AR Trilogy Adapter: Handle AdapterTimeout and ConnectionFailed errs #497
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See #497
This PR ensures that
ActiveRecord::AdapterTimeout
errors are handled for the AR Trilogy Adapter. As of rails/rails@785f656, TimeoutErrors are translated to AdapterTimeout errors in Rails. As such, we no longer need special handling in#acquire_semian_resource
for such errors.This commit also ensures that ActiveRecord::ConnectionFailed errors are classified as resource exceptions. These are network-related exceptions and should be handled by Semian. I've added a corresponding test.
cc @casperisfine @etiennebarrie