我正在使用Paperclip和DelayedJob，在后台处理上传的样式。当我将图像发送到要处理的队列时，DelayedJob完成了作业，但它被发送到无限循环中，创建了更多完全相同的作业。
版本：
delayed_job_active_record版本4.0.2。
paperclip版本4.2.0。
以下是一些代码以及工作日志，以显示正在发生的事情......
has_attached_file :data,
url: '/updates/:id/:style/:basename.:extension',
styles: { large: '750x750>', medium: '300x300>', thumb: '50x50#' },
convert_options: { thumb: '-quality 75 -strip' }
validates_attachment_size :data, less_than: 20.megabytes
validates_attachment_content_type :data, content_type: /\Aimage\/.*\Z/
before_data_post_process do |update|
if !update.processing && update.data_changed?
update.processing = true
false # stop processing
end
end
after_save do |update|
if update.processing
update.delay.regenerate_styles!
end
end
def regenerate_styles!
data.reprocess!
update_attribute(:processing, false)
save
end
def data_changed?
data_file_size_changed? ||
data_file_name_changed? ||
data_content_type_changed? ||
data_updated_at_changed?
end
工作人员回复
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Starting job worker
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=52) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=52) COMPLETED after 2.5247
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=53) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=53) COMPLETED after 0.1654
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=54) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=54) COMPLETED after 0.0895
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=55) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=55) COMPLETED after 0.0993
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=56) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=56) COMPLETED after 0.0990
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=57) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=57) COMPLETED after 0.0947
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=58) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=58) COMPLETED after 0.0949
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=59) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=59) COMPLETED after 0.0855
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=60) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=60) COMPLETED after 0.1004
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=61) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=61) COMPLETED after 0.0941
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=62) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=62) COMPLETED after 0.0860
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=63) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=63) COMPLETED after 0.0980
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=64) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=64) COMPLETED after 0.0928
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=65) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=65) COMPLETED after 0.1053
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=66) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=66) COMPLETED after 0.7533
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=67) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=67) COMPLETED after 0.0950
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=68) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=68) COMPLETED after 0.0952
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=69) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=69) COMPLETED after 0.0867
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=70) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=70) COMPLETED after 0.0944
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=71) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=71) COMPLETED after 0.0913
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=72) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=72) COMPLETED after 0.0918
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=73) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=73) COMPLETED after 0.0982
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=74) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=74) COMPLETED after 0.0976
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=75) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=75) COMPLETED after 0.0925
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=76) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=76) COMPLETED after 0.0914
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=77) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=77) COMPLETED after 0.0970
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=78) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=78) COMPLETED after 0.0922
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=79) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=79) COMPLETED after 1.4655
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=80) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=80) COMPLETED after 0.0892
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=81) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=81) COMPLETED after 0.0839
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=82) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=82) COMPLETED after 0.0848
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=83) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=83) COMPLETED after 0.0965
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=84) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=84) COMPLETED after 0.0963
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=85) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=85) COMPLETED after 0.0917
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=86) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=86) COMPLETED after 0.0919
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=87) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=87) COMPLETED after 0.0909
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=88) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=88) COMPLETED after 0.1006
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=89) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=89) COMPLETED after 0.0936
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=90) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=90) COMPLETED after 0.2311
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=91) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=91) COMPLETED after 0.1069
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=92) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=92) COMPLETED after 0.6727
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=93) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=93) COMPLETED after 0.0904
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=94) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=94) COMPLETED after 0.0993
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=95) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=95) COMPLETED after 0.0903
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=96) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=96) COMPLETED after 0.0976
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=97) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=97) COMPLETED after 0.0916
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=98) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=98) COMPLETED after 0.1023
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=99) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=99) COMPLETED after 0.0991
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=100) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=100) COMPLETED after 0.0997
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=101) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=101) COMPLETED after 0.0953
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=102) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=102) COMPLETED after 0.0933
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=103) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=103) COMPLETED after 0.0918
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=104) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=104) COMPLETED after 0.6735
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=105) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=105) COMPLETED after 0.0884
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=106) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=106) COMPLETED after 0.0916
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=107) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=107) COMPLETED after 0.0859
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=108) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=108) COMPLETED after 0.0886
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=109) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=109) COMPLETED after 0.0871
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=110) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=110) COMPLETED after 0.0853
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=111) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=111) COMPLETED after 0.0991
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=112) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=112) COMPLETED after 0.0889
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=113) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=113) COMPLETED after 0.0969
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=114) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=114) COMPLETED after 0.0956
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=115) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=115) COMPLETED after 0.0993
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=116) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=116) COMPLETED after 0.0987
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=117) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=117) COMPLETED after 0.6886
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=118) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=118) COMPLETED after 0.0927
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=119) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=119) COMPLETED after 0.0962
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=120) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=120) COMPLETED after 0.0991
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=121) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=121) COMPLETED after 0.0924
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=122) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=122) COMPLETED after 0.0938
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=123) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=123) COMPLETED after 0.0965
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=124) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=124) COMPLETED after 0.0949
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=125) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=125) COMPLETED after 0.0933
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=126) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=126) COMPLETED after 0.0950
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=127) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=127) COMPLETED after 0.0877
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=128) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=128) COMPLETED after 0.0954
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=129) RUNNING
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=129) COMPLETED after 0.8408
[Worker(host:Justins-MacBook-Pro.local pid:98244)] Job Update#regenerate_styles! (id=130) RUNNING
DJ也可能需要10秒才能完成所有这些工作。有没有人遇到这个问题，或者任何人都可以发现我的配置错误？如果需要更多代码，请告诉我。提前谢谢。
答案 0 :(得分：0)
你调用data.reprocess！这可能会保存模型（在您将处理设置为false之前），然后使用after_save生成另一个作业。
您的数据更改方法还检查updated_at（如下所述），调用任何类型的保存（也是＆＃34;处理，false＆＃34;保存）将更新updated_at。 （导致再次打开处理）
在此处查看第二个答案：How to update a single attribute without touch updated_at attribute?
并使用update_column跳过updated_at列的更新。
因此：
def regenerate_styles!
update_column(:processing, false)
data.reprocess!
end