Running Phoenix projects on two nodes (laptops)

Phoenix Forum Questions / Help
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1

Hi guys.

I’m trying to run my phoenix app on 2 notebooks (ubuntu) in same time (distributed programming).
My goal is: Run application from 2 nodes(independent notebooks) in same time (it should increase throughput)

I found this article:

I created sys.config file:

[{kernel,
  [
    {sync_nodes_optional, ['n1@127.0.0.1', 'n2@127.0.0.1']},
    {sync_nodes_timeout, 10000}
  ]}
].

Then I made release:
http://www.phoenixframework.org/docs/advanced-deployment

When I run application from release I can see error on console->

[error] Could not check origin for Phoenix.Socket transport.

This happens when you are attempting a socket connection to
a different host than the one configured in your config/
files. For example, in development the host is configured
to "localhost" but you may be trying to access it from
"127.0.0.1". To fix this issue, you may either:

  1. update [url: [host: ...]] to your actual host in the
     config file for your current environment (recommended)

  2. pass the :check_origin option when configuring your
     endpoint or when configuring the transport in your
     UserSocket module, explicitly outlining which origins
     are allowed:

        check_origin: ["https://example.com",
                       "//another.com:888", "//other.com"]

But I need only test it in my local network (nooteboks are connected via wifi)

In prod.exs file I have url set to:
url: [host: "example.com"],

But what should I do next? How should I run application from third device ? (load should be splited into these 2 notebooks)

Thanks

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2

I belive url: [host: "example.com"], should be set to your local IPs

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3

I changes url to:
url: [host: "192.168.43.236"],

(it is IP of notebook1)

Then I make release again, start server from notebook1:
~/Documents/re/chatier$ bin/chatier console

Then I copy .tar.gz release to notebook2, run same command and I can see error message:

Protocol 'inet_tcp': the name chatier@127.0.0.1 seems to be in use by another Erlang node

but I can acces server from any device in network on url:
192.168.43.236:8888

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