Commit graph

299 commits

Author SHA1 Message Date
c514626a62
test: coverage round 3 (83.96% → 84.39%) + 10 new property tests
64 unit tests + 10 property tests across three parallel agents.

- ContactLive.Show round 3 (72% → ~80%): enrichment failure
  surfaces (terrain/iemre/weather :failed, hrrr :unavailable NARR
  fallback), radar-only mechanism, load_solar + enqueue_missing_solar
  paths, blocked_message nil obs_dist, band_summary for 144M/1296M/
  2304M/47G/75G, admin edit no-op, mode changes, fetch_queue_counts
  with seeded Oban jobs. Properties: propagation_mechanism summary is
  always a binary, obs_sort_key totality over arbitrary field keys.

- Weather clients: iem_client transport timeouts + CSV edge cases,
  rtma_client idx url property, swpc_client HTTP 503/404 + empty-
  array parses + JSON/CSV totality properties, ncei_metar_client
  parse edge cases, snmp_client OID-roundtrip property + parse
  edge cases.

- Mid-coverage LiveViews: UserProfileLive avatar/render branches,
  EmeLive invalid-grid/unknown-callsign + form-validation property,
  PathLive zero-distance + 3000km + height/power round-trip property,
  BeaconLive numeric bearing + non-admin approve denied, MapLive
  select_band/toggle_radar/toggle_grid events + band-URL property.

Fix: propagation_mechanism property test uses System.unique_integer
for lat + valid_time nonces instead of StreamData-shrinkable jitter;
the shrink toward 0 was tripping the hrrr_profiles unique index.

205 → 215 properties, 2743 → 2812 tests, 0 failures.
2026-04-24 10:15:37 -05:00
bbf51544e1
test: coverage round 2 (82.05% → 83.96%) + 23 new property tests
77 unit tests + 23 property tests across four parallel agents.

- ContactLive.Show (72.01% → ~75%): every factor-note branch
  (humidity/time/td/refractivity/pressure/season/pwat), all
  propagation_mechanism classifications, apply_admin_edit/owner_edit/
  submit_user_edit error paths, internal_network? IP shapes, expanded
  sounding skew-T, composite-score [0,100] property.

- PathLive + BeaconLive.Show + Weather: coordinate-pair resolver,
  invalid grid, empty-DB edge cases for iemre_for_*, narr_for_*,
  nearest_native_duct_*, find_nearest_rtma, recent_surface_obs;
  properties for round_to_hrrr_grid/round_to_iemre_grid/band
  round-trip/beacon-id URL round-trip.

- Viewshed + Duct + SoundingParams: find_reach_km edge cases,
  destination_point, effective_reach_km fractions, detect_ducts
  trailing-duct + guard branches; 13 properties including flat-
  terrain-fully-visible, thicker-duct-lower-freq, M-profile
  monotonicity, feature-vector deterministic length.

- Workers + Mix tasks: GefsFetchWorker 500/429/403 + malformed
  ISO8601, HrrrNativeGridWorker snap-to-3-decimals + empty DB,
  IonosphereFetchWorker 404 + non-tabular body, RadarBackfill
  --dry-run + --year + --limit, NexradBackfill --limit 0, Backtest
  --feature + --all; year-filter property covering 2015..2026.

170 → 205 properties, 2666 → 2743 tests, 0 failures.
2026-04-24 10:15:37 -05:00
e11ebc9af8
test: coverage round 1 (80.45% → 82.05%) + 12 new property tests
Adds 67 test cases + 12 property tests across four surfaces — parallel
agents targeted the lowest-coverage files in the tree.

- ContactLive.Show (48.56% → 72.01%): 16 unit tests + 2 properties
  covering IEMRE/radar/ducting/propagation-analysis render branches,
  every terrain-verdict class, expanded HRRR/terrain sections, pending-
  edit banner, internal-network conn, and total-over-fields properties
  for obs + sounding sort handlers.

- HrrrNativeClient (33% → 58%): 8 unit tests + 4 properties covering
  partial-surface fallback, empty input, optional-var nils, bogus
  binary dispatch, and level-count + monotonic-height + URL-encoding
  + duct-subset invariants.

- NexradClient / HrrrClient / GefsClient: 13 unit tests + 4 properties
  covering 500/404/timeout paths, malformed idx bodies, parse_idx
  totality, byte-range invariants, and URL-builder round-trips.

- HrrrBackfill / HrrrNativeDeriveFields / ImportContestLogs: 7 unit
  tests + 1 property. Seeds contacts + native profiles, stubs HRRR
  with Req.Test, exercises the `--limit 0` and `filter_points_needing_
  backfill` paths, CSV import happy + malformed paths, and a
  band-string round-trip property.

2599 → 2666 tests, 170 → 182 properties, 0 failures.
2026-04-24 10:15:37 -05:00
b2b8ddc1c4
test: silence expected warnings/errors during test runs
Passes `capture_log: true` to ExUnit.start/1 so log output emitted
during a passing test stays in the per-test capture buffer instead of
stdout. Drops ~360 lines of noise from the suite: Postgrex teardown
disconnects, expected worker failures, NexradClient 404 stubs,
NotifyListener warm-skip messages, SNMP poll failures, PromEx tag-
drop warnings, and OTel-handler boot errors. Failing tests still
surface their full logs on report, so debugging is unchanged.

Side-effect fixes:
- LoggerFormatTest opts out via @moduletag capture_log: false — it
  patches the :default :logger handler and capture_log hot-swaps the
  same handler, so the setup lookup would 404.
- TelemetryTest.start_link/1 unlinks the supervisor before the brutal
  kill so the exit signal doesn't propagate to the test process.
- Drop unused `import Ecto.Query` in a top_hours mix-task test.
- Drop unused default-arg `attrs \\ %{}` on create_contact/1 in
  contact_map_live_test (every caller passes attrs explicitly).

Remaining noise is ~3 lines from oban_pro vendored-dep @impl warnings
(require an upstream patch) plus rare intermittent async teardowns.
2026-04-24 09:27:17 -05:00
5564b6703d
test: push line coverage from 78.67% → 80.45%
Adds 30 more test cases (2594 → 2624 tests) targeting the last
low-coverage hot spots.

