The first instrumented drop on dev read "dropped after 10.0s … (completed:
parse=0.1s)": the whole stall is inside record_metrics. It now marks its
three steps (flush of the rows, the rule and state reads, the per-sample
evaluation) on the caller's phases, and the drop line carries the request's
samples and metric row count.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Every host-agent ingest in the service logs ends at ~10 s with no status:
the agent gives up at its urlopen timeout (agent.py) before Steward answers.
Nothing says which part of ingest is slow, so this measures it:
- each phase (parse, metrics with alert evaluation, docker persist,
commit) is timed, and a request past 2 s logs one line with the phases,
sample count, metric rows, containers and log lines;
- a request the server drops when the agent hangs up (CancelledError) logs
how long it ran and which phases completed, then re-raises.
The fix follows once the logs say which phase it is.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>