# File lib/new_relic/agent/error_collector.rb, line 23
      def initialize
        @error_trace_aggregator = ErrorTraceAggregator.new(MAX_ERROR_QUEUE_LENGTH)
        @error_event_aggregator = ErrorEventAggregator.new

        # lookup of exception class names to ignore.  Hash for fast access
        @ignore = {}

        initialize_ignored_errors(Agent.config['error_collector.ignore_errors''error_collector.ignore_errors'])

        Agent.config.register_callback('error_collector.ignore_errors''error_collector.ignore_errors') do |ignore_errors|
          initialize_ignored_errors(ignore_errors)
        end
      end