Server-Emitted OpenTelemetry Signals

Span name

HTTP method at span start (e.g. GET), updated to the low-cardinality route at span end (e.g. GET /api/users/{id}). The route is derived from Jakarta REST resource and method annotations (and equivalent framework routing metadata) once routing is resolved.

SpanKind

SERVER

Trigger

Every inbound HTTP request processed by StandardWrapper. Nested forward/include dispatches reuse the existing span without creating a child.

http.request.method

yes

Normalised HTTP method. Unknown methods are mapped to HTTP.

url.scheme

yes

Request scheme (http or https).

url.path

yes

Full request URI path.

server.address

yes

Server host name from the request.

server.port

yes

Server port number.

url.query

if present

Raw query string, omitted when there is no query.

user_agent.original

if present

User-Agent request header value.

client.address

if present

Remote IP address of the client.

http.route

if resolved

Low-cardinality route template (e.g. /api/users/{id}). Set only after framework routing completes.

http.response.status_code

yes

HTTP response status code.

network.protocol.name

yes

Fixed value http.

error.type

status >= 500 only

String representation of the status code (e.g. "500"). Never emitted for successful responses.

Span name

HTTP method of the outbound request (e.g. POST).

SpanKind

CLIENT

Trigger

Every outbound JAX-RS client call when OpenTelemetry is enabled for the application.

url.full

yes

Full URI of the outbound request.

http.request.method

yes

HTTP method.

server.address

yes

Target host.

server.port

if not -1

Target port. Omitted when the URI does not specify a port.

payara.subsystem

yes

Fixed value jakarta-rest.

http.response.status_code

yes

HTTP response status code received.

Span name

CORBA operation name (e.g. findByPrimaryKey).

SpanKind

CLIENT

Trigger

Every outbound IIOP call from the ORB client-side interceptor, via OpenTelemetryIiopClientInterceptor.

rpc.system.name

yes

Fixed value corba.

rpc.method

yes

CORBA operation name, identical to the span name.

Span name

CORBA operation name received from the client.

SpanKind

SERVER

Trigger

Remote inbound IIOP calls processed by OpenTelemetryIiopServerInterceptor. Co-located same-JVM EJB calls bypass PortableInterceptors entirely and do not produce this span. Set the JVM property com.sun.corba.ee.ORBAllowLocalOptimization=false to force full IIOP dispatch for local calls during testing.

rpc.system.name

yes

Fixed value corba.

rpc.method

yes

CORBA operation name.

Span name

concurrent/<pool> wait — where <pool> is the managed executor pool name.

SpanKind

INTERNAL

Trigger

Each time a task is picked up from the executor queue, immediately before the task body runs. The span starts at task submission time and ends when the worker thread picks up the task, recording queue latency.

payara.subsystem

yes

Fixed value jakarta-concurrency.

thread.id

yes

ID of the worker thread that picked up the task.

thread.name

yes

Name of the worker thread.

scheduling.wait_ms

yes

Queue latency in milliseconds (fractional), measured from task submission to pickup.

Span name

The value attribute of @WithSpan if non-empty; otherwise the canonical class name + method name (e.g. com.example.MyBean.doWork). For anonymous/synthetic classes the simple class name is used instead.

SpanKind

Value of the kind attribute on @WithSpan. Defaults to INTERNAL.

Trigger

CDI bean methods annotated with @io.opentelemetry.instrumentation.annotations.WithSpan when OpenTelemetry is enabled. JAX-RS and JAX-WS methods are excluded — those are handled by their respective container instrumentation.

Name

http.server.request.duration

Instrument type

Histogram (double)

Unit

s (seconds)

Description

Duration of HTTP server request processing, measured from the outermost server entry point to response completion. Async requests are measured until the async context completes.

http.request.method

yes

Normalised HTTP method.

url.scheme

yes

Request scheme (http or https).

http.response.status_code

yes

HTTP response status code.

http.route

if resolved

Low-cardinality route template. Omitted when routing could not determine a template.

error.type

status >= 500 only

String representation of the status code (e.g. "500"). Never emitted for non-error responses.

jvm.memory.used

UpDownCounter (async)

By

jvm.memory.type (heap / non_heap), jvm.memory.pool.name

jvm.memory.committed

UpDownCounter (async)

By

jvm.memory.type, jvm.memory.pool.name

jvm.memory.limit

UpDownCounter (async)

By

jvm.memory.type, jvm.memory.pool.name

jvm.memory.init

UpDownCounter (async)

By

jvm.memory.type, jvm.memory.pool.name

jvm.memory.total.used

UpDownCounter (async)

By

jvm.memory.type (heap or non_heap)

jvm.memory.total.committed

UpDownCounter (async)

By

jvm.memory.type

jvm.memory.total.limit

UpDownCounter (async)

By

jvm.memory.type

jvm.memory.total.init

UpDownCounter (async)

By

jvm.memory.type

jvm.memory.used_after_last_gc

UpDownCounter (async)

By

jvm.memory.type, jvm.memory.pool.name

jvm.thread.count

UpDownCounter (async)

{thread}

jvm.thread.state (lowercase thread state name), jvm.thread.daemon (boolean)

jvm.class.loaded

Counter (async)

{class}

—

jvm.class.unloaded

Counter (async)

{class}

—

jvm.class.count

UpDownCounter (async)

{class}

—

jvm.cpu.time

Counter, double (async)

s

—

jvm.cpu.count

UpDownCounter (async)

{cpu}

—

jvm.cpu.recent_utilization

Gauge, double (async)

1

—

jvm.buffer.memory.limit

UpDownCounter (async)

By

jvm.buffer.pool.name

jvm.buffer.count

UpDownCounter (async)

{buffer}

jvm.buffer.pool.name

jvm.gc.duration

Histogram (double)

s

jvm.gc.name — garbage collector name (e.g. G1 Young Generation)