450 lines
14 KiB
Elixir
450 lines
14 KiB
Elixir
defmodule Aprsme.PacketConsumer do
|
|
@moduledoc """
|
|
GenStage consumer that batches APRS packets and inserts them into the database
|
|
efficiently to reduce database load.
|
|
"""
|
|
use GenStage
|
|
|
|
alias Aprsme.LogSanitizer
|
|
alias Aprsme.Repo
|
|
|
|
require Logger
|
|
|
|
def start_link(opts \\ []) do
|
|
GenStage.start_link(__MODULE__, opts, name: __MODULE__)
|
|
end
|
|
|
|
@impl true
|
|
def init(opts) do
|
|
batch_size = opts[:batch_size] || 100
|
|
batch_timeout = opts[:batch_timeout] || 1000
|
|
# Maximum batch size to prevent unbounded memory growth
|
|
max_batch_size = opts[:max_batch_size] || 1000
|
|
|
|
# Start a timer for batch processing
|
|
timer = Process.send_after(self(), :process_batch, batch_timeout)
|
|
|
|
{:consumer,
|
|
%{
|
|
batch: [],
|
|
batch_size: batch_size,
|
|
batch_timeout: batch_timeout,
|
|
max_batch_size: max_batch_size,
|
|
timer: timer
|
|
}}
|
|
end
|
|
|
|
@impl true
|
|
def handle_events(events, _from, %{batch: batch, batch_size: batch_size, max_batch_size: max_batch_size} = state) do
|
|
new_batch = batch ++ events
|
|
new_batch_length = length(new_batch)
|
|
|
|
cond do
|
|
new_batch_length >= max_batch_size ->
|
|
# If batch exceeds maximum size, process immediately and drop excess
|
|
{process_batch, drop_batch} = Enum.split(new_batch, max_batch_size)
|
|
process_batch(process_batch)
|
|
|
|
# Log warning about dropping packets (sanitized)
|
|
if length(drop_batch) > 0 do
|
|
Logger.warning("Dropped #{length(drop_batch)} packets due to batch size limit",
|
|
batch_info:
|
|
LogSanitizer.log_data(
|
|
dropped_count: length(drop_batch),
|
|
processed_count: length(process_batch),
|
|
reason: "batch_size_limit_exceeded"
|
|
)
|
|
)
|
|
end
|
|
|
|
{:noreply, [], %{state | batch: []}}
|
|
|
|
new_batch_length >= batch_size ->
|
|
# Process the batch immediately
|
|
process_batch(new_batch)
|
|
{:noreply, [], %{state | batch: []}}
|
|
|
|
true ->
|
|
# Add to batch and wait for more
|
|
{:noreply, [], %{state | batch: new_batch}}
|
|
end
|
|
end
|
|
|
|
@impl true
|
|
def handle_info(:process_batch, %{batch: batch, batch_timeout: timeout, max_batch_size: max_batch_size} = state) do
|
|
if length(batch) > 0 do
|
|
# Check if batch size is concerning
|
|
if length(batch) > max_batch_size * 0.8 do
|
|
Logger.warning("Batch size approaching limit",
|
|
batch_status:
|
|
LogSanitizer.log_data(
|
|
current_size: length(batch),
|
|
max_size: max_batch_size,
|
|
utilization_percent: trunc(length(batch) / max_batch_size * 100)
|
|
)
|
|
)
|
|
end
|
|
|
|
process_batch(batch)
|
|
end
|
|
|
|
# Start a new timer
|
|
timer = Process.send_after(self(), :process_batch, timeout)
|
|
{:noreply, [], %{state | batch: [], timer: timer}}
|
|
end
|
|
|
|
defp process_batch(packets) do
|
|
require Logger
|
|
|
|
# Monitor memory usage before processing
|
|
{memory_before, _} = :erlang.statistics(:runtime)
|
|
start_time = System.monotonic_time(:millisecond)
|
|
|
|
results =
|
|
packets
|
|
|> Enum.chunk_every(50)
|
|
|> Enum.map(&process_chunk/1)
|
|
|
|
{success_count, error_count} =
|
|
Enum.reduce(results, {0, 0}, fn {success, error}, {total_success, total_error} ->
|
|
{total_success + success, total_error + error}
|
|
end)
|
|
|
|
end_time = System.monotonic_time(:millisecond)
|
|
duration = end_time - start_time
|
|
|
|
# Monitor memory usage after processing
|
|
{memory_after, _} = :erlang.statistics(:runtime)