Notable additions:
- ContactLive.Show fully-hydrated render path (seeds HrrrProfile,
  TerrainProfile, ContactCommonVolumeRadar, Sounding, SurfaceObservation,
  IemreObservation) exercises refresh_computed, build_propagation_analysis,
  build_data_sources, compute_elevation_profile, and the downstream
  render branches they unlock.
- handle_info :terrain_ready and :sounding_fetched paths for same-contact
  and unrelated-contact dispatch.
- Flagged-invalid badge + line-through header style.
- Owner-label button path (Edit vs Suggest Edit).
- NotifyListener init/1 subscribes on schedule; handle_info(:subscribe)
  succeeds against the live Repo.
- RecalibrateScorer runs cleanly against an empty corpus via the
  Recalibrator insufficient-data fallback.
- HrrrNativeClient.extract_native_profiles/2 tolerates malformed input
  without crashing.
2026-04-24 08:27:18 -05:00
f99d07bd29
test: push line coverage from 71.7% → 78.67%
Adds ~600 new test cases (2013 → 2613 tests; 170 properties; 0
failures) across 12 new test files plus expansions of eight existing
files. Big lifts per module:

  ContactLive.Mechanism      33 → 100%
  MetricsPlug                54 → ~100%
  Microwaveprop.Release      15.8 → 70%+
  Telemetry                  38 → 76%
  HrrrNativeGridWorker       27.7 → 76%
  ContactLive.Show           34 → 48% (handler + render branches)
  Admin.ContactEditLive      49.7 → 70%+
  GefsFetchWorker            35.8 → ~55%
  IonosphereFetchWorker      56.3 → 75%
  PathLive                   58.9 → 67%
  WeatherMapLive             66.9 → 80.2%
  RoverLive                  0 → 70.3%
  ContactMapLive             59.2 → 89.8%
  ContactMapController       0 → 100%
  Mix tasks (Rust.Golden, Notebook, Backtest, HrrrBackfill,
    HrrrClimatology, HrrrNativeBackfill, NexradBackfill,
    RadarBackfill, ImportContestLogs, PropagationGrid,
    ResetEnrichment, Hrrr.PurgeGridPoints)  0 → ~60-100%

Two incidental fixes made while adding tests:

- ContactLive.Show.handle_event("toggle_flag", ...) was passing
  socket.assigns.current_scope to admin?/1 instead of socket.assigns,
  so admins never matched the pattern and every toggle ran the
  "Admins only." flash branch. Flag now toggles for admins again.

- Commercial.PollWorker.fetch_weather/1 promoted from private to
  @doc'd public so the IEM-fetch + ASOS-upsert path can be tested
  directly without driving perform/1 through live SNMP (which was
  timing out for ~50 s per test in the earlier attempt).

Stable property-test additions cover the dewpoint-from-RH monotonicity,
nearest_run/1 idempotence, and the ionosphere station envelope.
2026-04-23 18:43:18 -05:00
bd107ee747
feat(eme): add /eme Earth-Moon-Earth calculator
New /eme page — antenna aiming + link budget for moonbounce.

Given a station (callsign / grid / lat,lon), TX power, antenna gain,
detection bandwidth, and system Tsys, the page shows in real time:

- Moon azimuth / elevation from the observer (ticks every 10 s)
- Slant range to the Moon
- EIRP breakdown: TX(dBm) + gain(dBi) = EIRP(dBm)
- Path-loss decomposition (Earth → Moon → Earth):
    free-space spreading (×2)
    − moon reflection gain 10·log(4π σ / λ²) where σ = ρ·π·R²
    = round-trip path loss
- Band-dependent lunar albedo ρ (VHF ≈ 0.065, microwave ≈ 0.08,
  mm-wave ≈ 0.02) surfaced as a named line item with the current
  ρ shown to three decimals
- Received power, thermal noise floor, and SNR with a badge that
  classifies the margin (strong / marginal / below noise)
- Self-echo Doppler shift with its radial-velocity driver

New modules:

- `Microwaveprop.Moon` — low-precision lunar ephemeris
  (Astronomical Almanac Sec. D.4 truncated series). Provides
  `julian_day/1`, `geocentric/1`, `observer_position/3`, and
  `radial_velocity_km_s/3`. Accurate to ~0.3° position / ~200 km
  distance — well inside any amateur EME-dish beamwidth.
- `Microwaveprop.Propagation.Eme` — path-loss helpers:
  `moon_albedo/1` (band lookup), `moon_rcs_m2/1`,
  `fspl_round_trip_db/2`, `moon_reflection_gain_db/2`,
  `path_loss_db/3`, `received_power_dbm/1`, `noise_floor_dbm/2`,
  `snr_db/1`, `doppler_shift_hz/2`.

Wired into the main nav ("EME" button) and the router between
/path and /rover.

Tests: 3 properties + 41 unit tests cover JD conversion, moon
position envelope, band-dependent albedo lookup, decomposition
identity, linearity/monotonicity of path loss and Doppler, and a
LiveView integration test against the rendered DOM.

Full suite: 2,460 tests + 170 properties; credo strict clean.
2026-04-23 16:18:20 -05:00
a7250c39e7
test: pin GRIB2 Section parsing to its full contract
- identify_var: full round-trip across every known (discipline,
  category, number) triple, plus a property that any triple outside
  the 12-entry lookup falls back to the "cat:num" default.
- identify_level: hybrid-level and entire-atmosphere branches, plus
  two properties — pressure levels always render as
  `div(value_pa, 100) <> " mb"` and unknown surface types always
  render as `unknown:<type>:<value>` (generator samples only from
  types outside the 6-entry lookup set).
- sign_magnitude_16: round-trip property over [-32_767, 32_767] (±0
  both decode to 0 as intended) and a monotonicity property inside
  a single sign band.

Suite: 2,419 tests + 164 properties (was 2,416 + 159); credo strict
clean.
2026-04-23 15:56:38 -05:00
54cabdb609
fix(enrichment): mark OCONUS contacts hrrr_status :unavailable
Root cause of 14 stuck hrrr-queued contacts: hrrr_point_rs's CONUS-only
grid silently writes zero profiles for out-of-bounds points (UK,
Winnipeg, Alberta, >50° lat), but the fetch task still completes
successfully. ContactWeatherEnqueueWorker's hrrr_placeholder_jobs
always emitted a queued placeholder for any contact with a pos1,
which meant mark_hrrr_status! re-flagged :queued every backfill tick
forever.

