Getting session on a node from another node

Phoenix Forum Questions / Help
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1

Hello, I am Elixir novice. I am writing a phoenix based application.
Is it able to find that user is connected on a node from another node in a cluster?

2

As I do understand you, it seems as if you are seeking for presence.

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3

Thank you for the information. Would it be bad idea if I use that for session authentication across cluster? Situation like… I use sticky session behind load balancer, and adding a node there, process continuously without rebalancing or other jobs.

4

In such a scenario, would it be better to use token based authentication over session based authentication?

There would be no need to store anything in the cluster…

5

Thank you for the information. I need to push back to clients. Would I need something extra storage like ETS or Redis to solve this?

6

Phoenix includes websocket, if that is what You mean by push back to clients.

You can have multiple channels on this socket. In particular, You could define a user channel, on which server could push user specific data.

Under the hood, channels are powered by pg2.

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7

Thank you for the kind explanation. Really helpful for me!