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tracing: fix panic on startup when configured

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When support for http/protobuf was added, the OTLP tracing processor
plugin was mistakenly changed to return a raw OTLP exporter instance.
Consequently, the type-assertion to a trace.SpanProcessor inside the
tracing pluigin would panic if the processor plugin was configured.
Modify the OTLP plugin to return a BatchSpanProcessor derived from the
exporter once more.

Signed-off-by: Cory Snider <csnider@mirantis.com>
This commit is contained in:
Cory Snider 2022-04-07 19:51:14 -04:00
parent 030c1ac1ca
commit 927b34e41e
1 changed files with 6 additions and 1 deletions
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7
tracing/plugin/otlp.go
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@ -33,6 +33,7 @@ import (
"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp"
"go.opentelemetry.io/otel/propagation"
"go.opentelemetry.io/otel/sdk/resource"
"go.opentelemetry.io/otel/sdk/trace"
sdktrace "go.opentelemetry.io/otel/sdk/trace"
semconv "go.opentelemetry.io/otel/semconv/v1.4.0"
)
@ -49,7 +50,11 @@ func init() {
if cfg.Endpoint == "" {
return nil, fmt.Errorf("no OpenTelemetry endpoint: %w", plugin.ErrSkipPlugin)
}
return newExporter(ic.Context, cfg)
exp, err := newExporter(ic.Context, cfg)
if err != nil {
return nil, err
}
return trace.NewBatchSpanProcessor(exp), nil
},
})
plugin.Register(&plugin.Registration{