Threading error when using `ActiveRecord with_connection do` & ActionController::Live

by

Warning: read ‘answer’ as ‘seems to make a difference’

I don’t see the issue happen if I change the controller block to look like:

begin
  #...
  while true do
    t = Thread.new do #<<<<<<<<<<<<<<<<<
        ActiveRecord::Base.connection_pool.with_connection do |conn|
            #...
        end
     end
     t.join #<<<<<<<<<<<<<<<<<
  end
  #...
rescue IOError
#...

But I don’t know whether this has actually solved the problem or just made it extremely unlikely. Nor can I really fathom why this would make a difference.

Posting this as a solution in case it helps, but still digging on the issue.

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