Class: Sidekiq::Scheduled::Poller

Inherits:
Object
  • Object
show all
Includes:
Util
Defined in:
lib/sidekiq/scheduled.rb

Overview

The Poller checks Redis every N seconds for jobs in the retry or scheduled set have passed their timestamp and should be enqueued. If so, it just pops the job back onto its original queue so the workers can pick it up like any other job.

Constant Summary collapse

INITIAL_WAIT =
10

Constants included from Util

Util::EXPIRY

Instance Method Summary collapse

Methods included from Util

#fire_event, #hostname, #identity, #logger, #process_nonce, #redis, #safe_thread, #tid, #watchdog

Methods included from ExceptionHandler

#handle_exception

Constructor Details

#initializePoller

Returns a new instance of Poller.


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# File 'lib/sidekiq/scheduled.rb', line 47

def initialize
  @enq = (Sidekiq.options[:scheduled_enq] || Sidekiq::Scheduled::Enq).new
  @sleeper = ConnectionPool::TimedStack.new
  @done = false
  @thread = nil
end

Instance Method Details

#enqueueObject


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# File 'lib/sidekiq/scheduled.rb', line 77

def enqueue
  @enq.enqueue_jobs
rescue => ex  # Most likely a problem with redis networking.
  # Punt and try again at the next interval

  logger.error ex.message
  handle_exception(ex)
end

#startObject


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# File 'lib/sidekiq/scheduled.rb', line 65

def start
  @thread ||= safe_thread("scheduler") {
    initial_wait

    until @done
      enqueue
      wait
    end
    Sidekiq.logger.info("Scheduler exiting...")
  }
end

#terminateObject

Shut down this instance, will pause until the thread is dead.


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# File 'lib/sidekiq/scheduled.rb', line 55

def terminate
  @done = true
  if @thread
    t = @thread
    @thread = nil
    @sleeper << 0
    t.value
  end
end