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new_relic_agent
1.20.0-rc.1
1.40.3
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1.34.0
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1.31.1
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1.28.0
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1.22.1
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1.21.0
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1.20.0-rc.1
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1.19.3
1.19.2
1.19.1
1.19.0
1.18.5
1.18.4
1.18.3
1.18.2
1.18.1
1.18.0
1.18.0-rc.5
1.18.0-rc.4
1.18.0-rc.2
1.18.0-rc.1
1.17.1
1.17.0
1.17.0-rc.4
1.17.0-rc.3
1.17.0-rc.2
1.17.0-rc.1
1.17.0-rc.0
1.16.7
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1.16.4
1.16.3
1.16.2
1.16.1
1.16.0
1.16.0-rc.2
1.16.0-rc.1
1.16.0-rc.0
1.15.0
1.15.0-rc.3
1.15.0-rc.2
1.15.0-rc.1
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1.13.1
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1.12.0
1.11.0
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1.9.12
1.9.11
1.9.10
1.9.9
1.9.8
1.9.7
1.9.6
1.9.5
1.9.4
1.9.3
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1.9.1
1.9.0
1.8.0
1.7.0
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1.6.1
1.6.0
1.5.0
1.4.0
1.3.2
1.3.1
1.3.0
1.2.1
1.2.0
1.1.0
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1.0.4
1.0.3
1.0.2
1.0.1
1.0.0
New Relic's Open-Source Elixir Agent
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Files
lib/new_relic/harvest/telemetry_sdk/logs/harvester.ex
defmodule NewRelic.Harvest.TelemetrySdk.Logs.Harvester do
use GenServer
@moduledoc false
alias NewRelic.Harvest
alias NewRelic.Harvest.TelemetrySdk
def start_link(_) do
GenServer.start_link(__MODULE__, [])
end
def init(_) do
{:ok,
%{
start_time: System.system_time(),
start_time_mono: System.monotonic_time(),
end_time_mono: nil,
sampling: %{
reservoir_size: Application.get_env(:new_relic_agent, :log_reservior_size, 5_000),
logs_seen: 0
},
logs: []
}}
end
# API
def report_log(log),
do:
TelemetrySdk.Logs.HarvestCycle
|> Harvest.HarvestCycle.current_harvester()
|> GenServer.cast({:report, log})
def gather_harvest,
do:
TelemetrySdk.Logs.HarvestCycle
|> Harvest.HarvestCycle.current_harvester()
|> GenServer.call(:gather_harvest)
def handle_cast(_late_msg, :completed), do: {:noreply, :completed}
def handle_cast({:report, log}, state) do
state =
state
|> store_log(log)
|> store_sampling
{:noreply, state}
end
def handle_call(_late_msg, _from, :completed), do: {:reply, :completed, :completed}
def handle_call(:send_harvest, _from, state) do
send_harvest(%{state | end_time_mono: System.monotonic_time()})
{:reply, :ok, :completed}
end
def handle_call(:gather_harvest, _from, state) do
{:reply, build_log_data(state.logs), state}
end
# Helpers
def store_log(%{sampling: %{logs_seen: seen, reservoir_size: size}} = state, log)
when seen < size,
do: %{state | logs: [log | state.logs]}
def store_log(state, _log),
do: state
def store_sampling(%{sampling: sampling} = state),
do: %{state | sampling: Map.update!(sampling, :logs_seen, &(&1 + 1))}
def send_harvest(state) do
TelemetrySdk.API.log(build_log_data(state.logs))
log_harvest(length(state.logs))
end
def log_harvest(harvest_size) do
NewRelic.log(:debug, "Completed Log harvest - size: #{harvest_size}")
end
defp build_log_data(logs) do
[
%{
logs: logs,
common: common()
}
]
end
defp common() do
%{
attributes: NewRelic.LogsInContext.linking_metadata()
}
end
end