python3.10/site-packages/tornado/web.py", line 2438, in
fut.add_done_callback(lambda f: f.result())
File "/otel-auto-instrumentation/opentelemetry/instrumentation/asyncio/init.py", line 314, in trace_coroutine
self.record_process(start, attr, span, exception)
File "/otel-auto-instrumentation/opentelemetry/instrumentation/asyncio/init.py", line 358, in record_process
self.process_duration_histogram.record(duration, attr)
File "/otel-auto-instrumentation/opentelemetry/sdk/metrics/_internal/instrument.py", line 264, in record
self._measurement_consumer.consume_measurement(
File "/otel-auto-instrumentation/opentelemetry/sdk/metrics/_internal/measurement_consumer.py", line 82, in consume_measurement
self._sdk_config.exemplar_filter.should_sample(
File "/otel-auto-instrumentation/opentelemetry/sdk/metrics/_internal/exemplar/exemplar_filter.py", line 131, in should_sample
span = trace.get_current_span(context)
File "/otel-auto-instrumentation/opentelemetry/trace/propagation/init.py", line 48, in get_current_span
span = get_value(_SPAN_KEY, context=context)
File "/otel-auto-instrumentation/opentelemetry/context/init.py", line 97, in get_value
return context.get(key) if context is not None else get_current().get(key)
AttributeError: 'NoneType' object has no attribute 'get'
Error in exception logger
Traceback (most recent call last):
File "/usr/local/lib/python3.10/site-packages/tornado/web.py", line 1767, in _execute
result = self.prepare()
File "/otel-auto-instrumentation/wrapt/wrappers.py", line 670, in call
return self._self_wrapper(self.wrapped, self._self_instance,
File "/otel-auto-instrumentation/opentelemetry/instrumentation/tornado/init.py", line 413, in _prepare
ctx = _start_span(tracer, handler)
File "/otel-auto-instrumentation/opentelemetry/instrumentation/tornado/init.py", line 522, in _start_span
span, token = _start_internal_or_server_span(
File "/otel-auto-instrumentation/opentelemetry/instrumentation/utils.py", line 147, in _start_internal_or_server_span
span = tracer.start_span(
File "/otel-auto-instrumentation/opentelemetry/sdk/trace/init.py", line 1118, in start_span
parent_span_context = trace_api.get_current_span(
File "/otel-auto-instrumentation/opentelemetry/trace/propagation/init.py", line 48, in get_current_span
span = get_value(_SPAN_KEY, context=context)
File "/otel-auto-instrumentation/opentelemetry/context/init.py", line 97, in get_value
return context.get(key) if context is not None else get_current().get(key)
AttributeError: 'NoneType' object has no attribute 'get'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.10/site-packages/tornado/web.py", line 1839, in _handle_request_exception
self.log_exception(*sys.exc_info())
File "/otel-auto-instrumentation/wrapt/wrappers.py", line 670, in call
return self._self_wrapper(self.wrapped, self._self_instance,
File "/otel-auto-instrumentation/opentelemetry/instrumentation/tornado/init.py", line 442, in _log_exception
_record_on_finish_metrics(server_histograms, handler, error)
File "/otel-auto-instrumentation/opentelemetry/instrumentation/tornado/init.py", line 635, in _record_on_finish_metrics
server_histograms[MetricInstruments.HTTP_SERVER_RESPONSE_SIZE].record(
File "/otel-auto-instrumentation/opentelemetry/sdk/metrics/_internal/instrument.py", line 264, in record
self._measurement_consumer.consume_measurement(
File "/otel-auto-instrumentation/opentelemetry/sdk/metrics/_internal/measurement_consumer.py", line 82, in consume_measurement
self._sdk_config.exemplar_filter.should_sample(
File "/otel-auto-instrumentation/opentelemetry/sdk/metrics/_internal/exemplar/exemplar_filter.py", line 131, in should_sample
span = trace.get_current_span(context)
File "/otel-auto-instrumentation/opentelemetry/trace/propagation/init.py", line 48, in get_current_span
span = get_value(_SPAN_KEY, context=context)
File "/otel-auto-instrumentation/opentelemetry/context/init.py", line 97, in get_value
return context.get(key) if context is not None else get_current().get(key)
AttributeError: 'NoneType' object has no attribute 'get'

Steps to Reproduce

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Expected Result

none

Actual Result

none

Additional context

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Would you like to implement a fix?

None

Tip

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Start with opentelemetry/instrumentation/tornado/init.py around _start_span and _record_on_finish_metrics, then inspect sdk/metrics/_internal/exemplar/exemplar_filter.py and trace/propagation/init.py for the None context failure. Reproduce the reported Linux/Python setup if possible and establish whether metrics-only configuration can avoid the traceback while preserving metrics; done requires a confirmed configuration or clearly scoped fix.