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FAQ

Q: Hello, tobi, I tried this plugin but I got 2 failing built-in specs. The “delayed_job / lib / delayed / job.rb” line 94 is “(`locked_at` IS NULL OR `locked_at` < #{quote_value(now + max_run_time)})”. Should it be “(… < #{quote_value(now – max_run_time)})”?

A: I got that same error. I think it’s a problem with postgres compatibility. I forked and fixed the problem, although I’m not sure if it’s the right way to do it.

Q: How to a configure the plugin to save failed jobs?

A: Here’s how I configured the plugin. I also wanted to change the number of max attempts, etc:

  # config/initializers/delayed_job_config.rb

  Delayed::Job.destroy_failed_jobs = false
  silence_warnings do
    Delayed::Job.const_set("MAX_ATTEMPTS", 3)
    Delayed::Job.const_set("MAX_RUN_TIME", 5.minutes)
  end

Q: I’m having trouble keeping the job running going when jobs fail. Isn’t there a way to store the error message and move on?

A: My errors are long, so I had to change the last_error column from string to text:

class ChangeLastErrorInDelayedJobsToText < ActiveRecord::Migration
  def self.up
    change_column :delayed_jobs, :last_error, :text
  end

  def self.down
    change_column :delayed_jobs, :last_error, :string
  end
end