1

app/services/subjects/course_used_info_service.rb

@@ -22,7 +22,7 @@ class Subjects::CourseUsedInfoService < ApplicationService
     # choice_shixun_frequency: 选用该课程实训的次数
     course_info = []
     schools.find_in_batches do |s|
-      Parallel.each(s) do |school|
+      s.each do |school|
         name = school.name
         course_count = school.course_count
         student_count = school.courses.joins(:course_members).where(course_members: {role: 4, course_id: course_ids}).size

lib/tasks/statistic_subject_info.rake

@@ -48,7 +48,7 @@ namespace :subjects do
     end
     subjects.find_in_batches(batch_size: 50) do |s|
       str = []
-      Parallel.each(s, in_threads: 4) do |subject|
+      Parallel.each(s, in_threads: 6) do |subject|
         puts("---------------------course_info_statistic: #{subject.id}")
         Rails.logger.info("---------------------course_info_statistic: #{subject.id}")
         data = Subjects::CourseUsedInfoService.call(subject)