Module telemetry_sink 

publication of the recorded events using http

Modules

api_key_decorator

API Key request decorator for HttpEventSink authentication

composite_event_sink

http_event_sink

jemalloc_conf

Exports the malloc_conf weak symbol jemalloc reads at startup, so every binary declaring jemalloc as its global allocator runs with background purging and a tightened dirty decay instead of jemalloc’s stock background_thread:false,dirty_decay_ms:10000. See mkdocs/docs/admin/memory-allocator.md.

local_event_sink

log_interop

oidc_client_credentials_decorator

OIDC Client Credentials request decorator for service authentication

request_decorator

reqwest

stream_block

stream_info

system_monitor

tokio_retry

tracing_interop

Macros

declare_jemalloc_conf

Declares the _rjem_malloc_conf symbol jemalloc’s conf.c resolves at precedence 1 (weaker than _RJEM_MALLOC_CONF, stronger than the compile-time --with-malloc-conf default), pointing it at CONF.

Structs

TelemetryGuard

TelemetryGuardBuilder

Constants

DEFAULT_LOCAL_SINK_MAX_LEVEL

Default max level for the local (stdout) sink, applied when neither an explicit builder call nor LOCAL_SINK_MAX_LEVEL_ENV_VAR sets one.

DEFAULT_TELEMETRY_SINK_MAX_LEVEL

Default max level for the HTTP telemetry sink, applied when neither an explicit builder call nor TELEMETRY_SINK_MAX_LEVEL_ENV_VAR sets one.

LOCAL_SINK_MAX_LEVEL_ENV_VAR

Environment variable capping the local (stdout) sink’s max level. Read once by TelemetryGuardBuilder::build. Precedence is TelemetryGuardBuilder::with_local_sink_max_level (including the #[micromegas_main] macro’s local_sink_max_level attribute) > this variable > the DEFAULT_LOCAL_SINK_MAX_LEVEL default. Accepts off, fatal, error, warn, info, debug, or trace, case-insensitively; an unparseable value fails build().

PROCESS_PROPERTIES_ENV_VAR

Environment variable carrying deployment-supplied process properties as a comma-separated key=value list, e.g. cluster=prod,role=cache. Read by TelemetryGuardBuilder::build, so every micromegas process honors it.

TELEMETRY_SINK_MAX_LEVEL_ENV_VAR

Environment variable capping the HTTP telemetry sink’s max level. Read once by TelemetryGuardBuilder::build. Precedence is TelemetryGuardBuilder::with_telemetry_sink_max_level > this variable > the DEFAULT_TELEMETRY_SINK_MAX_LEVEL default. Accepts the same values as LOCAL_SINK_MAX_LEVEL_ENV_VAR; an unparseable value fails build(), even if no telemetry URL ends up configured.

Functions

merge_process_properties

Merges a PROCESS_PROPERTIES_ENV_VAR-formatted list into properties, leaving keys already present untouched. Precedence is therefore explicit TelemetryGuardBuilder::with_process_property calls > environment > populate_default_system_properties defaults: an operator can add deployment tags but cannot spoof the version that micromegas_main stamps nor the identity properties derived from the host, both of which dashboards filter on. Within one list the first occurrence of a key wins, consistent with that rule.