Geronimo OpenTracing

Geronimo OpenTracing provides an OpenTracing implementation and a Microprofile OpenTracing implementation at once.

Note	sampling is not yet supported because it leads to push inconsistent spans to the backend, however you can always specialize (CDI) your FinishSpan observer to implement it if desired.

Configuration

Note	if you are using Microprofile Config it is used, otherwise it uses system properties.

Key	Description	Default
geronimo.opentracing.filter.active	Should OpenTracing be activated	true
geronimo.opentracing.filter.forcedTracing.urls	Urls for which the tracking should be activated automatically. The urls are actually the requets uri minus the context path.	-
geronimo.opentracing.filter.skippedTracing.urls	Urls for which the tracking should be skipped.	-
geronimo.opentracing.filter.skippedTracing.matcherType	Type of matcher for the url, default is prefix which means a startsWith is used on the url but you can also use regex which compiles the url as a Pattern	prefix
geronimo.opentracing.filter.forcedTracing.matcherType	Type of matcher for the url, default is prefix which means a startsWith is used on the url but you can also use regex which compiles the url as a Pattern	prefix
geronimo.opentracing.filter.forcedTracing.skipDefaultTags	Should HTTP_METHOD, HTTP_URL not be added to tags	false
geronimo.opentracing.server.filter.request.skip.<endpoint class>_<endpoint method>	Should server instrumentation be ignored	false
geronimo.opentracing.server.filter.request.skip	Should server instrumentation be ignored (if previous is not set)	false
geronimo.opentracing.server.filter.request.skipDefaultTags	Should HTTP_METHOD, HTTP_URL not be added to tags	false
geronimo.opentracing.server.filter.request.operationName.usePath	Should the operationName use the @Path annotations instead of class names.	false
geronimo.opentracing.client.filter.request.skip	Should client instrumentation be ignored	false
geronimo.opentracing.client.filter.request.skipDefaultTags	Should HTTP_METHOD, HTTP_URL not be added to tags	false
geronimo.opentracing.client.filter.request.skipPeerTags	Should PEER_HOSTNAME, PEER_PORT not be added to tags	false
geronimo.opentracing.propagation.headers.parentSpanId	Name of the header used to host the parent spanId value	X-B3-ParentSpanId
geronimo.opentracing.propagation.headers.spanId	Name of the header used to host the spanId value	X-B3-SpanId
geronimo.opentracing.propagation.headers.traceId	Name of the header used to host the traceId value	X-B3-TraceId
geronimo.opentracing.propagation.headers.baggagePrefix	Prefix of headers used to host the baggage values	baggage-
geronimo.opentracing.id.generator	counter (to generate longs), uuid (to generate random uuids) or hex (to use the hexa representation of the uuid generator). Specifies which kind of trace and span id are in use.	counter
geronimo.opentracing.id.generator.hex.prefix	For hex generator, a prefix to prepend to all ids.	-
geronimo.opentracing.span.converter.zipkin.active	Should spans converted to a zipkin representation. True until there is a standard opentracing format.	true
geronimo.opentracing.span.converter.zipkin.serviceName	The local serviceName.	hostname-jvmid
geronimo.opentracing.span.converter.zipkin.logger.active	Should a logger named org.apache.geronimo.opentracing.zipkin log each span as a Zipkin JSON. This allows to use a logger implementation to push the spans to any backend (like log4j2 kafka appender). It uses JUL as a facade.	true
geronimo.opentracing.span.converter.zipkin.logger.wrapAsList	Should zipkin JSON be logged wrapped in a list.	true

ExecutorServices

To monitor a CDI executor service, you can decorate it with @TracedExecutorService.

Extension module

geronimo-opentracing-extension provides a TracingProxyFactory module allowing to use java proxies (on interfaces) to add tracing to all methods of the decorated instance.