Module telemetry 

Contains tracing/logging and metrics related functionality

Modules

metrics

Metric instrument types and the CoreMeter trait.

Structs

CoreLog

A log line (which ultimately came from a tracing event) exported from Core->Lang

HistogramBucketOverrides

Allows overriding the buckets used by histogram metrics

OtelCollectorOptions

Options for exporting to an OpenTelemetry Collector

OtelCollectorOptionsBuilder

Use builder syntax to set the inputs and finish with build().

PrometheusExporterOptions

Options for exporting metrics to Prometheus

PrometheusExporterOptionsBuilder

Use builder syntax to set the inputs and finish with build().

TelemetryInstance

Holds initialized tracing/metrics exporters, etc

TelemetryOptions

Telemetry configuration options. Construct with TelemetryOptions::builder

TelemetryOptionsBuilder

Use builder syntax to set the inputs and finish with build().

Enums

Logger

Control where logs go

MetricTemporality

Types of aggregation temporality for metric export. See: https://github.com/open-telemetry/opentelemetry-specification/blob/ce50e4634efcba8da445cc23523243cb893905cb/specification/metrics/datamodel.md#temporality

OtlpProtocol

Options for configuring telemetry

TaskQueueLabelStrategy

Determines how the task_queue label value is set on metrics.

Statics

METRIC_PREFIX

The default prefix applied to all Temporal metric names.

Traits

CoreLogConsumer

Consumer trait for use with push logger.

CoreTelemetry

Each core runtime instance has a telemetry subsystem associated with it, this trait defines the operations that lang might want to perform on that telemetry after it’s initialized.

Functions

construct_filter_string

Help you construct an EnvFilter compatible filter string which will forward all core module traces at core_level and all others (from 3rd party modules, etc) at other_level.

remove_trace_subscriber_for_current_thread

Undoes set_trace_subscriber_for_current_thread

set_trace_subscriber_for_current_thread

Set the trace subscriber for the current thread. This must be done in every thread which uses core stuff, otherwise traces/logs will not be collected on that thread. For example, if using a multithreaded Tokio runtime, you should ensure that said runtime uses on_thread_start or a similar mechanism to call this for each thread within the runtime.

telemetry_init

Initialize tracing subscribers/output and logging export, returning a TelemetryInstance which can be used to register default / global tracing subscribers.

telemetry_init_fallback

WARNING: Calling can cause panics because of https://github.com/tokio-rs/tracing/issues/1656 Lang must not start using until resolved

telemetry_init_global

WARNING: Calling can cause panics because of https://github.com/tokio-rs/tracing/issues/1656 Lang must not start using until resolved