Carrierwave_backgrounder 和 delay_job 在 Heroku 上不起作用：没有这样的文件或目录答案

【问题标题】：Carrierwave_backgrounder and delayed_job not working on Heroku: No such file or directoryCarrierwave_backgrounder 和 delay_job 在 Heroku 上不起作用：没有这样的文件或目录
【发布时间】：2016-01-29 15:24:41
【问题描述】：

我正在使用 Carrierwave_backgrounder、delayed_job 和 daemons gem 来处理在我的应用程序上上传多个图像，而不会立即从其他用户那里窃取带宽。该工作人员将在我的本地开发服务器上正常运行。推送到我的 Heroku 暂存环境后，我在尝试完成作业时收到这些错误。

  Delayed::Backend::ActiveRecord::Job Load (2.5ms)  UPDATE "delayed_jobs" SET locked_at = '2015-10-28 23:46:15.299335', locked_by = 'host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3' WHERE id IN (SELECT  "delayed_jobs"."id" FROM "delayed_jobs" WHERE ((run_at <= '2015-10-28 23:46:15.298692' AND (locked_at IS NULL OR locked_at < '2015-10-28 19:46:15.298734') OR locked_by = 'host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3') AND failed_at IS NULL)  ORDER BY priority ASC, run_at ASC LIMIT 1 FOR UPDATE) RETURNING *
[Worker(host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3)] Job CarrierWave::Workers::StoreAsset (id=20) RUNNING
2015-10-28T23:46:15+0000: [Worker(host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3)] Job CarrierWave::Workers::StoreAsset (id=20) RUNNING
  VehicleImage Load (0.7ms)  SELECT  "vehicle_images".* FROM "vehicle_images" WHERE "vehicle_images"."id" = $1 LIMIT 1  [["id", 91]]
[Worker(host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3)] Job CarrierWave::Workers::StoreAsset (id=20) FAILED (4 prior attempts) with Errno::ENOENT: No such file or directory - /app/public/uploads/tmp/1446075582-3-5608/Cancer_show_031.JPG
2015-10-28T23:46:15+0000: [Worker(host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3)] Job CarrierWave::Workers::StoreAsset (id=20) FAILED (4 prior attempts) with Errno::ENOENT: No such file or directory - /app/public/uploads/tmp/1446075582-3-5608/Cancer_show_031.JPG
   (0.6ms)  BEGIN
  SQL (0.8ms)  UPDATE "delayed_jobs" SET "attempts" = $1, "run_at" = $2, "locked_at" = $3, "locked_by" = $4, "updated_at" = $5 WHERE "delayed_jobs"."id" = $6  [["attempts", 5], ["run_at", "2015-10-28 23:56:45.308678"], ["locked_at", nil], ["locked_by", nil], ["updated_at", "2015-10-28 23:46:15.310442"], ["id", 20]]
   (1.4ms)  COMMIT
  Delayed::Backend::ActiveRecord::Job Load (2.0ms)  UPDATE "delayed_jobs" SET locked_at = '2015-10-28 23:46:15.318187', locked_by = 'host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3' WHERE id IN (SELECT  "delayed_jobs"."id" FROM "delayed_jobs" WHERE ((run_at <= '2015-10-28 23:46:15.317874' AND (locked_at IS NULL OR locked_at < '2015-10-28 19:46:15.317891') OR locked_by = 'host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3') AND failed_at IS NULL)  ORDER BY priority ASC, run_at ASC LIMIT 1 FOR UPDATE) RETURNING *
[Worker(host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3)] Job CarrierWave::Workers::StoreAsset (id=21) RUNNING
2015-10-28T23:46:15+0000: [Worker(host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3)] Job CarrierWave::Workers::StoreAsset (id=21) RUNNING
  VehicleImage Load (0.7ms)  SELECT  "vehicle_images".* FROM "vehicle_images" WHERE "vehicle_images"."id" = $1 LIMIT 1  [["id", 92]]
[Worker(host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3)] Job CarrierWave::Workers::StoreAsset (id=21) FAILED (4 prior attempts) with Errno::ENOENT: No such file or directory - /app/public/uploads/tmp/1446075582-3-0693/Cancer_show_033.JPG
2015-10-28T23:46:15+0000: [Worker(host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3)] Job CarrierWave::Workers::StoreAsset (id=21) FAILED (4 prior attempts) with Errno::ENOENT: No such file or directory - /app/public/uploads/tmp/1446075582-3-0693/Cancer_show_033.JPG
   (0.6ms)  BEGIN
  SQL (1.2ms)  UPDATE "delayed_jobs" SET "attempts" = $1, "run_at" = $2, "locked_at" = $3, "locked_by" = $4, "updated_at" = $5 WHERE "delayed_jobs"."id" = $6  [["attempts", 5], ["run_at", "2015-10-28 23:56:45.322803"], ["locked_at", nil], ["locked_by", nil], ["updated_at", "2015-10-28 23:46:15.324371"], ["id", 21]]
   (1.5ms)  COMMIT
  Delayed::Backend::ActiveRecord::Job Load (2.2ms)  UPDATE "delayed_jobs" SET locked_at = '2015-10-28 23:46:15.329835', locked_by = 'host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3' WHERE id IN (SELECT  "delayed_jobs"."id" FROM "delayed_jobs" WHERE ((run_at <= '2015-10-28 23:46:15.329385' AND (locked_at IS NULL OR locked_at < '2015-10-28 19:46:15.329409') OR locked_by = 'host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3') AND failed_at IS NULL)  ORDER BY priority ASC, run_at ASC LIMIT 1 FOR UPDATE) RETURNING *
[Worker(host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3)] Job CarrierWave::Workers::StoreAsset (id=22) RUNNING
2015-10-28T23:46:15+0000: [Worker(host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3)] Job CarrierWave::Workers::StoreAsset (id=22) RUNNING
  VehicleImage Load (0.9ms)  SELECT  "vehicle_images".* FROM "vehicle_images" WHERE "vehicle_images"."id" = $1 LIMIT 1  [["id", 93]]
[Worker(host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3)] Job CarrierWave::Workers::StoreAsset (id=22) FAILED (4 prior attempts) with Errno::ENOENT: No such file or directory - /app/public/uploads/tmp/1446075582-3-8474/Cancer_show_034.JPG
2015-10-28T23:46:15+0000: [Worker(host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3)] Job CarrierWave::Workers::StoreAsset (id=22) FAILED (4 prior attempts) with Errno::ENOENT: No such file or directory - /app/public/uploads/tmp/1446075582-3-8474/Cancer_show_034.JPG
   (0.7ms)  BEGIN
  SQL (0.9ms)  UPDATE "delayed_jobs" SET "attempts" = $1, "run_at" = $2, "locked_at" = $3, "locked_by" = $4, "updated_at" = $5 WHERE "delayed_jobs"."id" = $6  [["attempts", 5], ["run_at", "2015-10-28 23:56:45.336065"], ["locked_at", nil], ["locked_by", nil], ["updated_at", "2015-10-28 23:46:15.338022"], ["id", 22]]
   (1.7ms)  COMMIT
  Delayed::Backend::ActiveRecord::Job Load (1.9ms)  UPDATE "delayed_jobs" SET locked_at = '2015-10-28 23:46:15.344057', locked_by = 'host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3' WHERE id IN (SELECT  "delayed_jobs"."id" FROM "delayed_jobs" WHERE ((run_at <= '2015-10-28 23:46:15.343691' AND (locked_at IS NULL OR locked_at < '2015-10-28 19:46:15.343713') OR locked_by = 'host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3') AND failed_at IS NULL)  ORDER BY priority ASC, run_at ASC LIMIT 1 FOR UPDATE) RETURNING *
[Worker(host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3)] 3 jobs processed at 62.5742 j/s, 3 failed
2015-10-28T23:46:15+0000: [Worker(host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3)] 3 jobs processed at 62.5742 j/s, 3 failed
  Delayed::Backend::ActiveRecord::Job Load (1.4ms)  UPDATE "delayed_jobs" SET locked_at = '2015-10-28 23:46:15.347046', locked_by = 'host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3' WHERE id IN (SELECT  "delayed_jobs"."id" FROM "delayed_jobs" WHERE ((run_at <= '2015-10-28 23:46:15.346718' AND (locked_at IS NULL OR locked_at < '2015-10-28 19:46:15.346737') OR locked_by = 'host:7db12935-5a60-41b4-892b-934f088b53d5 pid:3') AND failed_at IS NULL)  ORDER BY priority ASC, run_at ASC LIMIT 1 FOR UPDATE) RETURNING *

