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Merged
jmacd merged 4 commits into from
Jun 5, 2024
Merged

Avoid work for already-canceled requests #213

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e5b98f1
Avoid work for already-canceled requests
jmacd Jun 4, 2024
2c6c67a
Update collector/exporter/otelarrowexporter/internal/arrow/exporter.go
jmacd Jun 5, 2024
0fabaf9
Merge branch 'main' into jmacd/export_early_cancel
jmacd Jun 5, 2024
673e69a
merge fix
jmacd Jun 5, 2024
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8 changes: 8 additions & 0 deletions collector/exporter/otelarrowexporter/internal/arrow/exporter.go
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Original file line number Diff line number Diff line change
Expand Up @@ -257,6 +257,14 @@ func (e *Exporter) runArrowStream(ctx context.Context, dc doneCancel, state *str
//
// consumer should fall back to standard OTLP, (true, nil)
func (e *Exporter) SendAndWait(ctx context.Context, data any) (bool, error) {
// If the incoming context is already canceled, return the
// same error condition a unary gRPC or HTTP exporter would do.
select {
case <-ctx.Done():
return false, status.Errorf(codes.Canceled, "context done before send: %v", ctx.Err())
default:
}

errCh := make(chan error, 1)

// Note that if the OTLP exporter's gRPC Headers field was
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7 changes: 7 additions & 0 deletions collector/exporter/otelarrowexporter/internal/arrow/exporter_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -284,6 +284,13 @@ func TestArrowExporterTimeout(t *testing.T) {
require.True(t, is, "is a gRPC status")
require.Equal(t, codes.Canceled, stat.Code())

// Repeat the request, will get immediate timeout.
sent, err = tc.exporter.SendAndWait(ctx, twoTraces)
stat, is = status.FromError(err)
require.True(t, is, "is a gRPC status error: %v", err)
require.Equal(t, "context done before send: context canceled", stat.Message())
require.Equal(t, codes.Canceled, stat.Code())

require.NoError(t, tc.exporter.Shutdown(ctx))
})
}
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