* Ensure that no-op tracer still progates non-recording spans
Signed-off-by: Anthony J Mirabella <a9@aneurysm9.com>
* Add `TracerProvider` to the `trace.Span` interface
Signed-off-by: Anthony J Mirabella <a9@aneurysm9.com>
* Remove config from oteltest.Tracer as it can be accessed through the provider
Signed-off-by: Anthony J Mirabella <a9@aneurysm9.com>
Test the export timeout by waiting indefinitely for the export to
timeout instead of having a second timer, in its own goroutine, timeout.
The algorithm this replaces fails on machines that are slow and the one
meta-timer is given priority to progress over the export timer that is
being testing, resulting in a false-negative test result.
Move the testing of a BatchSpanProcessor export timeout to its own test
function. This removes the bloat this introduces to the other testing
options and allows customization that enable the testing in a
deterministic manner.
This implements specification requirement:
https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/resource/sdk.md#resource-creation
- Changes `resource.NewWithAttributes` to require a schema URL. The old function
is still available as `resource.NewSchemaless`. This is a breaking change.
We want to encourage using schema URL and make it a conscious choice to have a
resource without schema.
- Merge schema URLs acccording to the spec in resource.Merge.
- Several builtin resource detectors now correctly populate the schema URL.
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
This adds support for schema URL to the Tracer according to the specification:
https://github.com/open-telemetry/opentelemetry-specification/pull/1666
(Link to replaced by the link to the spec after that PR is merged)
For the future: once the proto is updated we will need to populate the
schema_url field in the messages.
* Refactor TraceState
* Update tracecontext propagator to use new TraceState
* Add TraceStateFromKeyValues to oteltest
* Use oteltest to test TraceState
* Replace IsEmpty with Len for TraceState
* Replace ParseTraceState with ParseTraceStateString
* Clean up naming
* Add immutability test for TraceState
* Add changes to changelog
* Fixes
* Document argument type change in changelog
* Address feedback
Remove circularity of TestTraceStateLen.
* Remove TODO from ReadOnlySpan interface
* Remove the Tracer method from the ReadOnlySpan
This is not required by the specification nor the use of this interface.
* Remove IsRecording from the ReadOnlySpan interface
A read-only span value does not need to know if updates to it will be
recorded. It by definition cannot be updated so no point in
communicating if an update would be recorded.
* Document the ReadOnlySpan interface
* Rename messageEvent* to just event*
* Move the SpanSnapshot into its own file
* Update ReadOnlySpan interface with meta info methods
Add the DroppedAttributes, DroppedLinks, DroppedEvents, and
ChildSpanCount methods to the interface to return additional information
about the span not specified by the specification, but that we are
already providing.
* Add SpanStub to the sdk/trace/tracetest pkg
* Redefine ExportSpans of SpanExporter with ReadOnlySpan
* Rename SpanSnapshot to snapshot and purge docs
* Remove Snapshot method from snapshot type
This method is a hold-over from previous version of the ReadOnlySpan
interface is not needed.
* Update CHANGELOG with changes
Add Status type to SDK
Use this type to encapsulate the Span status similar to the Event type
encapsulating a Span event and the Link type a span link.
Co-authored-by: Anthony Mirabella <a9@aneurysm9.com>
* Move the Event type from the API to the SDK
This type is not used in the API. It is used in the SDK and then through
the processing pipelines. Move it to the package that originates its use.
