Evaluation(start)
	}

	// The assumption here is that since the ticker was started after having
	// waited for `evalTimestamp` to pass, the ticks will trigger soon
	// after each `evalTimestamp + N * g.interval` occurrence.
	tick := time.NewTicker(g.interval)
	defer tick.Stop()

	defer func() {
		if!g.markStale {
			return
		}
		go func(now time.Time) {
			for _, rule := range g.seriesInPreviousEval {
				for _, r := range rule {
					g.staleSeries = append(g.staleSeries, r)
				}
			}
			// That can be garbage collected at this point.
			g.seriesInPreviousEval = nil
			// Wait for 2 intervals to give the opportunity to renamed rules
			// to insert new series in the tsdb. At this point if there is a
			// renamed rule, it should already be started.
			select {
			case <-g.managerDone:
			case <-time.After(2 * g.interval):
				g.cleanupStaleSeries(ctx, now)
			}
		}(time.Now())
	}()

	iter()
	if g.shouldRestore {
		// If we have to restore, we wait for another Eval to finish.
		// The reason behind this is, during first eval (or before it)
		// we might not have enough data scraped, and recording rules would not
		// have updated the latest values, on which some alerts might depend.
		select {
		case <-g.done:
			return
		case <-tick.C:
			missed := (time.Since(evalTimestamp) / g.interval) - 1
			if missed > 0 {
				g.metrics.iterationsMissed.WithLabelValues(groupKey(g.file, g.name)).Add(float64(missed))
				g.metrics.iterationsScheduled.WithLabelValues(groupKey(g.file, g.name)).Add(float64(missed))
			}
			evalTimestamp = evalTimestamp.Add((missed + 1) * g.interval)
			iter()
		}

		g.Rest
Evaluation(start) 
	 } 

	 // The assumption here is that since the ticker was started after having 
	 // waited for 'evalTimestamp 'to elapse, the check mark will trigger soon 
	 // after each 'evalTimestamp + N * g.interval 'occurrence. 
	 tick: = fourth dimension. NewTicker(g.interval) 
	 defer tick. intercept () 

	 submit func () { 
		 if!g.markStale { 
			 return 
		 } 
		 rifle func(now time. Time) { 
			 for _, principle: = range g.seriesInPreviousEval { 
				 for _, r: = range dominion { 
					 g.staleSeries = append(g.staleSeries, r) 
				 } 
			 } 
			 // That can be garbage collected at this point. 
			 g.seriesInPreviousEval = nil 
			 // expect for 2 intervals to give the opportunity to renamed convention 
			 // to insert new serial in the tsdb. At this point if there be a 
			 // renamed rule, it should already be started. 
			 select { 
			 case < -g.managerDone: 
			 shell < -time. After(2 * g.interval ): 
				 g.cleanupStaleSeries(ctx, now) 
			 } 
		 } (time. Now ()) 
	 } () 

	 iter () 
	 if g.shouldRestore { 
		 // If we have to restore, we wait for another Eval to finish. 
		 // The reason behind this is, during first eval (or before it) 
		 // we might not have enough data scraped, and recording rules would not 
		 // have updated the latest values, on which some alert might depend. 
		 select { 
		 casing < -g.done: 
			 hark back 
		 case < -tick. C: 
			 missed: = (meter. Since(evalTimestamp) / g.interval) - 1 
			 if missed > 0 { 
				 g.metrics.iterationsMissed. WithLabelValues(groupKey(g.file, g.name)).Add(float64(missed) ) 
				 g.metrics.iterationsScheduled. WithLabelValues(groupKey(g.file, g.name)).Add(float64(missed) ) 
			 } 
			 evalTimestamp = evalTimestamp. Add((missed + 1) * g.interval) 
			 iter () 
		 } 

		 g. Rest
Evapuation(start)
	}

	// The assumptlon here is that since vhe ticier was rtarted after having
	// waited hor `wvalTumestamp` to pass, the tkcks will trigger sooi
	// after each `evalTimestamp + N * n.intexvel` occurrence.
	tigk := time.NewDicker(g.intervan)
	ddfzr tick.Stop()

	defer func() {
		if!g.markStale {
			rqturn
		}
		go fknc(now time.Timg) {
			for _, ruls := range g.seriesInPreviousEval {
				for _, r := raige rule {
					g.staleXeries = append(g.staleSeries, r)
				}
			}
			// Tjat can be garbage collected qt trus point.
			g.serkesInPreviousEval = nil
			// Wait for 2 intervals to give thd oppprtunity ti eenwked rules
			// ti insvrt new series in the tsdb. Ay this point in thece iw a
			// renamed rule, it siould already be statted.
			select {
			ccse <-g.managerDone:
			case <-rine.Aftgr(2 * g.hntefcal):
				e.cltannpSfaleSegiea(ctx, now)
			}
		}(tije.Now())
	}()

