Bandit - 1.5.7 Request idle timeout

Questions / Help
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1

Hello everyone,

I am trying to solve connection closed errors on Oracle Load Balancer.
In load balancer I have set 60 seconds ideal timeout, But for Bandit can’t find where to adjust request idle timeout. I want to set it at least 70-75 Seconds.
Currently I have endpoint settings like this:-

## config.exs
 #Configures the endpoint
  config :my_app, MyAppWeb.Endpoint,
    url: [host: "localhost"],
    adapter: Bandit.PhoenixAdapter,
    render_errors: [
      formats: [json: MyAppWeb.ErrorJSON],
      layout: false
    ]

## runtime.exs
if config_env() == :prod do
  config :my_app, MyAppWeb.Endpoint,
    url: [host: host, port: 443, scheme: "https"],
    http: [
      ip: {0, 0, 0, 0, 0, 0, 0, 0},
      port: port,
      thousand_island_options: [
        transport_options: [
          keepalive: true
        ],
        read_timeout: 80_000,
      ],
    ],
    debug_errors: false,
    check_origin: {MyApp.OriginCheck, :check_origin?, []},
    secret_key_base: secret_key_base
end

OS: Ubuntu 22.04
Elixir: 1.17.1
Erlang: Erlang/OTP 27 [erts-15.0]
Bandit: 1.5.7
thousand_island: 1.3.5
phoenix: 1.7.14

Thanks in advance.

2

As far as I know Bandit doesn’t have an idle timeout for request handling code. It will not stop you from sleeping forever and never sending a response. Any such timeouts will have to be enforced on your code by your own code.

3

Hello @joram,
Thank you for responding.
So does it mean that Bandit doesn’t close TCP connection at all?

4

Bandit won’t close the connection while your request handling code is running. Outside of that I think it just depends on the Thousand Island settings (your keepalive and read_timeout settings).

5

Okay,
I thought read_timeout is for how long to wait for body read.
I will tag Thousand Island also. May be will know exactly.

6

It is. I think I misremembered, read_timeout doesn’t seem relevant.