Module tracing

Available on crate feature tracing only.

Tracing utilities.

This module contains application tracing utilities built on top of the tracing and opentelemetry libraries. The key exports are:

• The configure function, which configures the tracing and opentelemetry crates with sensible defaults and should be called during initialization of every Materialize binary.

• The OpenTelemetryContext type, which carries a tracing span across thread or task boundaries within a process.

Structs

• MetricsLayer 🔒
• OpenTelemetryConfig
  Configuration for the opentelemetry library.
• OpenTelemetryContext
  An OpenTelemetry context.
• PrefixFormat
  A wrapper around a FormatEvent that adds an optional prefix to each event.
• SentryConfig
  Configures Sentry reporting.
• StderrLogConfig
  Configures the stderr log.
• TokioConsoleConfigtokio-console
  Configuration of the Tokio console integration.
• TracingConfig
  Application tracing configuration.
• TracingGuard
  A guard for the tracing infrastructure configured with configure.
• TracingHandle
  A handle to the tracing infrastructure configured with configure.

Enums

• StderrLogFormat
  Specifies the format of a stderr log message.

Constants

• LOGGING_DEFAULTS_STR
  By default we turn off tracing from the following crates, because they have error spans which are noisy.
• OPENTELEMETRY_DEFAULTS_STR
  By default we turn off tracing from the following crates, because they have long-lived Spans, which OpenTelemetry does not handle well.
• SENTRY_DEFAULTS_STR
  By default we turn off tracing from the following crates, because they have error spans which are noisy.

Statics

• GLOBAL_SUBSCRIBER
  An Arc of the tracing Subscriber constructed and initialized in configure. The value is written when configure runs.
• LOGGING_DEFAULTS
  Same as LOGGING_DEFAULTS_STR, but structured as Directives.
• OPENTELEMETRY_DEFAULTS
  Same as OPENTELEMETRY_DEFAULTS_STR, but structured as Directives.
• SENTRY_DEFAULTS
  Same as SENTRY_DEFAULTS_STR, but structured as Directives.

Functions

• configure
  Enables application tracing via the tracing and opentelemetry libraries.
• crate_level
  Returns the Level of a crate from an EnvFilter by performing an exact match between crate and the original EnvFilter directive.

Type Aliases

• DirectiveReloader 🔒
• GlobalSubscriber 🔒
  The GLOBAL_SUBSCRIBER type.
• Reloader 🔒