limit maximum number of tasks in whenever gem rails

[wonderer007]

How can i limit maximum number of tasks in whenever. For example if i have something like this

every 1.hours do
runner "MyModel.some_process"
rake "my:rake:task"
command "/usr/bin/my_great_command"
end

I want to limit it to 1 means if there is a thread already running do not start new thread at next hour.

[benlangfeld]

The general idea in #598 is what you're looking for. This is something that cron itself doesn't support, and I believe to be outside the scope of Whenever. You might want to consider using cron or sidekiq-scheduler to schedule jobs on a queue with a single worker.