Introduce Propagation.Grid.contains?/1 as the canonical in-CONUS
check (inclusive on all four edges, nil-safe). Use it in two places
of ContactWeatherEnqueueWorker:

- hrrr_placeholder_jobs/1 now returns [] for OCONUS contacts, same
  as pre-2014 / already-complete ones.
- mark_hrrr_status!/3 empty-list clause now branches on Grid.contains?
  first (→ :unavailable) before falling through to the existing
  NARR-coverage / :complete logic.

Next backfill tick will flip the 14 stuck OCONUS contacts in prod to
:unavailable automatically. The remaining 13 "CONUS" stuck ones are
right at the 50° edge (lat=50.1875 rounds outside the box) — same
reconciliation path.

Coverage additions:
- Grid.contains?/1 — corner-inclusive, OCONUS positive/negative
  fixtures based on the actual stuck-contact pos1 values, nil/missing-
  key/nil-value handling.
- enqueue_for_contact regression tests: pos1 in the UK and pos1 just
  north of the lat cap both land at :unavailable, not :queued.

Suite: 2,416 tests + 159 properties (was 2,409 + 159); credo strict
clean.
2026-04-23 14:19:23 -05:00
56e6a3513c
test: cover METAR field extractors and Scorer.path_integrated_conditions
- NceiMetarClient: wind-group parsing (VVVKKKT), missing-wind-group
  fallback to nil, multi-layer sky condition concat, missing-sky token
  returns nil, missing altimeter returns nil, T-group-less fallback to
  the coarse "TT/DD" field.
- Scorer.path_integrated_conditions/2: averages surface temp/dew,
  takes MIN of pressure + refractivity gradient, takes AVG of HPBL +
  PWAT, threads contact time+longitude, and propagates -97.0 longitude
  when pos1 lacks a lon key. Returns nil when every profile is missing
  surface temp OR dewpoint; returns nil on empty-list input;
  tolerates nil pressure / gradient / HPBL / PWAT when temp + dew
  are present.

Suite: 2,409 tests + 159 properties (was 2,397 + 159); credo strict
clean.
2026-04-23 14:13:42 -05:00
41573d4013
test: cover Format.number/bytes, Instrument.span, SolarClient edges
- Format.number/1: boundary cases (0, 999, 1_000), float rounding,
  nil/atom fallback to to_string, plus two properties — comma
  insertion is lossless round-trip and the comma count follows
  `div(digits - 1, 3)` for |n| ≥ 1000.
- Format.bytes/1: per-unit boundary cases plus a monotonicity
  property (parse-back preserves ordering across the B/KB/MB/GB
  transitions).
- Instrument.span/2,3 (0→100%): wraps the block in a telemetry span
  returning its value, defaults metadata to %{}, emits the
  :exception event and re-raises on a raise inside the span, and
  prefixes every event suffix with :microwaveprop.
- SolarClient: short-line / empty-line / blank-day handling for
  parse_gfz_row; blank-line + short-line tolerance in parse_gfz_file;
  filter_since boundary semantics (>= is inclusive, empty list
  passes through).

Suite: 2,397 tests + 159 properties (was 2,382 + 155); coverage
71.12% → 71.16%; Format + Instrument now at 100%; credo strict clean.
2026-04-23 14:09:13 -05:00
e7fb34eb6f
test: add /qsos→/contacts redirect + scorer conversion properties
- PageController: cover the legacy `/qsos` → `/contacts` redirect pair
  (both the index and the id-preserving per-resource redirect), which
  had no coverage since the route rename.
- Scorer property tests:
  - f_to_c / c_to_f are inverses up to float epsilon, both propagate
    nil, and the C→F slope is exactly 5/9.
  - wind_speed_kts is non-negative, propagates nil on either axis,
    and matches sqrt(u²+v²)·1.94384 (the 5-digit kts factor the
    scorer uses).
  - precip_to_rate_mmhr is non-negative, 0 for nil/zero/negative.
  - dbz_to_rain_rate_mmhr is 0 below 5 dBZ (and for nil), and
    monotonically non-decreasing above — guards against accidental
    inversion of the Marshall-Palmer lookup.

Suite: 2,382 tests + 155 properties (was 2,380 + 148); coverage
71.08% → 71.12%; credo strict clean.
2026-04-23 14:03:02 -05:00
0a9058bfa0
test: broaden coverage across parsers, schemas, and pure helpers
- SwpcClient: unparseable time_tag rows drop silently, integer / string
  numerics both cast, already-decoded list bodies (Req auto-decode) are
  accepted, non-JSON-array bodies return {:error, :not_a_list}, X-ray
  rows whose energy isn't the long wavelength are filtered, and the
  misspelled-upstream electron_contaminaton key flags
  electron_contaminated.
- UwyoSoundingClient: every month abbreviation routes to its correct
  number, bogus month tokens fall through to an empty result, and
  short-of-fixed-width lines are skipped without raising.
- Grid.wgrib2_grid_spec/0: lon/lat_start anchor to the SW corner,
  steps match Grid.step/0, cell counts span CONUS inclusive, and the
  spec's cell product equals length(Grid.conus_points/0).
- PollWorker: empty-link list is a no-op, and poll_fn receives host /
  community / radio_type straight from the link row.
- Contact submission_changeset: antenna heights are bounded to
  [0, 1000] ft, whitespace-only mode normalises without firing an
  invalid-mode error, plus a pair of StreamData properties — every
  sanctioned band validates and every out-of-list band string is
  rejected.

Suite: 2,380 tests + 148 properties (was 2,370 + 146); coverage
70.38% → 71.08% total; credo strict clean.
2026-04-23 13:56:29 -05:00
764643bc62
test: expand coverage and refactor to idiomatic style
Changes under lib/ (source):
- iemre_fetch_worker: replace `if transient_failure?/1` boolean predicate
  + `if/else` with a classifier that pattern-matches the error reason
  directly, returning `:transient | :permanent`, and dispatch via
  `case`. Three-clause head is clearer than the boolean predicate.
- scores_file.extract_points and nexrad_client.extract_box: force `//1`
  step on the row/col comprehensions so an image box whose centre
  lands outside the raster collapses to an empty iteration instead
  of firing Elixir 1.19's ambiguous-range warning. Adds a regression
  test for the right-edge box.