* Add changes to changelog
* Update CHANGELOG.md
Co-authored-by: Gustavo Silva Paiva <guustavo.paiva@gmail.com>
Co-authored-by: Gustavo Silva Paiva <guustavo.paiva@gmail.com>
* drop failed to exporter batches and return error when forcing flush a span processor
* changelog
* changelog
* change should export condition
* cleanup
* Honor context Done in SSP Shutdown
* Update PR number in changelog
* Update comment
* Add tests
* Make tests more concise
* Restructure tests for readability
* updated controller to merge default resource with environment resource
* updated TracerProvider to merge default resource with environment resource
* Added Changelog entry
* Added resource.Environment(), modified resource.Default() for environment vairable and WithResource() configuration for TracerProvider and Controller
* Update CHANGELOG.md
Co-authored-by: Anthony Mirabella <a9@aneurysm9.com>
* Moved environment detector to defaultResource initialization, added test cases
* Changes to default resource initialization
* made changes to the test cases
* added merging of resource with environment resource
Co-authored-by: Anthony Mirabella <a9@aneurysm9.com>
* Add SpanProcessor example for Span annotation on start
* Remove New* func to make more concise
* Add doc for AttrsFunc
* Move overview comment to top
* Update based on feedback
* Remove AttrsFunc type
* Use OnEnd to print instead of separate exporter
* Move the tracer declaration
* Add test to check bsp ignores OnEnd and ForceFlush post shutdown
* Add to CHANGELOG
* Check for err return value
* Stop test execution if there's error with shutting down bsp
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Use assert to check there's no error calling bsp.ForceFlush()
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Import require
* Add error message for assertion on be.len()
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Make TraceFlags spec-compliant
* Remove `trace.FlagsDebug` and `trace.FlagsDeferred`
* These are used only by the B3 propagator and will be handled there in the `context.Context`
* Make `trace.TraceFlags` a defined type, aliasing `byte`
* Move `IsSampled` method from `trace.SpanContext` to `trace.TraceFlags`
* Add `Sampled(bool)` method to `trace.TraceFlags`
* Implement `Stringer` and `json.Marshaler` for `trace.TraceFlags`
Signed-off-by: Anthony J Mirabella <a9@aneurysm9.com>
* Rename `TraceFlags.Sampled()` to `TraceFlags.WithSampled()` for consistency
* Restore `SpanContext.IsSampled()` method.
Signed-off-by: Anthony J Mirabella <a9@aneurysm9.com>
Adds support for the opentelemetry exceptions semantic conventions. In
short, this has RecordError produce an exception event with exception
attributes instead of using the error event and error attributes.
While golang does not have exceptions, the spec itself does not
differentiate between errors and exceptions for recording purposes.
RecordError was kept as the method name, both for backwards
compatibility and to reduce confusion (the method signature takes in a
golang error object). The spec appears to allow this, as it suggests the
method is optional and signature may reflect whatever is most appropriate
for the language implementing it.
It may seem non-intuitive to log an exception event from a method called
RecordError, but it's beneficial to have consistent behavior across all
opentelemetry SDKs. Downstream projects like the opentelemetry-collector
can build off of the published API and not special case behaviors from
individual languages.
* Adjust TestRecording fucntion to validate with and without sampling. correct span.isRecording logic to return false when not being sampled
* Changed to TestExectutionTracerTaskEnd to only expect 1 span to increment instead of all 3
* added changelog entry
* Updated CHANGELOG.md
* Remove newline from isRecording()
* Rewrite TestSpanIsRecording to include table based
tests and check for when span is ended immediately
* Update sdk/trace/trace_test.go
Improve readability of test name
Co-authored-by: Anthony Mirabella <a9@aneurysm9.com>
* Update sdk/trace/trace_test.go
Improve readability of test name
Co-authored-by: Anthony Mirabella <a9@aneurysm9.com>
* Update CHANGELOG.md
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Update sdk/trace_test.go test comments
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
Co-authored-by: Anthony Mirabella <a9@aneurysm9.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Update SamplingParameters
Remove HasRemoteParent fields from SamplingParameters. The
HasRemoteParent field is a duplicate of the Remote field of the parent
span context contained in the ParentContext.
Change the `ParentContext` field from storing a `SpanContext` to a
`context.Context` that holds the parent span. This is to conform with
the OpenTelemetry specification and resolve#1727.
* Update PR number
* Update SpanSnapshot to use parent SpanContext
Having only the parent span ID and a separate field to communicate if
the parent was remote does not provide a comprehensive view of the
parent span nor is it an efficient way to transmit this information.
Update the SpanSnapshot to have a `Parent` field that contains the
parent span context. This field replaces the ParentSpanID and
HasRemoteParent fields.
