opentelemetry.sdk.trace.export

class opentelemetry.sdk.trace.export.SpanExportResult(value)

Bases: Enum

An enumeration.

SUCCESS = 0

FAILURE = 1

class opentelemetry.sdk.trace.export.SpanExporter

Bases: object

Interface for exporting spans.

Interface to be implemented by services that want to export spans recorded in their own format.

To export data this MUST be registered to the :class`opentelemetry.sdk.trace.Tracer` using a SimpleSpanProcessor or a BatchSpanProcessor.

export(spans)

Exports a batch of telemetry data.

Parameters:

spans (Sequence[ReadableSpan]) – The list of opentelemetry.trace.Span objects to be exported

Return type:

SpanExportResult

Returns:

The result of the export

shutdown()

Shuts down the exporter.

Called when the SDK is shut down.

Return type:

None

force_flush(timeout_millis=30000)

Hint to ensure that the export of any spans the exporter has received prior to the call to ForceFlush SHOULD be completed as soon as possible, preferably before returning from this method.

Return type:

bool

class opentelemetry.sdk.trace.export.SimpleSpanProcessor(span_exporter, *, meter_provider=None)

Bases: SpanProcessor

Simple SpanProcessor implementation.

SimpleSpanProcessor is an implementation of SpanProcessor that passes ended spans directly to the configured SpanExporter.

on_start(span, parent_context=None)

Called when a opentelemetry.trace.Span is started.

This method is called synchronously on the thread that starts the span, therefore it should not block or throw an exception.

Parameters:

• span (Span) – The opentelemetry.trace.Span that just started.

• parent_context (Optional[Context]) – The parent context of the span that just started.

Return type:

None

on_end(span)

Called when a opentelemetry.trace.Span is ended.

This method is called synchronously on the thread that ends the span, therefore it should not block or throw an exception.

Parameters:

span (ReadableSpan) – The opentelemetry.trace.Span that just ended.

Return type:

None

shutdown()

Called when a opentelemetry.sdk.trace.TracerProvider is shutdown.

Return type:

None

force_flush(timeout_millis=30000)

Export all ended spans to the configured Exporter that have not yet been exported.

Parameters:

timeout_millis (int) – The maximum amount of time to wait for spans to be exported.

Return type:

bool

Returns:

False if the timeout is exceeded, True otherwise.

class opentelemetry.sdk.trace.export.BatchSpanProcessor(span_exporter, max_queue_size=None, schedule_delay_millis=None, max_export_batch_size=None, export_timeout_millis=None, *, meter_provider=None)

Bases: SpanProcessor

Batch span processor implementation.

BatchSpanProcessor is an implementation of SpanProcessor that batches ended spans and pushes them to the configured SpanExporter.

BatchSpanProcessor is configurable with the following environment variables which correspond to constructor parameters:

• OTEL_BSP_SCHEDULE_DELAY

• OTEL_BSP_MAX_QUEUE_SIZE

• OTEL_BSP_MAX_EXPORT_BATCH_SIZE

• OTEL_BSP_EXPORT_TIMEOUT

All the logic for emitting spans, shutting down etc. resides in the BatchProcessor class.

property span_exporter

on_start(span, parent_context=None)

Called when a opentelemetry.trace.Span is started.

This method is called synchronously on the thread that starts the span, therefore it should not block or throw an exception.

Parameters:

• span (Span) – The opentelemetry.trace.Span that just started.

• parent_context (Optional[Context]) – The parent context of the span that just started.

Return type:

None

on_end(span)

Called when a opentelemetry.trace.Span is ended.

This method is called synchronously on the thread that ends the span, therefore it should not block or throw an exception.

Parameters:

span (ReadableSpan) – The opentelemetry.trace.Span that just ended.

Return type:

None

shutdown()

Called when a opentelemetry.sdk.trace.TracerProvider is shutdown.

force_flush(timeout_millis=None)

Export all ended spans to the configured Exporter that have not yet been exported.

Parameters:

timeout_millis (Optional[int]) – The maximum amount of time to wait for spans to be exported.

Return type:

bool

Returns:

False if the timeout is exceeded, True otherwise.

class opentelemetry.sdk.trace.export.ConsoleSpanExporter(service_name=None, out=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>, formatter=<function ConsoleSpanExporter.<lambda>>)

Bases: SpanExporter

Implementation of SpanExporter that prints spans to the console.

This class can be used for diagnostic purposes. It prints the exported spans to the console STDOUT.

export(spans)

Exports a batch of telemetry data.

Parameters:

spans (Sequence[ReadableSpan]) – The list of opentelemetry.trace.Span objects to be exported

Return type:

SpanExportResult

Returns:

The result of the export

force_flush(timeout_millis=30000)

Hint to ensure that the export of any spans the exporter has received prior to the call to ForceFlush SHOULD be completed as soon as possible, preferably before returning from this method.

Return type:

bool