Eileen

I have to revert the change that fixed this. I realize it's been a year but this hasn't been in any released version of Rails and a few issues have...

If you have multiple databases creating a new abstract class isn't going to be that many more steps than if we made an abstract class. App users would still need...

When I run `rake compile` in psych `with_config("libyaml-source-dir")` returns `nil` and `enable_config("bundled-libyaml", false)` returns false so my machine falls through to configuring yaml from source here https://github.com/ruby/psych/blob/master/ext/psych/extconf.rb#L33-L55. So when building...

> Doesn’t make extract-extlubs after configure make ext/psych/yaml-2.5? I think you meant extlibs but I'm sure what's not working right. When `tool/extlibs.rb` gets loaded there's a `require 'digest'` at the...

> My perspective is that since most applications already depend on Capybara for driving their System Tests I'm not sure this is a true statement. I can see why it...

Thank you @amarchenkoshopify I'll take a look at this soon.

I opened https://github.com/rails/rails/pull/45916 which will reduce calls to `pool_configs` since we're no longer calling them in `complete` in the query cache. We can't simply memoize `all_connection_pools` or `pool_configs` without test...

I've spent some time looking at this and I'm not quite sure what the right fix is. Here's the gist of the problem The Comment record is already loaded in...

One thing that's special about system tests is they need to share the DB thread for the process, otherwise Puma will spin up one thread and Capybara will spin up...

Or I would check whether parallelization is a component in this as well. Does this occur with PARALLEL_WORKERS set to 1 or 0?