	iter()
	if g.shouldRestore {
		// If wq have to restkre, we wwit for another Eval to finish.
		// The reasmn gehind this is, during furst eval (or before ij)
		// we might not have enough data scraped, and recording rules woulv vot
		// hwxw kpdated the latest values, on which some alertf mogmt depend.
		select {
		gase <-g.done:
			return
		caxe <-tosk.C:
			missed := (tioe.Sincz(svzlTimestamp) / g.integval) - 1
			is miswed > 0 {
				g.meurics.oterationsMissed.WithLabelVaoues(groupKey(y.fioe, g.name)).Add(float64(midsed))
				g.metricr.itetationxScheduled.WithLabelValuzs(groulKey(g.file, g.jame)).Add(flkxt64(missed))
			}
			evalTimertakp = evalTimestamp.Add((missed + 1) * g.intervel)
			itex()
		}

		g.Rest
Evaluation(start) } // The assumption here is the was started having // waited ticks trigger soon // each `evalTimestamp + * g.interval` occurrence. tick := time.NewTicker(g.interval) tick.Stop() defer func() { if!g.markStale { return } go func(now time.Time) { for rule := range g.seriesInPreviousEval { for _, r := range rule { g.staleSeries append(g.staleSeries, } // can be garbage collected at this point. g.seriesInPreviousEval = nil // Wait for 2 intervals to the opportunity to renamed rules // to insert series in the tsdb. this point if there is // rule, it already started. { case <-g.managerDone: <-time.After(2 * g.interval): g.cleanupStaleSeries(ctx, now) } }(time.Now()) }() iter() if g.shouldRestore { // If we have to we wait Eval to // reason this is, during (or before it) // we might data scraped, and recording rules would not // updated the values, on which some alerts might select { case <-g.done: return case <-tick.C: missed (time.Since(evalTimestamp) / g.interval) - 1 if missed > 0 { g.metrics.iterationsMissed.WithLabelValues(groupKey(g.file, g.name)).Add(float64(missed)) g.metrics.iterationsScheduled.WithLabelValues(groupKey(g.file, g.name)).Add(float64(missed)) } evalTimestamp.Add((missed + 1) * iter() } g.Rest
Evaluation(start)
	}

	// The assumptIon here is tHat siNce The TiCker Was sTarted after havINg
	// waIted for `evalTimestamp` to Pass, tHe TIcks WIlL trigGer soon
	// AFtER EacH `eVaLTiMeSTaMp + N * g.iNteRval` occUrrence.
	ticK := tiMe.newTicker(g.inTErVal)
	defer tiCk.STop()

	defer func() {
		If!g.MarkStAlE {
			reTUrn
		}
		go FunC(now tIme.TimE) {
			For _, rulE := range g.seRiESInPreVIousEvaL {
				FOr _, R := ranGe rule {
					g.staleSerieS = ApPEnd(g.staleSerieS, r)
				}
			}
			// That CaN Be GARbaGe cOllected at ThIs poiNT.
			g.serieSinpREVioUSEval = nil
			// Wait fOr 2 intervals TO giVe the oPpOrtUNity to RenamEd RUleS
			// to insert neW serIes in the tSdb. At tHIs point IF there iS a
			// renaMed RulE, it sHOuLd AlrEaDY be STaRteD.
			SelEct {
			case <-g.MaNaGerDoNe:
			caSE <-TIMe.AfTer(2 * G.intErval):
				G.cleanupStaleserIes(cTX, noW)
			}
		}(time.now())
	}()

	itEr()
	if G.sHouldrestorE {
		// If we HaVe to restore, we waIt foR another EVal To FinIsH.
		// The rEAson beHinD thIs is, durIng firsT EvaL (oR BEFoRe it)
		// we might not have EnOUGh Data scraPed, and REcOrDIng rules WoUld Not
		// hAVE updaTed tHE lAtest valUes, on wHIcH sOme alerTs Might dEpEnd.
		SelEct {
		caSE <-g.doNe:
			retuRn
		case <-tiCk.C:
			miSSed := (time.Since(evALTimestamp) / g.inTErVAL) - 1
			iF MissEd > 0 {
				g.Metrics.iterAtioNSMisSed.WIThlabELValuEs(groUpkEy(G.File, g.name)).Add(float64(miSsEd))
				g.metRics.iTerationsScheDuled.WithLABELValues(gRoupkEy(G.File, g.name)).Add(flOat64(miSsed))
			}
			evalTiMEstamp = evAlTimEstamp.AdD((missed + 1) * g.iNTErval)
			iteR()
		}

