Skip Active Support Logger instrumentation for Rails 7.1

lib/new_relic/agent/instrumentation/active_support_logger.rb

@@ -9,7 +9,15 @@
 DependencyDetection.defer do
   named :active_support_logger
 
-  depends_on { defined?(ActiveSupport::Logger) }
+  depends_on do
+    defined?(ActiveSupport::Logger) &&
+      # TODO: Rails 7.1 - ActiveSupport::Logger#broadcast method removed
+      # APM logs-in-context automatic forwarding still works, but sends
+      # log events for each broadcasted logger, often causing duplicates
+      # Issue #2245
+      defined?(Rails::VERSION::STRING) &&
+      Gem::Version.new(Rails::VERSION::STRING) < Gem::Version.new('7.1.0')
+  end
 
   executes do
     NewRelic::Agent.logger.info('Installing ActiveSupport::Logger instrumentation')

test/multiverse/suites/rails/active_support_logger_test.rb

@@ -9,23 +9,31 @@ class ActiveSupportLoggerTest < Minitest::Test
     include MultiverseHelpers
     setup_and_teardown_agent
 
+    def rails_7_1?
+      Gem::Version.new(::Rails::VERSION::STRING) >= Gem::Version.new('7.1.0')
+    end
+
     def setup
       @output = StringIO.new
       @logger = Logger.new(@output)
       @broadcasted_output = StringIO.new
       @broadcasted_logger = ActiveSupport::Logger.new(@broadcasted_output)
-      @logger.extend(ActiveSupport::Logger.broadcast(@broadcasted_logger))
+      @logger.extend(ActiveSupport::Logger.broadcast(@broadcasted_logger)) unless rails_7_1?
 
       @aggregator = NewRelic::Agent.agent.log_event_aggregator
       @aggregator.reset!
     end
 
     def test_broadcasted_logger_marked_skip_instrumenting
-      assert @broadcasted_logger.instance_variable_get(:@skip_instrumenting)
-      assert_nil @logger.instance_variable_get(:@skip_instrumenting)
+      skip 'Rails 7.1. Active Support Logger instrumentation broken, see #2245' if rails_7_1?
+
+      assert @broadcasted_logger.instance_variable_get(:@skip_instrumenting), 'Broadcasted logger not set with @skip_instrumenting'
+      assert_nil @logger.instance_variable_get(:@skip_instrumenting), 'Logger has @skip_instrumenting defined'
     end
 
     def test_logs_not_forwarded_by_broadcasted_logger
+      skip 'Rails 7.1. Active Support Logger instrumentation broken, see #2245' if rails_7_1?
+
       message = 'Can you hear me, Major Tom?'
 
       @logger.add(Logger::DEBUG, message)