livebook/lib/live_book/application.ex
Jonatan Kłosko 79e5c432b3
Move evaluation to a separate Elixir runtime (#20)
* Isolate evaluation in separate node for each session

* Start new remote upon first evaluation and handle nodedown

* Add UI for managing evaluation node, improve naming and structure

* Show runtime initialization errors and some fixes

* Improve standalone node initialization

* Correctly handle multiple sessions connecting to the same node

* Fix session tests concerning evaluation

* Documentation and some refactoring

* Various improvements

* Configure schedulers to get to sleep immediately after evaluation

* Move EvaluatorSpervisor into the Remote namespace

* Fix evaluators cleanup

* Add tests

* Improve flash messages

* Introduce remote genserver taking care of cleanup

* Redefine the Runtime protocol to serve as an interface for evaluation

* Cleanup operations

* Use reference for communication with a standalone node

* Use shortnames for distribution by default

* Update node configuration and make sure epmd is running

* Rename Remote to ErlDist
2021-02-11 12:42:17 +01:00

42 lines
1.2 KiB
Elixir

defmodule LiveBook.Application do
# See https://hexdocs.pm/elixir/Application.html
# for more information on OTP Applications
@moduledoc false
use Application
def start(_type, _args) do
ensure_distribution()
children = [
# Start the Telemetry supervisor
LiveBookWeb.Telemetry,
# Start the PubSub system
{Phoenix.PubSub, name: LiveBook.PubSub},
# Start the supervisor dynamically managing sessions
LiveBook.SessionSupervisor,
# Start the Endpoint (http/https)
LiveBookWeb.Endpoint
]
# See https://hexdocs.pm/elixir/Supervisor.html
# for other strategies and supported options
opts = [strategy: :one_for_one, name: LiveBook.Supervisor]
Supervisor.start_link(children, opts)
end
# Tell Phoenix to update the endpoint configuration
# whenever the application is updated.
def config_change(changed, _new, removed) do
LiveBookWeb.Endpoint.config_change(changed, removed)
:ok
end
defp ensure_distribution() do
unless Node.alive?() do
System.cmd("epmd", ["-daemon"])
{type, name} = Application.fetch_env!(:live_book, :node_name)
Node.start(name, type)
end
end
end