addition to ActionCable documentation re: application servers with multiple workers

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Jon Beyer

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Mar 29, 2019, 4:25:42 AM3/29/19
to Ruby on Rails: Documentation
Hi guys,

I would try adding this note to the ActionCable documentation, but I don't think I could find the perfect words, and also wouldn't be certain how to generalize the issue beyond my specific situation (i.e. I was using Puma, but I'm not sure how other application servers would be affected by this).

I spent a few hours banging my head on the wall with ActionCable because I was using async in development mode with Puma and had multiple workers.  Depending on which worker each javascript client was connecting to, they were effectively in siloed subscriptions.

Thanks,
Jon
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