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Code Issues Releases Activity

Add ForceFlush method to TracerProvider (#1608)

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* 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>
This commit is contained in:
Tyler Yahn
2021-03-08 19:12:13 +00:00
committed by GitHub
parent bd0bba43b5
commit 3dc91f2d76
9 changed files with 93 additions and 35 deletions
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9
sdk/trace/batch_span_processor_test.go
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@ -78,10 +78,11 @@ func TestNewBatchSpanProcessorWithNilExporter(t *testing.T) {
// These should not panic.
bsp.OnStart(context.Background(), span.(sdktrace.ReadWriteSpan))
bsp.OnEnd(span.(sdktrace.ReadOnlySpan))
bsp.ForceFlush()
err := bsp.Shutdown(context.Background())
if err != nil {
t.Error("Error shutting the BatchSpanProcessor down\n")
if err := bsp.ForceFlush(context.Background()); err != nil {
t.Errorf("failed to ForceFlush the BatchSpanProcessor: %v", err)
}
if err := bsp.Shutdown(context.Background()); err != nil {
t.Errorf("failed to Shutdown the BatchSpanProcessor: %v", err)
}
}