gcp-observability, census: add trace information to logs #9963
+686
−125
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This PR adds trace information (TraceId, SpanId and TraceSampled) fields to LogEntry, when both logging and tracing are enabled in gcp-observability.
For server-side logs, span information was readily available using Span.getContext() propagated via
io.grpc.Context
. Similar approach is not feasible for client-side architecture.Client SpanContext which has all the information required to be added to logs is propagated to the logging interceptor via
io.grpc.CallOptions
.CC @ejona86 @sanjaypujare