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New Relic's Open-Source Elixir Agent
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Files
lib/new_relic/tracer/report.ex
defmodule NewRelic.Tracer.Report do
alias NewRelic.Transaction
# Helper functions that will report traced function events in their various forms
# - Transaction Trace segments
# - Distributed Trace spans
# - Transaction attributes
# - Metrics
# - Aggregate metric-like NRDB events
@moduledoc false
def call(
{module, function, args},
{name, category: :datastore},
pid,
{start_time, start_time_mono, end_time_mono}
) do
duration_ms = duration_ms(start_time_mono, end_time_mono)
duration_s = duration_ms / 1000
arity = length(args)
Transaction.Reporter.add_trace_segment(%{
module: module,
function: function,
arity: arity,
name: name,
args: args,
pid: pid,
start_time: start_time,
start_time_mono: start_time_mono,
end_time_mono: end_time_mono
})
NewRelic.report_span(
timestamp_ms: start_time,
duration_s: duration_s,
name: function_name({module, function, arity}, name),
mfa: {module, function, arity},
category: "datastore",
attributes: Map.put(NewRelic.DistributedTrace.get_span_attrs(), :args, inspect(args))
)
NewRelic.incr_attributes(
timestamp_ms: System.convert_time_unit(start_time, :native, :milliseconds),
datastore_call_count: 1,
datastore_duration_ms: duration_ms,
"datastore.#{function_name({module, function}, name)}.call_count": 1,
"datastore.#{function_name({module, function}, name)}.duration_ms": duration_ms
)
NewRelic.report_aggregate(
%{
name: :FunctionTrace,
mfa: function_name({module, function, arity}, name),
metric_category: :datastore
},
%{duration_ms: duration_ms, call_count: 1}
)
NewRelic.report_metric(
{:datastore, "/#{function_name({module, function}, name)}"},
duration_s: duration_s
)
end
def call(
{module, function, args},
{name, category: :external},
pid,
{start_time, start_time_mono, end_time_mono}
) do
duration_ms = duration_ms(start_time_mono, end_time_mono)
duration_s = duration_ms / 1000
arity = length(args)
Transaction.Reporter.add_trace_segment(%{
module: module,
function: function,
arity: arity,
name: name,
args: args,
pid: pid,
start_time: start_time,
start_time_mono: start_time_mono,
end_time_mono: end_time_mono
})
NewRelic.report_span(
timestamp_ms: System.convert_time_unit(start_time, :native, :milliseconds),
duration_s: duration_s,
name: function_name({module, function, arity}, name),
mfa: {module, function, arity},
category: "http",
attributes: Map.put(NewRelic.DistributedTrace.get_span_attrs(), :args, inspect(args))
)
NewRelic.incr_attributes(
external_call_count: 1,
external_duration_ms: duration_ms,
"external.#{function_name({module, function}, name)}.call_count": 1,
"external.#{function_name({module, function}, name)}.duration_ms": duration_ms
)
NewRelic.report_aggregate(
%{
name: :FunctionTrace,
mfa: function_name({module, function, arity}, name),
metric_category: :external
},
%{duration_ms: duration_ms, call_count: 1}
)
NewRelic.report_metric(
{:external, "/#{function_name({module, function}, name)}"},
duration_s: duration_s
)
end
def call({module, function, args}, name, pid, {start_time, start_time_mono, end_time_mono})
when is_atom(name) do
duration_ms = duration_ms(start_time_mono, end_time_mono)
duration_s = duration_ms / 1000
arity = length(args)
Transaction.Reporter.add_trace_segment(%{
module: module,
function: function,
arity: arity,
name: name,
args: args,
pid: pid,
start_time: start_time,
start_time_mono: start_time_mono,
end_time_mono: end_time_mono
})
NewRelic.report_span(
timestamp_ms: System.convert_time_unit(start_time, :native, :milliseconds),
duration_s: duration_s,
name: function_name({module, function, arity}, name),
mfa: {module, function, arity},
category: "generic",
attributes: Map.put(NewRelic.DistributedTrace.get_span_attrs(), :args, inspect(args))
)
NewRelic.report_aggregate(
%{name: :FunctionTrace, mfa: function_name({module, function, arity}, name)},
%{duration_ms: duration_ms, call_count: 1}
)
end
def duration_ms(start_time_mono, end_time_mono),
do: System.convert_time_unit(end_time_mono - start_time_mono, :native, :milliseconds)
defp function_name({m, f}, f), do: "#{inspect(m)}.#{f}"
defp function_name({m, f}, i), do: "#{inspect(m)}.#{f}:#{i}"
defp function_name({m, f, a}, f), do: "#{inspect(m)}.#{f}/#{a}"
defp function_name({m, f, a}, i), do: "#{inspect(m)}.#{f}:#{i}/#{a}"
end