Graham McIntire
4e6c87eca2
Adds spans to 15 previously-unmeasured hot paths so every question we might ask while tuning has a histogram to answer it: External I/O: - iem.fetch_iemre (gridded weather reanalysis) - mrms.list_latest / mrms.download (precip radar) - rtma.fetch_observation - ncei.fetch_metar (historical 5-min METAR backfill) - solar.fetch_indices (GFZ solar indices) - swpc.fetch (SWPC Kp/F10.7/X-ray) - giro.fetch (ionosonde) - qrz.request, geocoder.geocode (callsign enrichment) - srtm.download_tile (terrain tile download + gunzip) - hrrr.download_grib_ranges (parallel byte-range fetch phase) Subprocess: - wgrib2.extract_grid / extract_grid_from_file / extract_grid_from_file_mapped LiveView hot paths: - propagation.scores_at (map score fetch + cache hit/miss counter) - propagation.point_forecast (sparkline) - propagation.point_detail (click-to-inspect) - propagation.daily_outlook_at (/map outlook strip) Worker-level end-to-end: - worker.terrain_profile - worker.mechanism_classify - worker.mrms_fetch Each event is registered in Microwaveprop.PromEx.InstrumentPlugin as a Prometheus histogram (default / long buckets as appropriate) plus a counter for the scores_at cache hit/miss ratio. Prometheus at 10.0.15.25 will start seeing the new series on the next scrape after deploy.
45 lines
1.4 KiB
Elixir
45 lines
1.4 KiB
Elixir
defmodule Microwaveprop.Geocoder do
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@moduledoc """
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Thin wrapper around the Google Maps Geocoding API. Only used as a
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fallback when QRZ's own `<lat>` / `<lon>` fields are missing on a
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callsign record.
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"""
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@spec geocode(String.t()) :: {:ok, %{lat: float(), lon: float()}} | {:error, String.t()}
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def geocode(address) do
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Microwaveprop.Instrument.span([:geocoder, :geocode], %{}, fn ->
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case Req.get(client(),
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url: "/maps/api/geocode/json",
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params: [address: address, key: api_key()]
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) do
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{:ok, %{status: 200, body: %{"status" => "OK", "results" => [first | _]}}} ->
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%{"geometry" => %{"location" => %{"lat" => lat, "lng" => lon}}} = first
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{:ok, %{lat: lat, lon: lon}}
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{:ok, %{status: 200, body: %{"status" => "ZERO_RESULTS"}}} ->
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{:error, "No results found"}
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{:ok, %{status: 200, body: %{"status" => status}}} ->
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{:error, "Geocoding failed: #{status}"}
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{:error, reason} ->
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{:error, "Geocoding request failed: #{inspect(reason)}"}
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end
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end)
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end
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defp client do
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config = Application.get_env(:microwaveprop, __MODULE__, [])
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[base_url: "https://maps.googleapis.com"]
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|> Req.new()
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|> Req.Request.register_options([:plug, :api_key])
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|> Req.merge(config)
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end
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defp api_key do
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:microwaveprop
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|> Application.get_env(__MODULE__, [])
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|> Keyword.get(:api_key, "")
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end
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end
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