|
|
memory_diff = memory_after - memory_before
|
|
|
|
# Force garbage collection if memory usage is high
|
|
# 50MB threshold
|
|
if memory_diff > 50_000 do
|
|
:erlang.garbage_collect()
|
|
|
|
Logger.warning("High memory usage detected, forced garbage collection",
|
|
memory_info:
|
|
LogSanitizer.log_data(
|
|
memory_diff_bytes: memory_diff,
|
|
batch_size: length(packets),
|
|
gc_forced: true
|
|
)
|
|
)
|
|
end
|
|
|
|
:telemetry.execute(
|
|
[
|
|
:aprsme,
|
|
:packet_pipeline,
|
|
:batch
|
|
],
|
|
%{
|
|
count: length(packets),
|
|
success: success_count,
|
|
error: error_count,
|
|
duration_ms: duration,
|
|
memory_diff: memory_diff
|
|
},
|
|
%{}
|
|
)
|
|
|
|
Logger.info("Batch processing completed",
|
|
batch_result:
|
|
LogSanitizer.log_data(
|
|
packet_count: length(packets),
|
|
duration_ms: duration,
|
|
success_count: success_count,
|
|
error_count: error_count,
|
|
memory_diff_bytes: memory_diff
|
|
)
|
|
)
|
|
end
|
|
|
|
defp process_chunk(packets) do
|
|
# Prepare packets for batch insertion
|
|
packet_attrs =
|
|
packets
|
|
|> Enum.map(&prepare_packet_for_insert/1)
|
|
# Ensure truncation here
|
|
|> Enum.map(&truncate_datetimes_to_second/1)
|
|
|
|
# Filter out invalid packets
|
|
{valid_packets, invalid_packets} = Enum.split_with(packet_attrs, &valid_packet?/1)
|
|
|
|
# Insert valid packets in batch
|
|
case Repo.insert_all(Aprsme.Packet, valid_packets, returning: [:id]) do
|
|
{:error, error} ->
|
|
Logger.error("Batch insert failed: #{inspect(error)}")
|
|
{0, length(packets)}
|
|
|
|
{inserted_count, _} ->
|
|
error_count = Enum.count(invalid_packets)
|
|
{inserted_count, error_count}
|
|
end
|
|
end
|
|
|
|
defp prepare_packet_for_insert(packet_data) do
|
|
# Always set received_at timestamp to ensure consistency
|
|
current_time = DateTime.truncate(DateTime.utc_now(), :microsecond)
|
|
packet_data = Map.put(packet_data, :received_at, current_time)
|
|
|
|
# Convert to map before storing to avoid struct conversion issues
|
|
attrs = struct_to_map(packet_data)
|
|
|
|
# Extract additional data from the parsed packet including raw packet
|
|
attrs = Aprsme.Packet.extract_additional_data(attrs, attrs[:raw_packet] || "")
|
|
|
|
# Normalize data_type to string if it's an atom
|
|
attrs = normalize_data_type(attrs)
|
|
|
|
# Apply the same processing as the original store_packet function
|
|
attrs
|
|
|> normalize_packet_attrs()
|
|
|> set_received_at()
|
|
|> patch_lat_lon_from_data_extended()
|
|
|> then(fn attrs ->
|
|
{lat, lon} = extract_position(attrs)
|
|
set_lat_lon(attrs, lat, lon)
|
|
end)
|
|
|> normalize_ssid()
|
|
|> then(fn attrs ->
|
|
device_identifier = Aprsme.DeviceParser.extract_device_identifier(packet_data)
|
|
matched_device = Aprsme.DeviceIdentification.lookup_device_by_identifier(device_identifier)
|
|
canonical_identifier = if matched_device, do: matched_device.identifier, else: device_identifier
|
|
Map.put(attrs, :device_identifier, canonical_identifier)
|
|
end)
|
|
|> sanitize_packet_strings()
|
|
|> Map.put(:inserted_at, current_time)
|
|
|> Map.put(:updated_at, current_time)
|
|
|> Map.delete(:id)
|
|
|> Map.delete("id")
|
|
# Remove embedded field for batch insert
|
|
|> Map.delete(:data_extended)
|
|
|> normalize_numeric_types()
|
|
|> sanitize_raw_packet()
|
|
|> then(fn attrs -> Map.new(attrs, fn {k, v} -> {k, sanitize_packet_strings(v)} end) end)
|
|
|> truncate_datetimes_to_second()
|
|
# Explicitly remove raw_weather_data to prevent insert_all errors
|
