Update calling-methods-with-delay.rst

[MisterHux]

The second paragraph is a little hard to read. I think you mean to talk about changing the polling interval of the server. If I am incorrect in my assumption, please ignore this request

[odinserj]

Not quite. Delayed jobs are being placed into a special sorted set unrelated to message queues. Special Hangfire Server component checks that sorted set periodically (15 seconds by default) to fetch background jobs ready to run. When such a background found, the component puts it to a message queue and removes from the sorted set.

So queues (i.e. message queues) are unrelated to the second paragraph.

[MisterHux]

Ah, I haven't actually used Hangfire yet. So I haven't delved into the source very much.

Then does this make more sense:

Delayed jobs are placed in a separate set than message jobs. The :doc:Hangfire Server <../background-processing/processing-background-jobs> periodically checks this set to see if their are any jobs to be placed onto a message queue. If their are, the Server removes the job from the set and sends it to the appropriate queue. The default interval for this periodic check is 15 seconds, but you can change it. To do this pass the corresponding option to the BackgroundJobServer ctor.

.. code-block:: c#

var options = new BackgroundJobServerOptions
{
SchedulePollingInterval = TimeSpan.FromMinutes(1)
};

I've also updated the file.

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