Test coverage added:
- Feature wrappers in Backtest.Features (theta_e_jump, shear_at_top,
  duct_thickness, best_duct_freq, duct_usable_for_band,
  distance_to_front / parallel_to_front stubs, all_features/0).
- NotifyListener handle_info tolerance for malformed payloads +
  unknown messages, plus the PubSub broadcast side effect.
- Viewshed.effective_reach_km across every verdict / diffraction
  tier / ducting-score tier combination.
- SnmpClient parse_af60_output unit conversions + unknown-column
  handling; parse_snmpget_output OID normalisation and junk-line
  tolerance.
- HrrrNativeClient native_level_count, native_variables,
  native_messages shape, duct_messages / duct_byte_ranges.
- Changeset coverage for GeomagneticObservation, SolarFluxObservation,
  SolarXrayObservation, Ionosphere.Observation, HrrrClimatology, and
  Metar5minObservation — lifted each from ~50% / 0% to 100%.
- Property tests: GefsClient.dewpoint_from_rh invariants (Td ≤ T,
  monotonic in RH, finite across the operating envelope) + idempotent
  nearest_run. NexradClient.pixel_to_dbz monotonicity + bounded
  output; latlon_to_pixel round-trip for every grid cell.

Also cleared several unrelated compiler/linter warnings:
- Three private test helpers (create_contact, insert_contact,
  current_hour) had `\\ %{}` / `\\ 0` defaults that no caller used.
- profiles_file_test bound `dir` in a pattern match without using it.

Suite: 2,359 tests + 146 properties pass (was 2,300 / 139); coverage
70.38% → 70.89%; credo strict clean.
2026-04-23 13:28:42 -05:00
cfb0c51d2f
test: add property coverage for grid snaps, backoff, notes
Pure-function invariants that example tests can't express at scale:

- Weather.round_to_iemre_grid/2, HrrrClient.nearest_hrrr_hour/1,
  NexradClient.round_to_5min/1, NarrClient.snap_to_analysis_hour/1:
  each is idempotent, its output satisfies a grid/slot-membership
  predicate, and lies within a bounded distance of the input.
- NarrClient.in_coverage?/1: coverage_end is an exclusive upper
  bound; any timestamp after it is out of coverage.
- IemreFetchWorker.backoff/1: result is in [120, 21_600], monotonic
  non-decreasing in attempt, equals 120*2^(attempt-1) pre-cap.
- Contact submission_changeset notes field: every non-blank string
  up to 2000 chars validates; any longer string is rejected.

22 new properties (139 → 161 including existing); all 2,300 tests
green, credo clean.
2026-04-23 13:05:06 -05:00
063e9e3ae4
fix(grid-tasks): reclaim orphan running rows on hourly seed
Rust workers (prop-grid-rs) that die mid-claim (SIGKILL, OOM, node
drain) leave grid_tasks rows stuck in status='running' forever,
because claim_next uses FOR UPDATE SKIP LOCKED and nothing resets the
orphan. The /status page then shows a permanent spinner with stale
f00/f10/f18 badges — currently 21 rows claimed as far back as
2026-04-20.

GridTaskEnqueuer.reclaim_stale_running/1 flips rows whose claimed_at
is older than 15 minutes back to 'queued'. Rows that have already
burned through 5 claim/reclaim cycles become 'failed' with a
reclaim-orphan error so the next hourly seed can replace them.
Wired into PropagationGridWorker.seed_chain/0 so it runs every :05
cron tick before new rows are seeded.

Also rename the status panel "Retrying" column to "Failed" — it was
always showing terminal `failed` rows, never retrying ones.
2026-04-23 12:57:39 -05:00
47ba8d3b6d
fix(enrichment): stub IEMRE on permanent failure + bump hot CPU
IemreFetchWorker now writes an empty stub observation when IEM returns
a permanent-failure status (404, 422), mirroring the existing {:ok, []}
path. The backfill cron's next tick sees the stub via
has_iemre_observation?/3, generates no job, and mark_status!/3 flips
the contact's iemre_status from :queued to :complete — draining the
51 contacts that have been stuck behind cancelled out-of-grid IEMRE
jobs.

Raise hot pod CPU limit 2 → 3 so BEAM gets 3 schedulers online.
Observed run queues of [2, 10, 0, 0, 0, 0] on the 2-scheduler
configuration during the :05 propagation chain, starving /live and
/health probe handlers and tripping intermittent liveness timeouts.
2026-04-23 12:26:09 -05:00
b2ff27945d
feat(adif): carry NOTES / COMMENT into contact notes
ADIF records frequently include operator commentary in the
<NOTES> field (multi-line, detailed) or <COMMENT> (short
one-liner). Now that contacts have a notes column, pass that
value through the import pipeline instead of dropping it.

Preference is NOTES over COMMENT to match the ADIF 3.1.4 spec's
intended split — NOTES is the richer field. Whitespace-only
values collapse to nil so a program that always emits a blank
NOTES tag doesn't fill every row with an empty string.

Tests cover NOTES capture, COMMENT fallback, NOTES-over-COMMENT
preference, and the absent-field nil case. ADIF upload blurb
lists the new carry-over so users see it before confirming.
2026-04-23 11:05:39 -05:00
cd3950f366
feat(contacts): add free-form notes field
Operators want a place to jot observations that aren't captured by
the structured fields — weather anecdotes, propagation mode
commentary, equipment details, band conditions. Add a text column
on contacts plus the two ingest paths users submit through:

  * /submit single-contact form gets a 3-row textarea under the
    other fields. Optional, max 2000 chars, with a live length cap
    via maxlength. Whitespace-only input collapses to NULL so the
    column reflects "no notes" rather than an empty string.
  * CSV importer recognises a `notes` (or `note`) column via the
    existing header_aliases table and flows values straight through
    submission_changeset. Sample template gets a matching example
    row with embedded commas so the quoted-field round-trip is
    exercised on download.

ADIF import and the refinement/refinement-notify paths are out of
scope — users specifically asked for CSV + single-contact. Tests
cover the changeset (accept/blank/over-length), CSV header parsing
(plain + RFC-4180 quoted), and LiveView form submit end-to-end.
2026-04-23 11:02:27 -05:00
004f302374
fix(hrrr): mark contacts :unavailable on failed fetch tasks
When the Rust hrrr-point-worker marks a task as `failed` (upstream
`idx HTTP 404` or wgrib2 decode error on old archive formats), the
corresponding contacts sit at `hrrr_status = :queued` until the
generic 3-day stale-queued reconcile flips them. Speed that up: on
every BackfillEnqueue tick, join contacts to `hrrr_fetch_tasks` by
rounded HRRR hour and flip any `:queued` contact whose cycle is
permanently `failed` to `:unavailable` immediately.

