コード例 #1
0
ファイル: runner.go プロジェクト: pandemicsyn/stalker
func (sr *Runner) flapIncr(flapID string) {
	rconn := sr.rpool.Get()
	defer rconn.Close()
	rconn.Send("MULTI")
	rconn.Send("INCR", flapID)
	rconn.Send("EXPIRE", flapID, sr.conf.flapWindow)
	_, err := rconn.Do("EXEC")
	stalker.OnlyLogIf(err)
}
コード例 #2
0
ファイル: manager.go プロジェクト: pandemicsyn/stalker
// randomly reshuffle all checks that need to be done right now and schedule
// them for a future time. i.e. if the stalker-manager was offline
// for an extended period of time.
// TODO: y u no actually shuffle!
// TODO: optomize Get & Update
func (sm *Manager) startupShuffle() {
	log.Debugln("Reshuffling checks")
	var err error
	rquery := r.Db(STALKERDB).Table("checks").Between(0, time.Now().Unix(), r.BetweenOpts{Index: "next", RightBound: "closed"})
	cursor, err := rquery.Run(sm.rsess)
	defer cursor.Close()
	if err != nil {
		log.Panic(err)
	}

	result := stalker.Check{}

	for cursor.Next(&result) {
		_, err := r.Db(STALKERDB).Table("checks").Get(result.ID).Update(map[string]int{"next": int(time.Now().Unix()) + stalker.RandIntInRange(1, sm.shuffleT)}).RunWrite(sm.rsess)
		stalker.OnlyLogIf(err)
	}

	stalker.OnlyLogIf(cursor.Err())
}
コード例 #3
0
ファイル: manager.go プロジェクト: pandemicsyn/stalker
// place a check on the queue
func (sm *Manager) enqueueCheck(check stalker.Check) {
	cb, err := json.Marshal(check)
	stalker.OnlyLogIf(err)
	rconn := sm.rpool.Get()
	defer rconn.Close()
	res, err := rconn.Do("RPUSH", "worker1", cb)
	log.Debugln("Checks now on queue:", res)
	if err != nil {
		log.Warningln("error pushing check on queue:", err)
	}
}
コード例 #4
0
ファイル: manager.go プロジェクト: pandemicsyn/stalker
// scan the checks db for checks that need to run
// mark them as pending and then drop'em on the q for the runner.
func (sm *Manager) scanChecks() {
	sm.pauseIfAsked()
	log.Debugln("Scanning for checks past due")
	qcount := 0
	rquery := r.Db(STALKERDB).Table("checks").Between(0, time.Now().Unix(), r.BetweenOpts{Index: "next", RightBound: "closed"})
	rquery = rquery.Filter(r.Row.Field("pending").Eq(false).And(r.Row.Field("suspended").Eq(false)))
	cursor, err := rquery.Run(sm.rsess)
	if err != nil {
		log.Errorln("Error scanning check db!")
		log.Errorln(err)
		return
	}
	defer cursor.Close()
	result := stalker.Check{}
	for cursor.Next(&result) {
		_, err := r.Db(STALKERDB).Table("checks").Get(result.ID).Update(map[string]bool{"pending": true}).RunWrite(sm.rsess)
		stalker.OnlyLogIf(err)
		sm.enqueueCheck(result)
		qcount++
	}
	stalker.OnlyLogIf(cursor.Err())
	log.Debugln("Queued:", qcount)
}
コード例 #5
0
ファイル: manager.go プロジェクト: pandemicsyn/stalker
// Sanitize scan the checks db for checks marked pending but not actually
// in progress. i.e. redis died, or services where kill -9'd.
func (sm *Manager) Sanitize(flushQueued bool) {
	if flushQueued {
		rconn := sm.rpool.Get()
		defer rconn.Close()
		_, err := rconn.Do("DEL", "worker1")
		stalker.OnlyLogIf(err)
	}
	log.Debugln("Sanatizing DB")
	rquery := r.Db(STALKERDB).Table("checks").Filter(r.Row.Field("pending").Eq(true))
	rquery = rquery.Update(map[string]bool{"pending": false})
	res, err := rquery.RunWrite(sm.rsess)
	if err != nil {
		log.Panic(err)
	}
	log.Debugln(res)
}