* Revert SamplingParameters span change
* Update CHANGELOG with PR number
* Store Span instead of local/remote SpanContext in Context
Now that the SpanContext has a remote identifier, storing a Span's
SpanContext two separate ways in a Context (one for local another for
remote) is unnecessary and adds complication throughout the project when
determining heredity of a Span. This moves to storing the Span directly
in the Context uniformly (for both local and remote) as current Span. In
the process, it updates the getter/setter functionality the `trace`
package provides and replaces the distributed heredity logic throughout
the project with just using the current Span as the parent if it exists.
* Update trace/context.go
Co-authored-by: Anthony Mirabella <a9@aneurysm9.com>
* Assert propagators context remote state
Co-authored-by: Anthony Mirabella <a9@aneurysm9.com>
* Remove links on NewRoot spans
To ensure forwards compatibility, remove the unspecified links currently
set on `NewRoot` spans.
Resolves#461
* Remove links from oteltest tracer to match
The makeSamplingDecision function is a wrapper around the provider
sampler calling ShouldSample with a duplicate configuration struct. That
duplication and need for translation as well as the addition function
call is unnecessary, this function is called in only one place.
Resolves#1706
This patch removes `ApplyConfig` method and `Config` struct from
`go.opentelemetry.io/otel/sdk/trace` package. To ensure valid config
for TracerProvider, it adds `ensureValidTracerProviderConfig` private
function.
Jaeger and Zipkin have been used the `Config` directly across package
boundaries. Since `Config` is removed, they can't use it. This change,
thus, replaces `WithSDK` with `WithSDKOptions`.
Resolves#1636, #1705.
* Rename WithDefaultSampler TracerProvider option to WithSampler
The term "DefaultSampler" comes from early ideas of this project where
there would be overriding samplers lower in the trace SDK. This
overriding does not exist and if it is going to be introduced in the
future the sampler associated with the TracerProvider is already scoped
based on that association (no need to scope with a name). This renames
the TracerProvider option to not include this anachronism.
* Update PR number in CHANGELOG
* Propagate rename
* Update defaults documentation for TracerProvider
* Update sdk/trace/provider.go
Co-authored-by: Steven E. Harris <seh@panix.com>
* Update sdk/trace/provider.go
Co-authored-by: Steven E. Harris <seh@panix.com>
* Add remote property to SpanContext
* Set SpanContext.remote when extracting context in TraceContext propagator
* Ensure remote flag is set when inserting remote SpanContext into context
* Ensure tests are expecting remote flag in SpanContext where appropriate
* Update CHANGELOG.md
* Apply PR feedback
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Add Valid method to KeyValue
* Use KeyValue.Valid in attribute add on Span
* Resource StringDetector errors for invalid attribute
* Ignore invalid attr in NewWithAttributes
The OpenTelemetry specification requires attributes conform to a
standard evaluated and returned by attribute.KeyValue.Valid. To comply
with the specification, Resources created from NewWithAttributes need to
only contain valid attributes. This adds a check to ensure this and
drops invalid attributes passed as arguments.
* Add changes to changelog
* Add nolint comment
The attribute.Set is (possibly overly) optimized to avoid allocations.
The returned value from the constructor is a value of a Set, not a
pointer to the Set. A Set contains a lock value and pointer methods so
passing the Set value raises the copylock go vet error. This copies the
same nolint comment from the `NewSet` method this used to use.
* Apply suggestions from code review
Co-authored-by: Sam Xie <xsambundy@gmail.com>
Co-authored-by: Sam Xie <xsambundy@gmail.com>
* Remove `WithRecord()` option from SpanConfig options
This brings the trace API into conformance with the specification.
* Add entry to CHANGELOG
Fixes#192
* Updated CHANGELOG with PR#
* Cleaned up CHANGELOG notes
* fixup! Merge remote-tracking branch 'upstream/main' into remove-with-record
* Use new spanContext API to set traceflags, tracestate
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Make SpanContext Immutable
* Adds NewSpanContext() constructor and SpanContextConfig{} struct for
constructing a new SpanContext when all fields are known
* Adds With<field>() methods to SpanContext for deriving a SpanContext
with a single field changed.