Motivation: a handful of 2018-08-04/05 cycles (t20z/t21z/t15z/t17z)
are genuinely missing `wrfsfcf`/`wrfprsf` files on the NOAA S3
archive — other hours on the same dates are fine, so this is an
upstream data gap rather than a structural pre-2019 issue. Users
see an accurate "Partial" marker on those contacts instead of a
three-day `:queued` stall.

Tested: 4 new cases covering rounding, failed-vs-done, and the
`hrrr not in types` skip branch; full suite 2283/0.
2026-04-22 17:46:51 -05:00
bfddb898bf
fix(backfill): stop clobbering :complete enrichment statuses
Three bugs were letting mechanism/terrain/radar contacts ping-pong
between :complete and :queued on every backfill cron:

1. enqueue_for_contact/2 now filters out types that are already
   :complete on the contact before building jobs. Previously
   mark_status!/3 demoted every non-empty jobs_by_type entry back to
   :queued, overwriting the :complete that workers had just set.
2. reconcile_stale_queued/1 now also flips mechanism_status and
   radar_status back to :complete when the companion data
   (propagation_mechanism / contact_common_volume_radar) already
   exists. Drains the existing ~14k row backlog on the first post-
   deploy tick.
3. IemClient.parse_iemre_json/1 accepts "" and nil so a 200-with-
   empty-body IEMRE response doesn't FunctionClauseError the worker
   through four retry attempts.
2026-04-22 13:54:05 -05:00
e8c252932a
fix(ionosphere): disable TLS verify for GIRO to unbreak ionosonde fetch
lgdc.uml.edu's TLS handshake doesn't include the InCommon RSA Server
CA 2 intermediate, and Erlang/OTP's chain decode trips on an ASN.1
table-constraint mismatch even when the intermediate is merged into
the trust store. The data is public, read-only, unauthenticated
ionosonde measurements, so verify_none is scoped to this one client
rather than let the pipeline stay dark.
2026-04-22 09:49:03 -05:00
c192d6fd9e
fix(propagation): bound ScoreCache to 18-hour forecast window
Hot pods were restart-looping every ~25 minutes on liveness probe
timeouts. Root cause: ScoreCacheReconciler mirrored every .prop file
from NFS into ETS, including 7 days of GEFS Day 2-7 forecasts. With
23 bands × 43 valid_times × ~2 MB per grid = 1.95 GB in the
propagation_score_cache table alone; GC sweeps starved the
scheduler enough that /live dropped its 3 s budget.

The /map UI only ever requests the [now-1h, now+18h] window. Share
that bound as Propagation.hot_cache_window/0 and apply it in the
reconciler's disk-scan path plus NotifyListener's post-warm prune.
Long-horizon GEFS files stay on disk and are still served via the
lazy read_from_disk_and_cache path when requested directly.

Adds ScoreCache.prune_outside_window/2 (inclusive bounds) and
updates the reconciler tests to use relative-to-now timestamps
since hardcoded fixture dates now drift out of window.
2026-04-22 08:34:45 -05:00
ee7809e17b
hardening: Rust worker circuit-breaker + delete wall-clock sleep from beacon test
**Rust workers exit after 30 consecutive claim_next failures.**
Both `prop-grid-rs` and `hrrr-point-worker` ran a `while` loop that
slept 10s and retried forever on `claim_next` errors. If Postgres
went unreachable, pods would stay alive but useless — no circuit
breaker, no liveness probe, just an infinite stream of error logs.
Now we increment a consecutive-failure counter and exit with an
error once it hits 30 (~5 minutes of DB unavailability). k8s
restart policy then cycles the pod, which both triggers an
operator alert and gives us a fresh sqlx pool on the way back up.
A successful claim (Some or None) resets the counter so one
flaky query doesn't poison it.

**BeaconMonitorsTest: drop the Process.sleep(1100).** The test
relied on wall-clock gaps to disambiguate `inserted_at` values on
the `:utc_datetime` (second-precision) timestamps — one full
second of sleep per run, and on shared CI it could still flake
when both inserts landed in the same second. Replaced with an
explicit `Repo.update_all` that back-dates the first row by one
second. 1.1s faster, deterministic.
2026-04-21 18:02:46 -05:00
d3ca2e5791
fix(map): dedupe duplicated forecast-timeline chips + extract Mechanism helpers
The main /map timeline was rendering each forecast hour twice
('Now 22:00' + '0h 22:00', '+1h 23:00' + '+1h 23:00', …).

Root cause: during the rolling `.ntms` → `.prop` rename window,
both extensions live on NFS for the same valid_time. `list_score_files`
matches either, so `list_valid_times_raw` mapped 2 files → 2 DateTimes
with no dedupe. Propagation.available_valid_times inherited the dup,
push_timeline pushed it to the JS hook, renderTimeline drew one chip
per entry — hence the visible duplicate.

Fix: `Enum.uniq` before the sort. Regression test writes a `.prop`
file, copies it as the same valid_time's `.ntms` legacy twin, and
asserts list_valid_times returns a single DateTime.

Also land a small refactor that was queued behind this: move the three
pure mechanism display helpers (label/1, badge_class/1, explainer/1)
out of the 2500-line contact_live/show.ex into a new
MicrowavepropWeb.ContactLive.Mechanism module. No behavior change — just
shrinks the LiveView and gives the display mapping a testable home.
2026-04-21 17:21:11 -05:00
26ef50c965
fix(ingest): dedupe ASOS duplicates + shrink SWPC decode errors
Two unrelated production warnings from the same log window:

WeatherFetchWorker raised Postgrex 21000 cardinality_violation on
ASOS upserts when IEM returned two METAR records for the same
timestamp (routine + special at the same minute). Dedupe by
(station_id, observed_at) in upsert_surface_observations, keeping
the last occurrence since IEM's ordering is chronological.

SwpcClient.fetch_xrays warned with the full truncated response
body (~650 KB of GOES X-ray JSON) dumped into the log aggregator
whenever SWPC's CDN cut the response mid-stream. Intercept
Jason.DecodeError in fetch_and_parse and format it short: keep
the byte position and an 80-char preview, drop the rest.
2026-04-21 16:39:17 -05:00
8ec5d895ee
chore(logs): suppress Phoenix Sent log for /live liveness probe
/live fires every 10s per pod; the request line and Sent 200 response
from Plug.Telemetry drowned out real requests. log_level/1 now returns
false for /live too, same treatment /health already got.
2026-04-21 16:34:17 -05:00
0c98707091
feat: harden /map analysis breakdown + move Plausible to root layout
Two fixes cover the blank "analysis breakdown" panel the user reported:

1. Bound the point_detail fallback lookback to 24h. Previously
   factors_from_fallback_profile would happily use a week-old analysis
   profile when no current one existed — now anything older than 24h
   returns an empty factor map so the UI can surface "breakdown
   unavailable" instead of silently misattributing.

