import * as Deque from 'double-ended-queue'; import Xev from 'xev'; import { deliverQueue, inboxQueue } from '../queue'; const ev = new Xev(); const interval = 1000; /** * Report queue stats regularly */ export default function() { const log = new Deque(); ev.on('requestQueueStatsLog', x => { ev.emit(`queueStatsLog:${x.id}`, log.toArray().slice(0, x.length || 50)); }); let activeDeliverJobs = 0; let activeInboxJobs = 0; deliverQueue.on('active', () => { activeDeliverJobs++; }); inboxQueue.on('active', () => { activeInboxJobs++; }); async function tick() { const deliverJobCounts = await deliverQueue.getJobCounts(); const inboxJobCounts = await inboxQueue.getJobCounts(); const stats = { deliver: { active: activeDeliverJobs, waiting: deliverJobCounts.waiting, delyaed: deliverJobCounts.delayed }, inbox: { active: activeInboxJobs, waiting: inboxJobCounts.waiting, delyaed: inboxJobCounts.delayed } }; ev.emit('queueStats', stats); log.unshift(stats); if (log.length > 200) log.pop(); activeDeliverJobs = 0; activeInboxJobs = 0; } tick(); setInterval(tick, interval); }