* Updates all uses of SpanContext to use the new API
Signed-off-by: Anthony J Mirabella <a9@aneurysm9.com>
* Update CHANGELOG.md
Signed-off-by: Anthony J Mirabella <a9@aneurysm9.com>
* Add tests for new SpanContext constructor and derivation
Signed-off-by: Anthony J Mirabella <a9@aneurysm9.com>
* Address PR feedback
* Fix new uses of SpanContext from main
* sdk/trace: add missing options to tracer provider
This change adds `WithDefaultSampler` and `WithSpanLimits` to the tracer
provider and removed `WithConfig` from it.
Before this change, `WithConfig` is the only way to set sampler or
limits of a span. However, it is prone to misuse, since `WithConfig` can
override tracing configurations that are configured by `WithResource` or
`WithIDGenerator`. Thus to fix this, it adds new functional options -
`WithDefaultSampler` and `WithSpanLimits` and removes `WithConfig`.
Resolves#1631.
* Update sdk/trace/provider.go
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Update sdk/trace/provider.go
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* rebase and remove WithConfig
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Add ForceFlush method to TracerProvider
The specification requires that a TracerProvider have a ForceFlush
method that can be set with a timeout, return any error to the caller,
and have all the registered span processors export their spans. This
updates the SpanProcessor.ForceFlush method to accept a context and
return an error and plumbs this method into a new ForceFlush method of
the SDK TracerProvider.
Additionally, this corrects the TracerProvider Shutdown method. This
method as well needs to return to the caller any failure it encounters
according to the specification. This returns an error if it cannot type
assert the spanProcessorStates or if shutting down a span processor
results in an error.
Resolves#1606
* Add changes to changelog
* Apply suggestions from code review
Co-authored-by: Steven E. Harris <seh@panix.com>
* Cancel export context when BSP stops
* Defer cancel call in BSP span processor funcs
Co-authored-by: Steven E. Harris <seh@panix.com>
* Update the SimpleSpanProcessor
Subsequent calls to OnStart, OnEnd, and ForceFlush should be ignored
gracefully once Shutdown has been called. This implements that behavior
by shutting down the exporter and removing it from the
SimpleSpanProcessor so subsequent calls to OnEnd will be no-ops.
* Add changes to changelog
* Lock in sync.Once of shutdown instead of Shutdown scope
* Update CHANGELOG.md
Co-authored-by: Steven E. Harris <seh@panix.com>
* Release exporterMu before shutdown exporter
* Move changes to unreleased section of changelog
* Update simple_span_processor.go
revert comment change from merge
Co-authored-by: Steven E. Harris <seh@panix.com>
* Fix#1658 SpanStatus description set only when status code is set to error
* Update CHANGELOG.md
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Add tests for propagation of Sampler Tracestate changes
Sampler specification indicates that SamplingResult.Tracestate
should be associated with the SpanContext of the newly created span.
See
https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/sdk.md#sampler
* Fix SamplingResult TraceState propagation
* Add Changelog entry
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
The spec makes it optional to attempt resampling when changing the name
of a span and we're not sure whether it can be done in an appropriate
manner, so it's best to not do it at all for now. We can try again
later if we find a good way to do it.
* Document SDK span ending stops recording
* Guard SDK span set methods with record check
* Document SDK span exported API
Make note of methods that do nothing if span is not recording.
* Document SDK span End recording check
* Document the SetName method
The minimum version of Go this project supports is 1.14 meaning that all
supported versions of Go support the runtime/trace package. Remove
specific build overrides for versions of Go prior to 1.11 that are not
supported by this project.
* Add Tracestate into the SamplingResult struct
Add `trace.Tracestate` field into the SDK `trace.SamplingResult` struct.
Use ParentContext from SamplingParameters to return Tracestate in
`traceIDRatioSampler`, `alwaysOnSampler` and `alwaysOffSampler`.
Add a new test to check that Tracestate is passed.
* Updated CHANGELOG.md for #1432 PR
Added changes description for #1432.