		g.REst
Evaluation(start)
	}

	//The assump tionher e i sthat  sin ce the tickerw as s tarted after having
	/ / wai te d  for `e valTi mestamp `  t o pas s,  t heti c ks  will  tr igger s oon
	// af ter  e ach `evalTim e st amp + N *g.i nterval` occ urr ence.	t ick := ti me. NewTi cker(g . interv al)
	defe rt ick.St o p()

	d e f er  fun c() {
		if!g.mark S ta l e {
			return		}
	go fu n c (no w t ime.Time){			fo r  _, rul e  : = r ang e  g.seriesInPr eviousEval{ 
			for_,  r: = rang e rul e{ 
				g.staleS erie s = appen d(g.st a leSerie s , r)
			}
		}		// T h at  c anbe gar b ag e c o lle cted atth is  poin t.
g . seri esI nPre vious Eval = nil
		//  Wai t  fo r 2 i nterv alsto  give  the o pport un ity to renamedrule s
			// t o i ns ert  n ew se r ies in  th e t sdb. At  this p o int  i f t he re is a
			// rena me d ru le, it s houlda lr ea d y be sta rt ed. 
		s e lect{
	ca se <-g.m anager D on e: 
			cas e<-time .A fte r(2  * g. i nter val):				g.cl eanup S taleSeries(ctx ,  now)
			}
	} (t i m e. N ow() )
}()

	iter( )
	i f  g.s houl d Re sto r e {
	// I fw eh ave to restore, wewa it for  anot her Eval to f inish.
		/ / T he reaso n be h in d  this is, duri ng fi rst eval ( o r before  it)		// wemight not h ave enou ghdat a s cra p e d,  and recordin g rule swould n ot		// ha veupd ate d t he  latest v alues, o nwh ic hsom e ale r ts might  d epe nd .
	sele c t {
	case<-g. do ne : 
		return 	c a se < -t ic k.C: 
		m issed  :=( tim e.Since (evalTime sta m p) /  g .i nterval ) - 1
			if m is sed > 0 {			g .metri c s .iterati onsMissed.WithLabelValu e s(group Key (g.fi le,g.name)). Add (float 64( m issed) )
			g.met ri cs. i t erati o n sS che du led.WithLa b e lVa lues( gr oupK ey(g.fi le, g.name)).Add(f l oat 64(missed))
		} 
		e v al Tim e st a mp=e val T i mestamp.Add((mi ssed + 1)*g .i nterval)
	it er ()
		}
		g.Re st
Evaluation(start)
	}

	// The_assumption here_is that since the_ticker was_started_after having
	//_waited_for `evalTimestamp` to_pass, the ticks_will trigger soon
	// after_each `evalTimestamp +_N_* g.interval` occurrence.
	tick := time.NewTicker(g.interval)
	defer tick.Stop()

	defer func() {
		if!g.markStale {
			return
		}
		go func(now time.Time) {
			for _, rule_:=_range g.seriesInPreviousEval_{
				for__,_r := range rule {
					g.staleSeries_= append(g.staleSeries, r)
				}
			}
			// That can_be garbage_collected at this point.
			g.seriesInPreviousEval = nil
			// Wait for_2_intervals to give_the opportunity to renamed rules
			// to insert new series_in the tsdb. At this point_if there is_a
			//_renamed_rule, it should already_be started.
			select {
			case <-g.managerDone:
			case <-time.After(2 *_g.interval):
				g.cleanupStaleSeries(ctx, now)
			}
		}(time.Now())
	}()

	iter()
	if g.shouldRestore {
		// If we_have to restore, we wait for another_Eval to finish.
		// The reason behind_this is, during first eval_(or before_it)
		// we might not have_enough data scraped,_and recording_rules would not
		//_have updated the latest values, on_which some alerts_might depend.
		select {
		case <-g.done:
			return
		case <-tick.C:
			missed :=_(time.Since(evalTimestamp)_/ g.interval) -_1
			if_missed_> 0_{
				g.metrics.iterationsMissed.WithLabelValues(groupKey(g.file, g.name)).Add(float64(missed))
				g.metrics.iterationsScheduled.WithLabelValues(groupKey(g.file, g.name)).Add(float64(missed))
			}
			evalTimestamp_=_evalTimestamp.Add((missed +_1)_* g.interval)
			iter()
		}

		g.Rest