aross aross - 25 days ago 8
Ruby Question

delayed_job, jobs randomly disappears

We have a model who generate reports.

Each report can be very complicated and may take a long time to load. Therefore, we are using

delayed_job
to do this in background.

Everything works on my local computer but in our production environment jobs randomly disappear. They do not even exist in the
delayed_job.log
as success or failed. Delayed jobs are created but sometimes they are deleted without throwing any errors or doing the work.

This is the method in our model:

def generate_html
ac = DelayedJobsController.new()
tmp_html = ac.render_to_string partial: self.partial_path, object: self
self.update_attributes(html: tmp_html, done: true)
end
handle_asynchronously :generate_html

Answer Source

After lots of work we found the problem.

When we did run crontab -l and ps aux we cud see that two instances of delayed_job was running. After we killed the oldest one of them all worked like it should.