2. Move the Plausible analytics snippet from Layouts.app into
   root.html.heex. Full-bleed LiveViews (/map, /contacts/map,
   /weather, home) bypass Layouts.app, so the snippet only loaded on
   the navbar-wrapped pages. root.html.heex is loaded once per HTTP
   document so coverage is now universal.

Added ~30 tests locking both down:
  • point_detail fallback: exact-time wins, 24h boundary accepted,
    30h-stale rejected, multi-band coverage, missing-cell degrades to
    empty factors, default-valid_time path
  • analytics_test.exs: Plausible script present on 12 representative
    pages, exactly once, loaded async, surviving a login round-trip

Also fixed pre-existing credo issues per standing rule: shortened the
map_live_test ETS match_delete call, extracted a function from the
deeply-nested hrrr_point_enqueuer.enqueue_for_contacts/1 cond, and
swapped Mix.Tasks.Rust.Golden's IO.inspect for Mix.shell().info.
2026-04-21 15:56:30 -05:00
410a1374fe
refactor(scores): rename file extension .ntms -> .prop with legacy reads
Score-grid files now land at `<band>/<iso>.prop` with a 4-byte "PROP"
magic header. Readers still accept the legacy `.ntms` extension and
"NTMS" magic so a rolling deploy doesn't invalidate any file already
on the shared NFS mount — legacy files age out through normal
retention.

Applied both sides of the seam: Elixir ScoresFile + regex parsers,
Rust scores_file writer + decoder. Updated the comments in all
modules that mention the extension (NotifyListener, Reconciler,
gefs_fetch_worker, map_live) and the runbook diagram. talos5 is a
DB host now, not a Rust worker — corrected the runbook accordingly.
2026-04-21 15:54:12 -05:00
084e6b6224
refactor(db): use explicit on_conflict set clauses over :replace_all_except
Convert every context/worker upsert that used the catch-all
`:replace_all_except` form to the explicit `{:replace, [:col1, ...]}`
form. Reviewers can now see exactly which columns an upsert overwrites,
and adding a new column to a schema no longer silently opts it into the
update path.

Behaviour is preserved bit-for-bit: each new explicit list contains
every column the old `:replace_all_except` would have overwritten.

Touched:
- Microwaveprop.SpaceWeather (Kp / F10.7 / X-ray shared helper)
- Microwaveprop.Ionosphere (observation upsert)
- NexradWorker, HrrrNativeGridWorker (insert_all grids)
- CommonVolumeRadarWorker, RadarFrameWorker (per-contact stats)

Also pins the conflict behaviour for the ContactCommonVolumeRadar
upsert path in RadarFrameWorkerTest so a future column addition that
isn't reflected in the explicit list fails loudly.
2026-04-21 14:22:15 -05:00
15ce50365f
perf(concurrency): partition Task.Supervisor to remove bottleneck on heavy async_stream paths
Wrap a Task.Supervisor in a PartitionSupervisor (one partition per
scheduler) and route the four sustained async_stream callers through
`{:via, PartitionSupervisor, {Microwaveprop.TaskSupervisor, self()}}`.
Concurrent work — the hourly PropagationGridWorker pulling f00-f18
HRRR range downloads, the GEFS worker scoring its grid, and the
Recalibrator's 20-way positive/negative fan-out — no longer funnels
through a single supervisor PID.

Light/one-shot Task.async + Task.start sites (hrrr_client surface/
pressure fan-out, application boot warmup, weather fire-and-forget)
are left alone; partitioning only helps under sustained concurrency.
2026-04-21 14:20:29 -05:00
52a32032a3
feat(logging): structured JSON logs in prod via LOG_FORMAT env var
The ingress + Grafana pipeline parses JSON-formatted log lines; Elixir's
default text formatter was the odd format everywhere else, forcing Loki
to fall back to free-text parsing. Swap the `:default` :logger handler's
formatter to `LoggerJSON.Formatters.Basic` when `LOG_FORMAT=json`.

Defaults: `LOG_FORMAT=text` for dev/test (no behaviour change), `json`
for prod. Whitelisted metadata covers the fields we actually correlate
on — `request_id`, `trace_id`, `worker`, `queue`, `job_id`.

OTP 28 / Elixir 1.19 exposes `Logger.Formatter.new/1` but ships no
JSON encoder of its own, so `logger_json` (~> 7.0) carries the rendering.
The test pokes the formatter directly rather than round-tripping through
ExUnit's capture_log, which replaces the handler and so can't see the
installed formatter's output.
2026-04-21 14:17:54 -05:00
f446977048
feat(observability): attach Oban exception telemetry tap
PromEx.Plugins.Oban counts job exceptions as a Prometheus counter but
does not tell us which worker/queue failed, whether the job is about to
be retried, or the exception class. This adds a telemetry handler on
[:oban, :job, :exception] that:

- emits a single structured Logger.error with worker, queue, job_id,
  attempt, max_attempts, retry_exhausted?, kind, reason class, and
  args-keys summary (never values — args can contain PII/tokens);
- dispatches opt-in per-worker recovery callbacks
  (on_permanent_failure/1 when retries exhausted,
  on_transient_failure/1 otherwise);
- catches callback failures so a bug in one worker's recovery path
  cannot detach the handler or break logging for other jobs;
- does not emit a second telemetry event, so PromEx counts are not
  double-counted.

Handler is attached from Application.start/2 after the Oban supervisor
starts.
2026-04-21 14:13:53 -05:00
1591ac740d
feat(cache): jitter ScoreCacheReconciler sweep interval to avoid thundering herd
Every pod was rescheduling its sweep on a fixed 60 s `Process.send_after`
tick, so N replicas hit the shared NFS `/data/scores` mount and Postgres
in lock-step every minute. Add a uniform jitter of up to 20 s on top of
the 60 s base (effective range 60-80 s) so per-replica schedules drift
apart.