* Update sdk/trace/sampling_test.go
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Add TraceState to API
* Add tests for TraceState
* Update related tests
- stdout exporter test
- SDK test
* Update OTLP span transform
* Update CHANGELOG
* Change TraceState to struct instead of pointer
- Adjust tests for trace API
- Adjust adjacent parts of codebase (test utils, SDK etc.)
* Add methods to assert equality
- for type SpanContext, if SpanID, TraceID, TraceFlag and TraceState are
equal
- for type TraceState, if entries of both respective trace states are
equal
Signed-off-by: Matej Gera <matejgera@gmail.com>
* Copy values for new TraceState, adjust tests
* Use IsEqualWith in remaining tests instead of assertion func
* Further feedback, minor improvements
- Move IsEqualWith method to be only in test package
- Minor improvements, typos etc.
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Call otel.Handle with non-nil errors
That's what normally happens in other call sites. Those two didn't
check it, but passed the "error" to Handle. The default, delegating
implementation of ErrorHandler was printing the error unconditionally,
which resulted in pointless lines like `2020/12/07 19:51:28 <nil>` in
demos, for example.
* Add tests
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Store span data directly in the span
- Nesting only some of a span's data in a `data` field (with the rest
of the data living direclty in the `span` struct) is confusing.
- export.SpanData is meant to be an immutable *snapshot* of a span,
not the "authoritative" state of the span.
- Refactor attributesMap.toSpanData into toKeyValue and make it
return a []label.KeyValue which is clearer than modifying a struct
passed to the function.
- Read droppedCount from the attributesMap as a separate operation
instead of setting it from within attributesMap.toSpanData.
- Set a span's end time in the span itself rather than in the
SpanData to allow reading the span's end time after a span has
ended.
- Set a span's end time as soon as possible within span.End so that
we don't influence the span's end time with operations such as
fetching span processors and generating span data.
- Remove error handling for uninitialized spans. This check seems to
be necessary only because we used to have an *export.SpanData field
which could be nil. Now that we no longer have this field I think we
can safely remove the check. The error isn't used anywhere else so
remove it, too.
* Store parent as trace.SpanContext
The spec requires that the parent field of a Span be a Span, a
SpanContext or null.
Rather than extracting the parent's span ID from the trace.SpanContext
which we get from the tracer, store the trace.SpanContext as is and
explicitly extract the parent's span ID where necessary.
* Add ReadOnlySpan interface
Use this interface instead of export.SpanData in places where reading
information from a span is necessary. Use export.SpanData only when
exporting spans.
* Add ReadWriteSpan interface
Use this interface instead of export.SpanData in places where it is
necessary to read information from a span and write to it at the same
time.
* Rename export.SpanData to SpanSnapshot
SpanSnapshot represents the nature of this type as well as its
intended use more accurately.
Clarify the purpose of SpanSnapshot in the docs and emphasize what
should and should not be done with it.
* Rephrase attributesMap doc comment
"refreshes" is wrong for plural ("updates").
* Refactor span.End()
- Improve accuracy of span duration. Record span end time ASAP. We
want to measure a user operation as accurately as possible, which
means we want to mark the end time of a span as soon as possible
after span.End() is called. Any operations we do inside span.End()
before storing the end time affect the total duration of the span,
and although these operations are rather fast at the moment they
still seem to affect the duration of the span by "artificially"
adding time between the start and end timestamps. This is relevant
only in cases where the end time isn't explicitly specified.
- Remove redundant idempotence check. Now that IsRecording() is based
on the value of span.endTime, IsRecording() will always return
false after span.End() had been called because span.endTime won't
be zero. This means we no longer need span.endOnce.
- Improve TestEndSpanTwice so that it also ensures subsequent calls
to span.End() don't modify the span's end time.
* Update changelog
Co-authored-by: Tyler Yahn <codingalias@gmail.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Enable support for externally-defined ID generators
* Moved the SDK's `internal.IDGenerator` interface to the `sdk/trace`
package.
* Added `trace.WithIDGenerator()` `TracerProviderOption`.
