Class: Judoscale::SolidQueue::MetricsCollector

Inherits:
JobMetricsCollector
  • Object
show all
Includes:
ActiveRecordHelper
Defined in:
lib/judoscale/solid_queue/metrics_collector.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ MetricsCollector

Returns a new instance of MetricsCollector.



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# File 'lib/judoscale/solid_queue/metrics_collector.rb', line 20

def initialize
  super

  queue_names = run_silently do
    ::SolidQueue::Job.distinct.pluck(:queue_name)
  end
  self.queues |= queue_names
end

Class Method Details

.adapter_config ⇒ Object 



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# File 'lib/judoscale/solid_queue/metrics_collector.rb', line 12

def self.adapter_config
  Judoscale::Config.instance.solid_queue
end

.collect?(config) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/judoscale/solid_queue/metrics_collector.rb', line 16

def self.collect?(config)
  super && ActiveRecordHelper.table_exists_for_model?(::SolidQueue::Job)
end

Instance Method Details

#collect ⇒ Object 



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# File 'lib/judoscale/solid_queue/metrics_collector.rb', line 29

def collect
  metrics = []
  time = Time.now.utc

  oldest_execution_time_by_queue = run_silently do
    ::SolidQueue::ReadyExecution.group(:queue_name).minimum(:created_at)
  end
  self.queues |= oldest_execution_time_by_queue.keys

  if track_busy_jobs?
    busy_count_by_queue = run_silently do
      ::SolidQueue::Job.joins(:claimed_execution).group(:queue_name).count
    end
    self.queues |= busy_count_by_queue.keys
  end

  queues.each do |queue|
    run_at = oldest_execution_time_by_queue[queue]
    latency_ms = run_at ? ((time - run_at) * 1000).ceil : 0
    latency_ms = 0 if latency_ms < 0

    metrics.push Metric.new(:qt, latency_ms, time, queue)

    if track_busy_jobs?
      busy_count = busy_count_by_queue[queue] || 0
      metrics.push Metric.new(:busy, busy_count, time, queue)
    end
  end

  log_collection(metrics)
  metrics
end