Transactions segments are not displayed in New Relic

[barthez]

Describe the bug Transaction segments are not displayed in New Relic. I did inspect segements in NewRelic.Transaction.Reporter.complete_transaction with:

  defp inspect_segments(segments, depth \\ 0) do
    Enum.each(segments, fn %{metric_name: metric_name, children: children} ->
      indent = (0..depth) |> Enum.map(fn _ -> "│" end) |> Enum.join()
      IO.puts("#{indent}├ #{metric_name}")
      inspect_segments(children, depth + 1)
    end)
  end

Resulting:

See output

``` │├ #PID<0.1511.0> ││├ #PID<0.1514.0> ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Types.Message.-__absinthe_type__1-fun-1- ││├ Graphql.Types.Message.-__absinthe_type__1-fun-0- ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ││├ Graphql.Resolvers.Quality.resolve ││├ Graphql.Resolvers.Ability.-build1-fun-0- ││├ Graphql.Resolvers.LocalizedDateTime.resolve ││├ Graphql.Resolvers.MessageBody.resolve ```

So it seems segments are being collected, but I cannot see them in transaction details in New Relic interface.

New Relic transactions details looks like this:

Environment

• Elixir & Erlang version (elixir -v): Elixir 1.7.4 (compiled with Erlang/OTP 21)
• Agent version (mix deps | grep new_relic_agent): 1.6.2

[binaryseed]

Segment breakdowns are powered by metrics that the agent doesn't collect yet. The segments themselves are visible in Transaction Traces & as Span Events in Distributed Traces

[barthez]

So, it will show transaction breakdown if NewRelic.report_metric would be added somewhere here, am I right?

Is there anything that stops us from doing so?

[binaryseed]

No, this has to be done in the agent itself, it has to report "scoped" metrics for the segments

[tomconroy]

I'm not seeing any Transactions traces show up for absinthe queries or resolvers, not sure if I'm doing something wrong. I'm using absinthe together with phoenix, does this setup sound like it should report query resolvers as transaction traces?

1. add instrumenters: [NewRelic.Phoenix.Instrumenter] to Endpoint config
2. add use NewRelic.Phoenix.Transaction to App.Endpoint
3. add NewRelic.Absinthe.Middleware to schema middleware

does use NewRelic.Transaction need to be added somewhere?

this change seems to not do anything:

  pipeline :graphql do
+   use NewRelic.Transaction
    plug :accepts, ["json"]
    plug :fetch_session
  end

  scope "/graphql", as: :graphql do
    pipe_through [:graphql]
    forward "/", Absinthe.Plug,
      schema: App.Schema,
      before_send: {AppSchema, :before_send}
  end

[binaryseed]

Newer versions of the agents support this, just upgrade!