You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: migrate_records_to_ghost_user_in_batches_service.rb
    path of file: ./repos/gitlabhq/app/services/users
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Users
  class MigrateRecordsToGhostUserInBatchesService
    LIMIT_SIZE = 1000

    def initialize
      @execution_tracker = Gitlab::Utils::ExecutionTr
    
    def execute
      ghost_user_migrations.each do |job|
        break if execution_tracker.over_limit?

        service = Users::MigrateRecordsToGhostUserService.new(
          job.user,
          job.initiator_user,
          execution_tracker
        )
        service.execute(hard_delete: job.hard_delete)
      rescue Gitlab::Utils::ExecutionTracker::ExecutionTimeOutError
        # no-op
      rescue StandardError => e
        ::Gitlab::ErrorTracking.track_exception(e)
        reschedule(job)
      end
    end