Signed-off-by: Anthony J Mirabella <a9@aneurysm9.com>
* Update CHANGELOG.md with PR info
* Address PR feedback:
* Fix IDGenerator godoc comment
* rename type defaultIDGenerator to randomIDGenerator
* rename defIDGenerator() to defaultIDGenerator()
Signed-off-by: Anthony J Mirabella <a9@aneurysm9.com>
* Rework trace.IDGenerator interface
* NewTraceID() -> NewIDs(ctx)
** Returns both TraceID and SpanID
* NewSpanID() -> NewSpanID(ctx, traceID)
** Returns only SpanID, has access to TraceID
* Both methods now receive a context, from which they may extract
information
* startSpanInternal() updated to receive a context to pass to the ID
generator
* Drop outdated comment from docblock
Co-authored-by: Krzesimir Nowak <qdlacz@gmail.com>
Co-authored-by: Krzesimir Nowak <qdlacz@gmail.com>
* Move global code to toplevel package
* Move version function to toplevel package
* Update changelog
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Add parent context to SpanProcessor.OnStart
The spec requires doing so. Right now SpanProcessor implementations
aren't doing anything with this argument.
* Update changelog
* Fix typo in test name
Remove cruft about spanStore.
Update documentation about how span.mu is used (related to #1311).
Reformat to conform with idiomatic field documentation.
* Update README
Move project status to top of project documentation and add explicit
warnings that this project may introduce breaking changes.
* Add disclaimer to public packages docs
* Use explicit warning in README
* Add a Shutdown method to api TraceProvider
- sdktraceprovider shutdown span processors
- In examples, replace processosr shutdown with
traceprovider's shutdown
Signed-off-by: Hui Kang <kangh@us.ibm.com>
* remove shutdown in the api provider interface
* Add context in parameter and return error
* handle error in shutdown
* Update CHANGELOG.md
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Update Span API event methods
Remove the context argument from the event methods. It is unused and can
be added back in as a passed option if needed in the future.
Update AddEvent to accept a required name and a set of options. These
options are the new EventOption type that can be used to configure a
SpanConfig Timestamp and Attributes.
Remove the AddEventWithTimestamp method as it is redundant to calling
AddEvent with a WithTimestamp option.
Update RecordError to also accept the EventOptions.
* Add changes to CHANGELOG
* Add LifeCycleOption
Use the LifeCycleOption to encapsulate the options passed to a span for
life cycle events.
* Call sampler on local child spans.
* Update CHANGELOG.md
* Adding a test for calling the sampler on local child spans
* Add clarifying comment to test
* Move trace API to otel
* Move tracetest to oteltest
* Update package documentation
* Remove old api/trace package
* Lint
* Add changes to CHANGELOG
* Add tests for rest of trace API
* Apply suggestions from code review
Co-authored-by: Anthony Mirabella <a9@aneurysm9.com>
* Documentation fixes
Includes resolutions for review issues.
* Correct CHANGELOG post release
Co-authored-by: Anthony Mirabella <a9@aneurysm9.com>
* Update codes to match specification
* Add changes to changelog
* go mod tidy
* Add unit tests for codes
* Update SetStatus methods to only filter Unset
* Update apitest code being tested
- Test by span attributes added by processors in the order
they were registered.
Signed-off-by: Hui Kang <kangh@us.ibm.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Rename *Provider names
There is overlap in naming with MeterProviders and TracerProviders. This
is means the specification is not implemented and these types can not
exist in the same package (#1179). This makes each type and related
functions and types explicit.
* Add changes to CHANGELOG
It is unreliable with no clear good way to make it reliable. The
ForceFlush() method is a simple passthrough to bsp.exportSpans() and the
existing tests of that method should suffice.
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Add ForceFlush() method to SpanProcessor interface
* Add a stub implementation to SimpleSpanProcessor
* Add a working implementation to BatchSpanProcessor
* add CHANGELOG.md entry
* Eliminate sleep from BatchSpanProcessor.ForceFlush() test
* Generating test spans serially should reduce test flakiness
