When HTTP2 connection turns to read_only, it's not recovered

[nallwhy]

When my HTTP2 connection turns to read_only, it keeps return read_only error until I restart my app.

{:error, %{reason: :read_only}}

Setting:

defmodule MyApp.Application do
  use Application

  def start(_type, _args) do
    children = [
      {Finch,
       name: MyApp.FintchPool,
       pools: %{
         :default => [protocol: :http2]
       }}
    ]

    Supervisor.start_link(children, strategy: :one_for_one, name: MyApp.Supervisor)
  end
end

[sneako]

Thanks for the report @nallwhy. I can confirm this is an issue and we will have to find some time to look into it

[keathley]

I can take a look into this. We need to get some pbt around that since there are a bunch of ways to end up in a bad states like this.

[nallwhy]

I guess that closing connection from host makes state of connection to read_only, and reconnection doesn't work.
I use finch to call google API.

[rhpts]

BTW, when the HTTP2 connections gets into the {:error, %{reason: :read_only}} state, is it possible to restart the :finch application via the console (iex or remsh)?

[nallwhy]

I no longer have this problem.