Expose `next_sweep_interval/0,2` as a public helper so the randomized
window can be tested deterministically with `:rand` draws rather than
mocking timers. Existing reschedule test passes `jitter_max_ms: 0` to
keep its 2 s wait window honest.
2026-04-21 14:12:31 -05:00
32ba5de456
test(property): add property tests for parsing + domain conversions 2026-04-21 13:57:47 -05:00
c60d56281f
test(property): add property tests for propagation scoring + CIDR matcher 2026-04-21 13:57:12 -05:00
4c1013cdbd
test(property): add property tests for terrain + atmospheric math
Cover the pure-math invariants of the ITU-R P.526-16 diffraction
helpers, the haversine metric on Geo, and the Magnus / dry-adiabat
helpers in the skew-T renderer. 29 properties, one invariant each.
2026-04-21 13:56:39 -05:00
71e8f53142
fix: stabilize flaky tests + silence PromEx Oban poller in test
- HrrrClient idx-cache test only invalidated the surface idx URL, but
  fetch_profile also fetches a pressure idx. Previous runs' state for
  the pressure key decided whether the counter landed at 1 (prior run
  cached it, pass) or 2 (cold, fail). Invalidate both + assert 2 total
  fetches to reflect the actual code path.
- CsvImportTest deadlocked against other async DataCase tests when
  inline Oban child jobs upserted iemre_observations/terrain_profiles
  with a shared conflict target. Flip to async: false — same fix as
  ContactWeatherEnqueueWorkerTest earlier this session.
- PromEx.Plugins.Oban runs a 5s telemetry_poller that queries the DB,
  but its poller PID has no sandbox connection in test and crashed
  with DBConnection.OwnershipError on every tick, spamming the log.
  Gate the plugin on a config flag and skip it in config/test.exs;
  prod behaviour unchanged.
2026-04-21 13:49:07 -05:00
b7261e772c
feat(observability): emit telemetry for NotifyListener warm + GridCache hit/miss
Band-warm failures in the Rust propagation_ready pipeline were only
surfaced via Logger.warning, so Prometheus had no way to see them.
The /weather GridCache hit/miss was likewise invisible while its
/map counterpart (ScoreCache) already reported cache ratio.

- NotifyListener emits [:microwaveprop, :propagation, :notify_listener, :warm]
  with %{ok, err} measurements and %{valid_time} metadata after every
  propagation_ready notification. Public handle_propagation_ready/1 so
  tests can exercise the warm+telemetry path without Postgrex.
- GridCache.fetch/1, fetch_bounds/2, and fetch_point/3 emit
  [:microwaveprop, :weather, :grid_cache, :lookup] with a :hit | :miss
  metadata key on every ETS lookup.
2026-04-21 13:30:26 -05:00
ccf6779fb1
feat(observability): instrument PropagationGridWorker with Instrument.span
Wraps the hourly grid_tasks seed with
[:microwaveprop, :propagation, :grid_worker, :perform] so Prometheus
can see duration, success, and failure for the chain-seed cron.
Emits a :seeded event with the queued_tasks count and an :exception
event on GridTaskEnqueuer failure so silent seed errors show up in
the existing PromEx dashboards instead of dying as a lone Logger.info.
2026-04-21 13:29:09 -05:00
b874020a87
fix(cache): add periodic TTL sweeper to bound ETS growth 2026-04-21 13:19:53 -05:00
5255a6ba63
perf(weather): batch ASOS observation upserts into a single insert_all
IemClient.fetch_asos returns 24-288 rows per station per call, each
previously triggering an individual UPDATE-conflict round-trip via
Weather.upsert_surface_observation/2. On the Turing Pi 2 Postgres
node that per-row latency dominates ingestion time.

Add Weather.upsert_surface_observations/2, a bulk variant that collapses
the rows into a single Repo.insert_all with the same
update-only-when-changed on_conflict predicate and (station_id,
observed_at) conflict target. Switch WeatherFetchWorker to use it.
2026-04-21 13:19:53 -05:00
8e73583926
feat(workers): add GridCachePruneWorker
The Microwaveprop.Weather.GridCache ETS table grew unbounded — each
hourly PropagationGridWorker run plus peer broadcast_put added ~92k
points per forecast hour, so long-lived pods were strong OOM
candidates. GridCache already exposed prune_older_than/1 but nothing
called it.

Adds an Oban worker on the :propagation queue (lower priority than
the grid chain) that prunes entries older than 3 hours. Scheduled
hourly at :15 in dev, prod, and the base crontab.
2026-04-21 13:19:52 -05:00
7ab426c01d
fix(workers): propagate transient errors so Oban retries + counters fire
CommonVolumeRadarWorker and MechanismClassifyWorker were both
returning :ok on upstream failures, so Prometheus job-failure counters
stayed at zero during multi-hour NEXRAD outages and classifier bugs
went unnoticed.

- CommonVolumeRadarWorker: distinguish permanent (4xx) from transient
  errors using the same pattern as RadarFrameWorker. Permanent errors
  still mark :unavailable + :ok so the backfill stops re-queueing them.
  Transient errors return {:error, reason} and leave radar_status alone
  so the next retry can succeed.
- MechanismClassifyWorker: keep the row-status :failed update so
  operators can see which contacts blew up, but return
  {:error, inspect(e)} from the rescue instead of swallowing it as :ok.
2026-04-21 13:15:27 -05:00
f9e0331a2c
test: fix three pre-existing test flakes
- MapLiveTest timestamp indicator: earlier tests in the suite leave
  score files in the shared `:propagation_scores_dir` and warm the 5 s
  `list_valid_times` cache; clear both in setup so the "No data"
  assertion sees the state the test documents.
- PropagationPruneWorkerTest: `old = now - 3h` collides with the
  worker's cutoff (also `now - 3h`) once both are truncated to the
  second, so they land equal when test + worker run in the same wall
  clock second. Shift `old` by an extra -1s for unconditional ordering.
- ContactWeatherEnqueueWorkerTest: flip to async: false — perform/1
  runs inline Oban child jobs that upsert rows with a shared conflict
  target, and parallel DataCase siblings hit "ShareLock deadlock_detected"
  intermittently.
2026-04-21 13:07:01 -05:00
733a7f5bf1
fix(review): address code-reviewer findings
Fixes flagged by the code-reviewer agent's pass over the session's
commits (cc9220b..7b78a25):

