Heroku调度程序调用作业，但未执行

分类：编程问答

如何解决Heroku调度程序调用作业，但未执行

我正在用Heroku托管我的应用程序，并且在scheduler.rake文件中有一个任务（由Heroku Scheduler调用）：

task :send_recipe_summary => :environment do
  puts "Calling send recipe summary slack message job..."
  SendRecipeSummarySlackMessageJob.perform_later
  puts "Done!"
end

（通过调度程序或在控制台中）调用此任务时，它表示该任务已排队：

➜  Plant-as-Usual-2 git:(master) heroku run bundle exec rake send_recipe_summary
Running bundle exec rake send_recipe_summary on ⬢ plant-as-usual-2... up,run.5548 (Hobby)
Calling send recipe summary slack message job...
I,[2020-09-24T16:25:50.193685 #4]  INFO -- : [ActiveJob] Enqueued SendRecipeSummarySlackMessageJob (Job ID: a4110651-a9fa-4030-96ef-db4caf64c7e5) to Async(default)
Done!

但是，在日志中，作业不会排队，并且Slack消息也永远不会发送：

2020-09-24T16:25:35.913315+00:00 app[api]: Starting process with command `bundle exec rake send_recipe_summary` by user jonappleseed@email.com
2020-09-24T16:25:44.008993+00:00 heroku[run.5548]: Awaiting client
2020-09-24T16:25:44.039520+00:00 heroku[run.5548]: State changed from starting to up
2020-09-24T16:25:44.291580+00:00 heroku[run.5548]: Starting process with command `bundle exec rake send_recipe_summary`
2020-09-24T16:25:49.334067+00:00 app[worker.1]: D,[2020-09-24T16:25:49.333949 #4] DEBUG -- :   [1m[36mDelayed::Backend::ActiveRecord::Job Load (1.5ms)[0m  [1m[37mUPDATE "delayed_jobs" SET locked_at = '2020-09-24 16:25:49.331558',locked_by = 'host:9b1fc7b1-4107-427f-8f49-f058b41b7906 pid:4' WHERE id IN (SELECT "delayed_jobs"."id" FROM "delayed_jobs" WHERE ((run_at <= '2020-09-24 16:25:49.330595' AND (locked_at IS NULL OR locked_at < '2020-09-24 12:25:49.330627') OR locked_by = 'host:9b1fc7b1-4107-427f-8f49-f058b41b7906 pid:4') AND failed_at IS NULL) ORDER BY priority ASC,run_at ASC LIMIT 1 FOR UPDATE) RETURNING *[0m
2020-09-24T16:25:53.372387+00:00 heroku[run.5548]: Process exited with status 0
2020-09-24T16:25:53.407641+00:00 heroku[run.5548]: State changed from up to complete
2020-09-24T16:26:49.394474+00:00 app[worker.1]: D,[2020-09-24T16:26:49.394376 #4] DEBUG -- :   [1m[36mDelayed::Backend::ActiveRecord::Job Load (1.5ms)[0m  [1m[37mUPDATE "delayed_jobs" SET locked_at = '2020-09-24 16:26:49.392377',locked_by = 'host:9b1fc7b1-4107-427f-8f49-f058b41b7906 pid:4' WHERE id IN (SELECT "delayed_jobs"."id" FROM "delayed_jobs" WHERE ((run_at <= '2020-09-24 16:26:49.391803' AND (locked_at IS NULL OR locked_at < '2020-09-24 12:26:49.391827') OR locked_by = 'host:9b1fc7b1-4107-427f-8f49-f058b41b7906 pid:4') AND failed_at IS NULL) ORDER BY priority ASC,run_at ASC LIMIT 1 FOR UPDATE) RETURNING *[0m

但是，如果我自己运行作业（而不是任务），那么一切都会按预期进行，并且消息确实会发送：

irb(main):002:0> SendRecipeSummarySlackMessageJob.perform_later
I,[2020-09-24T16:22:45.268729 #4]  INFO -- : [ActiveJob] Enqueued SendRecipeSummarySlackMessageJob (Job ID: 8285bb7f-9646-42bb-9901-8d219ca1175c) to Async(default)
=> #<SendRecipeSummarySlackMessageJob:0x000055b1a768dfb8 @arguments=[],@job_id="8285bb7f-9646-42bb-9901-8d219ca1175c",@queue_name="default",@priority=nil,@executions=0,@exception_executions={},@provider_job_id="c41cedd7-e5a5-4a7d-9e64-280d2ec81e1e">
irb(main):003:0> I,[2020-09-24T16:22:45.269348 #4]  INFO -- : [ActiveJob] [SendRecipeSummarySlackMessageJob] [8285bb7f-9646-42bb-9901-8d219ca1175c] Performing SendRecipeSummarySlackMessageJob (Job ID: 8285bb7f-9646-42bb-9901-8d219ca1175c) from Async(default) enqueued at 2020-09-24T16:22:45Z
D,[2020-09-24T16:22:46.412105 #4] DEBUG -- : [ActiveJob] [SendRecipeSummarySlackMessageJob] [8285bb7f-9646-42bb-9901-8d219ca1175c]    (1.5ms)  SELECT COUNT(*) FROM "recipes" WHERE "recipes"."state" = $1  [["state","awaiting_approval"]]
D,[2020-09-24T16:22:46.413683 #4] DEBUG -- : [ActiveJob] [SendRecipeSummarySlackMessageJob] [8285bb7f-9646-42bb-9901-8d219ca1175c]    (1.0ms)  SELECT COUNT(*) FROM "recipes" WHERE "recipes"."state" = $1  [["state","incomplete"]]
I,[2020-09-24T16:22:46.415123 #4]  INFO -- : [ActiveJob] [SendRecipeSummarySlackMessageJob] [8285bb7f-9646-42bb-9901-8d219ca1175c] Enqueued SendSlackMessageJob (Job ID: c640b706-9920-4639-a1a0-4c7dbec15c39) to Async(default) with arguments: "There are no recipes awaiting approval,and 1 incomplete recipe https://www.plantasusual.com/admin",{:nature=>"inform"}
I,[2020-09-24T16:22:46.415260 #4]  INFO -- : [ActiveJob] [SendRecipeSummarySlackMessageJob] [8285bb7f-9646-42bb-9901-8d219ca1175c] Performed SendRecipeSummarySlackMessageJob (Job ID: 8285bb7f-9646-42bb-9901-8d219ca1175c) from Async(default) in 1145.43ms
I,[2020-09-24T16:22:46.415882 #4]  INFO -- : [ActiveJob] [SendSlackMessageJob] [c640b706-9920-4639-a1a0-4c7dbec15c39] Performing SendSlackMessageJob (Job ID: c640b706-9920-4639-a1a0-4c7dbec15c39) from Async(default) enqueued at 2020-09-24T16:22:46Z with arguments: "There are no recipes awaiting approval,[2020-09-24T16:22:46.591446 #4]  INFO -- : [ActiveJob] [SendSlackMessageJob] [c640b706-9920-4639-a1a0-4c7dbec15c39] Performed SendSlackMessageJob (Job ID: c640b706-9920-4639-a1a0-4c7dbec15c39) from Async(default) in 175.12ms

有人可以帮助我理解为什么从控制台运行时作业能按预期运行，但是从调度程序运行时却无法正常工作吗？

感谢任何可以提供帮助的人！

解决方法

似乎您尚未在heroku bundle exec rake jobs:work上启用worker。 这是一项付费服务​​。转到：your_app>“资源”选项卡，然后从那里启用它。 this link could be helpful

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