Class: Judoscale::DelayedJob::MetricsCollector
- Inherits:
-
JobMetricsCollector
- Object
- JobMetricsCollector
- Judoscale::DelayedJob::MetricsCollector
- Includes:
- ActiveRecordHelper
- Defined in:
- lib/judoscale/delayed_job/metrics_collector.rb
Constant Summary collapse
- METRICS_SQL =
ActiveRecordHelper.cleanse_sql(<<~SQL) SELECT COALESCE(queue, 'default'), min(run_at) FROM delayed_jobs WHERE locked_at IS NULL AND failed_at IS NULL GROUP BY queue SQL
- BUSY_METRICS_SQL =
ActiveRecordHelper.cleanse_sql(<<~SQL) SELECT COALESCE(queue, 'default'), count(*) FROM delayed_jobs WHERE locked_at IS NOT NULL AND locked_by IS NOT NULL AND failed_at IS NULL GROUP BY 1 SQL
Class Method Summary collapse
Instance Method Summary collapse
Class Method Details
.adapter_config ⇒ Object
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# File 'lib/judoscale/delayed_job/metrics_collector.rb', line 29 def self.adapter_config Judoscale::Config.instance.delayed_job end |
.collect?(config) ⇒ Boolean
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# File 'lib/judoscale/delayed_job/metrics_collector.rb', line 33 def self.collect?(config) super && ActiveRecordHelper.table_exists?("delayed_jobs") end |
Instance Method Details
#collect ⇒ Object
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# File 'lib/judoscale/delayed_job/metrics_collector.rb', line 37 def collect metrics = [] t = Time.now.utc run_at_by_queue = select_rows_silently(METRICS_SQL).to_h self.queues |= run_at_by_queue.keys if track_busy_jobs? busy_count_by_queue = select_rows_silently(BUSY_METRICS_SQL).to_h self.queues |= busy_count_by_queue.keys end queues.each do |queue| run_at = run_at_by_queue[queue] # DateTime.parse assumes a UTC string run_at = DateTime.parse(run_at) if run_at.is_a?(String) latency_ms = run_at ? ((t - run_at) * 1000).ceil : 0 latency_ms = 0 if latency_ms < 0 metrics.push Metric.new(:qt, latency_ms, t, queue) if track_busy_jobs? busy_count = busy_count_by_queue[queue] || 0 metrics.push Metric.new(:busy, busy_count, Time.now, queue) end end log_collection(metrics) metrics end |