|
|> Map.delete(:raw_weather_data)
|
|
|> Map.delete("raw_weather_data")
|
|
# Create PostGIS geometry for location field
|
|
|> create_location_geometry()
|
|
rescue
|
|
error ->
|
|
Logger.error("Failed to prepare packet for batch insert: #{inspect(error)}")
|
|
nil
|
|
end
|
|
|
|
# Create PostGIS geometry from lat/lon coordinates
|
|
defp create_location_geometry(attrs) do
|
|
lat = attrs[:lat]
|
|
lon = attrs[:lon]
|
|
|
|
if valid_coordinates?(lat, lon) do
|
|
location = create_point(lat, lon)
|
|
|
|
if location do
|
|
Map.put(attrs, :location, location)
|
|
else
|
|
attrs
|
|
end
|
|
else
|
|
attrs
|
|
end
|
|
end
|
|
|
|
# Helper functions for coordinate validation and point creation
|
|
defp valid_coordinates?(lat, lon) do
|
|
lat = normalize_coordinate(lat)
|
|
lon = normalize_coordinate(lon)
|
|
|
|
is_number(lat) && is_number(lon) &&
|
|
lat >= -90 && lat <= 90 &&
|
|
lon >= -180 && lon <= 180
|
|
end
|
|
|
|
defp normalize_coordinate(%Decimal{} = decimal), do: Decimal.to_float(decimal)
|
|
defp normalize_coordinate(coord), do: coord
|
|
|
|
defp create_point(lat, lon)
|
|
when (is_number(lat) or is_struct(lat, Decimal)) and (is_number(lon) or is_struct(lon, Decimal)) do
|
|
lat = normalize_coordinate(lat)
|
|
lon = normalize_coordinate(lon)
|
|
|
|
if valid_coordinates?(lat, lon) do
|
|
%Geo.Point{coordinates: {lon, lat}, srid: 4326}
|
|
end
|
|
end
|
|
|
|
defp create_point(_, _), do: nil
|
|
|
|
defp valid_packet?(nil), do: false
|
|
defp valid_packet?(%{sender: sender}) when is_binary(sender) and byte_size(sender) > 0, do: true
|
|
defp valid_packet?(_), do: false
|
|
|
|
# Helper functions copied from Packets module for consistency
|
|
defp normalize_packet_attrs(attrs) do
|
|
attrs
|
|
|> Map.put_new(:base_callsign, attrs[:sender])
|
|
|> Map.put_new(:data_type, "unknown")
|
|
|> Map.put_new(:destination, "")
|
|
|> Map.put_new(:information_field, "")
|
|
|> Map.put_new(:path, "")
|
|
|> Map.put_new(:ssid, "")
|
|
|> Map.put_new(:data_extended, %{})
|
|
end
|
|
|
|
defp set_received_at(attrs) do
|
|
received_at = attrs[:received_at] || DateTime.utc_now()
|
|
Map.put(attrs, :received_at, received_at)
|
|
end
|
|
|
|
defp patch_lat_lon_from_data_extended(attrs) do
|
|
case attrs[:data_extended] do
|
|
%{latitude: lat, longitude: lon} when not is_nil(lat) and not is_nil(lon) ->
|
|
attrs
|
|
|> Map.put(:lat, lat)
|
|
|> Map.put(:lon, lon)
|
|
|> Map.put(:has_position, true)
|
|
|
|
_ ->
|
|
attrs
|
|
end
|
|
end
|
|
|
|
defp extract_position(packet_data) do
|
|
if not is_nil(packet_data[:lat]) and not is_nil(packet_data[:lon]) do
|
|
{to_float(packet_data.lat), to_float(packet_data.lon)}
|
|
else
|
|
extract_position_from_data_extended(packet_data[:data_extended])
|
|
end
|
|
end
|
|
|
|
defp extract_position_from_data_extended(nil), do: {nil, nil}
|
|
|
|
defp extract_position_from_data_extended(data_extended) when is_map(data_extended) do
|
|
if has_standard_position?(data_extended) do
|
|
extract_standard_position(data_extended)
|
|
else
|
|
extract_position_from_data_extended_case(data_extended)
|
|
end
|
|
end
|
|
|
|
defp extract_position_from_data_extended(_), do: {nil, nil}
|
|
|
|
defp has_standard_position?(data_extended) when is_map(data_extended) and not is_struct(data_extended) do
|
|
not is_nil(data_extended[:latitude]) and not is_nil(data_extended[:longitude])
|
|
end
|
|
|
|
defp has_standard_position?(_), do: false
|
|
|
|
