Crate photon_telemetry 

Operations telemetry port for Photon.

Hosts install a process-wide OpsLog via install_ops_log or PhotonBuilder::ops_log. Backend instrumentation (publish counters, DLQ rows, checkpoint failures) calls ops_log.

Entry points

• OpsLog — counter / gauge / event trait
• install_ops_log / ops_log / ops_log_from_env — process-wide adapter
• ConsoleOpsLog / NoOpsLog — shipped adapters

Runnable: cargo run -p uf-photon --example telemetry_ops_log --features runtime,mem.

Structs

ConsoleOpsLog

stderr/stdout structured lines (default dev adapter).

NoOpsLog

Zero-cost no-op (benchmark telemetry=off and minimal CI).

RecordedCounter

Captured counter increment.

RecordedEvent

Captured structured event.

RecordedGauge

Captured gauge sample.

RecordingOpsLog

Append-only in-memory ops log for assertions in unit/integration tests.

Traits

OpsLog

Structured ops metrics/events for publish, drain, DLQ, checkpoints.

Functions

install_ops_log

Install the process-wide ops log (typically at server boot before Photon runtime).

ops_log

Resolved ops log — NoOpsLog until install_ops_log.

ops_log_from_env

Resolve from PHOTON_TELEMETRY (off | console; default console).