Fix ActiveRecord::ReadOnlyError with Active Record 8.1 - #13
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This uses a dedicated connection role for the low-privilege MySQL user instead of the reading role. The deadlock test needs to execute SELECT ... FOR UPDATE, which Active Record 8.1 rejects for connections configured as the reading role. Active Record 8.1 prevents pessimistic locking while using the reading role: rails/rails#54580
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This uses a dedicated connection role for the low-privilege MySQL user instead of the reading role. The deadlock test needs to execute
SELECT ... FOR UPDATE, which Active Record 8.1 rejects for connectionsconfigured as the reading role.
Active Record 8.1 prevents pessimistic locking while using the reading role: rails/rails#54580