defp extract_standard_position(data_extended) when is_map(data_extended) and not is_struct(data_extended) do
|
|
{to_float(data_extended[:latitude]), to_float(data_extended[:longitude])}
|
|
end
|
|
|
|
defp extract_standard_position(_), do: {nil, nil}
|
|
|
|
defp extract_position_from_data_extended_case(data_extended) do
|
|
lat = extract_lat_from_ext_map(data_extended)
|
|
lon = extract_lon_from_ext_map(data_extended)
|
|
{to_float(lat), to_float(lon)}
|
|
end
|
|
|
|
defp extract_lat_from_ext_map(ext_map) do
|
|
ext_map[:latitude] || ext_map["latitude"] ||
|
|
(Map.has_key?(ext_map, :position) &&
|
|
(ext_map[:position][:latitude] || ext_map[:position]["latitude"])) ||
|
|
(Map.has_key?(ext_map, "position") &&
|
|
(ext_map["position"][:latitude] || ext_map["position"]["latitude"]))
|
|
end
|
|
|
|
defp extract_lon_from_ext_map(ext_map) do
|
|
ext_map[:longitude] || ext_map["longitude"] ||
|
|
(Map.has_key?(ext_map, :position) &&
|
|
(ext_map[:position][:longitude] || ext_map[:position]["longitude"])) ||
|
|
(Map.has_key?(ext_map, "position") &&
|
|
(ext_map["position"][:longitude] || ext_map["position"]["longitude"]))
|
|
end
|
|
|
|
defp set_lat_lon(attrs, lat, lon) do
|
|
round6 = fn
|
|
nil ->
|
|
nil
|
|
|
|
n when is_float(n) ->
|
|
Float.round(n, 6)
|
|
end
|
|
|
|
attrs
|
|
|> Map.put(:lat, round6.(lat))
|
|
|> Map.put(:lon, round6.(lon))
|
|
|> Map.put(:has_position, not is_nil(lat) and not is_nil(lon))
|
|
end
|
|
|
|
defp normalize_ssid(attrs) do
|
|
case Map.get(attrs, :ssid) do
|
|
nil -> attrs
|
|
ssid -> Map.put(attrs, :ssid, to_string(ssid))
|
|
end
|
|
end
|
|
|
|
defp sanitize_packet_strings(value), do: Aprsme.EncodingUtils.sanitize_packet_strings(value)
|
|
|
|
defp to_float(value), do: Aprsme.EncodingUtils.to_float(value)
|
|
|
|
defp normalize_data_type(attrs), do: Aprsme.EncodingUtils.normalize_data_type(attrs)
|
|
|
|
defp struct_to_map(%{__struct__: struct_type} = struct) do
|
|
converted_map =
|
|
struct
|
|
|> Map.from_struct()
|
|
|> Map.new(fn {k, v} -> {k, struct_to_map(v)} end)
|
|
|
|
Map.put(converted_map, :__original_struct__, struct_type)
|
|
end
|
|
|
|
defp struct_to_map(value) when is_list(value) do
|
|
Enum.map(value, &struct_to_map/1)
|
|
end
|
|
|
|
defp struct_to_map(value), do: value
|
|
|
|
defp truncate_datetimes_to_second(%DateTime{} = dt), do: DateTime.truncate(dt, :second)
|
|
defp truncate_datetimes_to_second({:ok, %DateTime{} = dt}), do: DateTime.truncate(dt, :second)
|
|
|
|
defp truncate_datetimes_to_second(term) when is_map(term) and not is_struct(term) do
|
|
Map.new(term, fn {k, v} -> {k, truncate_datetimes_to_second(v)} end)
|
|
end
|
|
|
|
defp truncate_datetimes_to_second(list) when is_list(list), do: Enum.map(list, &truncate_datetimes_to_second/1)
|
|
defp truncate_datetimes_to_second(other), do: other
|
|
|
|
defp normalize_numeric_types(attrs) do
|
|
# Convert integer values to floats for float fields
|
|
float_fields = [
|
|
:temperature,
|
|
:humidity,
|
|
:wind_speed,
|
|
:wind_gust,
|
|
:pressure,
|
|
:rain_1h,
|
|
:rain_24h,
|
|
:rain_since_midnight,
|
|
:snow,
|
|
:speed,
|
|
:altitude
|
|
]
|
|
|
|
Enum.reduce(float_fields, attrs, fn field, acc ->
|
|
case Map.get(acc, field) do
|
|
value when is_integer(value) -> Map.put(acc, field, value * 1.0)
|
|
_ -> acc
|
|
end
|
|
end)
|
|
end
|
|
|
|
defp sanitize_raw_packet(attrs) do
|
|
# Use the exact same sanitization approach as the original working code
|
|
sanitize_packet_strings(attrs)
|
|
end
|
|
end
|