Awesome
Simple scheduler for long-running and infrequent tasks.
- no threads, always in serial, to avoid out-of-memory issues and race-conditions
- forks for each execution to avoid leaking memory
- no dependencies
- supports crons with timezones via fugit
Install
gem install serial_scheduler
Usage
require 'serial_scheduler'
scheduler = SerialScheduler.new
scheduler.add :foo, interval: 10, timeout: 2 do
puts 'Doing foo'
end
scheduler.add :bar, interval: 5, timeout: 1 do
puts 'Doing bar'
end
require 'fugit'
scheduler.add :bar, cron: "* * * * * America/New_York", timeout: 1 do
puts 'Doing cron'
end
scheduler.run
Logging
SerialScheduler.new logger: my_logger
message: "Waiting to start job", job: :foo, in: 15, at: '2019-12-30 11:00:00'
Errors
Send to error service of your choice, or don't set it and it will raise and stop.
SerialScheduler.new error_handler: ->(e) { puts e }
Stopping
Will not start any new task, but finish the current one.
scheduler.stop
Author
Michael Grosser<br/>
michael@grosser.it<br/>
License: MIT<br/>