config/environments/production.rb

  config.action_mailer.perform_deliveries = true

uploaders/image_uploader.rb

class ImageUploader < CarrierWave::Uploader::Base
  include ::CarrierWave::Backgrounder::Delay

config/initializers/carrierwave_backgrounder.rb

CarrierWave::Backgrounder.configure do |c|
  c.backend :delayed_job, queue: :carrierwave
  # c.backend :resque, queue: :carrierwave
  # c.backend :sidekiq, queue: :carrierwave
  # c.backend :girl_friday, queue: :carrierwave
  # c.backend :sucker_punch, queue: :carrierwave
  # c.backend :qu, queue: :carrierwave
  # c.backend :qc
end

vehicle_image.rb

class VehicleImage < ActiveRecord::Base
  belongs_to :vehicle
  mount_uploader :image, ImageUploader
  process_in_background :image
  store_in_background :image

  def set_to_primary_and_save
    VehicleImage.where(vehicle: vehicle).update_all(primary: false)
    self.primary = true
    save
  end

end

感谢收看。

【问题讨论】：

似乎 heroku 只在资产管道中使用图像。您可能需要外部服务来上传图片，例如 s3。

标签： ruby-on-rails ruby ruby-on-rails-3 heroku delayed-job

【解决方案1】：

嗯，基本上你应该将图像上传到其他服务，例如 AWS S3。因为 Heroku 不允许我们上传图片。你可以在这里阅读更多内容https://stackoverflow.com/a/24646941/5126985

【讨论】：