- Propagation.warm_cache_and_broadcast/2 now uses ScoresFile.read/2
  directly and returns {:ok, :ok} | {:error, :enoent | :invalid_format}.
  Previously it called ScoresFile.read_bounds/3 which silently returns
  [] on missing/corrupt files, poisoning ScoreCache with an empty grid
  that the reconciler couldn't heal.
- NotifyListener.warm_band/2 and ScoreCacheReconciler.warm_one/2 now
  pattern-match {:error, reason} and skip (log, return :error) instead
  of caching empty. rescue clauses kept as defense-in-depth for
  unexpected faults in PubSub.broadcast / ETS writes.
- ScoresFile.extract_points/2 promoted to @doc public — callers that
  need to distinguish missing file from empty grid can feed read/2
  payloads here themselves.
- Weather.build_grid_cache_row/4: replaced || fallbacks with prefer/3
  helper (Map.fetch) so a legitimate persisted ducting_detected: false
  is not clobbered by a derived-from-sounding true.
- Weather.hrrr_data_fully_present?/1 @spec tightened from map() to
  Contact.t() | field-constrained map, plus is_nil(qso_timestamp)
  guard so callers with partial contacts get a clean false rather
  than a HrrrClient.nearest_hrrr_hour/1 crash.
- AdminTaskWorker.native_derive bulk-UPDATE: chunk reduced 2000 → 500
  and wrapped in try/rescue with per-row fallback on Postgrex errors
  so a single bad row doesn't kill the remaining 1999 in its chunk.
- Runbook FM3 rewritten to match the actual code path (no rescue;
  explicit {:error, _} pattern match). FM5 clarifies the surviving
  PropagationGridWorker is a cron-fired seed worker, not a fallback
  compute path.
- Dialyzer: strict flags added (:error_handling, :unknown,
  :unmatched_returns, :extra_return, :missing_return). Baseline
  emitted 130 warnings, mostly discarded Task.start/PubSub/Logger
  returns; a follow-up will tighten those and backfill @specs.

New tests:
- ScoreCacheReconciler GenServer lifecycle: run_on_start true/false,
  interval_ms rescheduling, info-level log line.
- Weather.hrrr_data_fully_present?/1: nil qso_timestamp returns false.
- Weather.build_grid_cache_rows/2: explicit ducting_detected: false
  on profile beats derived true from sounding params.
- RadarFrameWorker: pins the NexradClient "NEXRAD n0q HTTP <code>"
  error string contract so permanent_error?/1 classification doesn't
  silently regress if the client's error format changes.
2026-04-21 10:09:46 -05:00
7b78a2574c
fix(workers): 3 bug/perf fixes from codebase review
1. GridCache: auto-release fill lock when the claimer process crashes.
   claim_fill/1 + release_fill/1 go through the GenServer so the
   server can Process.monitor the caller and clean up the ETS entry
   on :DOWN. Clear/0 now resets both the data table and the lock
   table. Fixes a latent bug where a crashed fill leaked the lock
   indefinitely, preventing every subsequent /weather mount for that
   valid_time from claiming and leaving cache cold.

2. RadarFrameWorker: distinguish permanent vs transient fetch errors.
   404 from the IEM n0q archive is permanent (file will never exist)
   and marks contacts :unavailable as before. Any other error shape
   (5xx, timeout, transport failure) now returns {:error, reason}
   so Oban retries — previously those also pinned contacts at
   :unavailable after a transient outage.

3. AdminTaskWorker.native_derive: replace per-row Repo.update_all
   (N round-trips + N fsyncs) with one UPDATE ... FROM unnest(...)
   per 2000-row batch. For the 10k-profile budget this is one
   network round trip per chunk instead of 10k, and one fsync per
   chunk instead of 10k. Restructured the clause to separate
   derivation (pure) from persistence (I/O).

All three changes are test-covered (grid_cache_test auto-release
test, radar_frame_worker_test 5xx + transport tests, existing
admin_task_worker_test native_derive coverage exercises the new
bulk path). Also drops the scorer_diff no-op test that was
verifying the clause removed in 61da51c.
2026-04-21 09:53:13 -05:00
71c134d93b
chore(cleanup): drop dead scorer_diff + DB grid fallback; harden NotifyListener
- AdminTaskWorker: remove scorer_diff no-op clause (propagation_scores table
  was dropped pre-cutover; queue is drained).
- Weather: remove load_weather_grid_from_db/1 fallback — Rust writes
  ProfilesFile for every forecast hour, so the DB path was unreachable
  in practice and loaded stale pre-cutover data when it fired.
- Weather.build_grid_cache_row/4 now prefers persisted fields from the
  ProfilesFile profile map (surface_refractivity, min_refractivity_gradient,
  ducting_detected, duct_characteristics) over re-deriving from the raw
  profile, matching the old DB-path semantics.
- NotifyListener: wrap per-band warm in try/rescue so one corrupt or
  mid-rename .ntms file doesn't abort the remaining bands. Failures log
  a warning with band + valid_time; successes still emit one info line.
- weather_grid_test: rewrite insert_hrrr_profile helper to write
  ProfilesFile directly and drop the "only returns points on 0.125 grid"
  test (filter was a property of the deleted DB fallback; Rust writes
  only grid points by construction).
2026-04-21 09:42:35 -05:00
f4f44b5ebe
refactor(contacts): rename propagation_mechanism_status -> mechanism_status
Column name now matches the type key used everywhere else:
  :hrrr -> hrrr_status, :weather -> weather_status,
  :terrain -> terrain_status, :mechanism -> mechanism_status

Drops the @status_column_overrides remap in BackfillEnqueueWorker
(status_column/1 is now a straight :"#{type}_status" derivation) and
the long-form references in Contact, ContactWeatherEnqueueWorker,
and MechanismClassifyWorker. Migration is a metadata-only RENAME
COLUMN + RENAME INDEX — safe to land in prod (no table rewrite,
brief catalog lock only).
2026-04-21 09:28:37 -05:00
33be6d008f
feat(propagation): add ScoreCacheReconciler + pipeline runbook
Periodic 60s sweep re-warms ScoreCache from /data/scores whenever
{band, valid_time} pairs are on disk but absent in local ETS.
Covers the three silent-fail modes of the NOTIFY/LISTEN path:
dropped notifies on reconnect, missing listener, and stale NFS
reads. Each pod reconciles its own cache — no PubSub fan-out,
no coordination required. Rescue on File.Error handles the
rare window where an atomic-rename write races the reader.

docs/runbook_propagation_pipeline.md names every failure mode
in the Rust↔Elixir seam and what recovers it.
2026-04-21 09:24:16 -05:00