Merge pull request #18080 from korbin/fix_reaping_frequency_configuration

Fix issue with reaping_frequency type.

activerecord/CHANGELOG.md

+*   Fix `reaping_frequency` option when the value is a string.
+
+    This usually happens when it is configured using `DATABASE_URL`.
+
+    *korbin*
+
 *   Fix error message when trying to create an associated record and the foreign
     key is missing.
 

activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb

@@ -236,7 +236,7 @@ def initialize(spec)
         @spec = spec
 
         @checkout_timeout = (spec.config[:checkout_timeout] && spec.config[:checkout_timeout].to_f) || 5
-        @reaper  = Reaper.new self, spec.config[:reaping_frequency]
+        @reaper = Reaper.new(self, (spec.config[:reaping_frequency] && spec.config[:reaping_frequency].to_f))
         @reaper.run
 
         # default max pool size to 5

activerecord/test/cases/reaper_test.rb

@@ -60,7 +60,7 @@ def test_reaping_frequency_configuration
 
       def test_connection_pool_starts_reaper
         spec = ActiveRecord::Base.connection_pool.spec.dup
-        spec.config[:reaping_frequency] = 0.0001
+        spec.config[:reaping_frequency] = '0.0001'
 
         pool = ConnectionPool.new spec