Golang miniprofiler.Timer類代碼示例

func timeTSDBRequest(e *State, T miniprofiler.Timer, req *opentsdb.Request) (s opentsdb.ResponseSet, err error) {
	e.tsdbQueries = append(e.tsdbQueries, *req)
	if e.autods > 0 {
		for _, q := range req.Queries {
			if q.Downsample == "" {
				if err := req.AutoDownsample(e.autods); err != nil {
					return nil, err
				}
			}
		}
	}
	b, _ := json.MarshalIndent(req, "", "  ")
	tries := 1
	for {
		T.StepCustomTiming("tsdb", "query", string(b), func() {
			getFn := func() (interface{}, error) {
				return e.tsdbContext.Query(req)
			}
			var val interface{}
			val, err = e.cache.Get(string(b), getFn)
			s = val.(opentsdb.ResponseSet).Copy()

		})
		if err == nil || tries == tsdbMaxTries {
			break
		}
		slog.Errorf("Error on tsdb query %d: %s", tries, err.Error())
		tries++
	}
	return
}

func (e *State) walkUnary(node *parse.UnaryNode, T miniprofiler.Timer) *Results {
	a := e.walk(node.Arg, T)
	T.Step("walkUnary: "+node.OpStr, func(T miniprofiler.Timer) {
		for _, r := range a.Results {
			if an, aok := r.Value.(Scalar); aok && math.IsNaN(float64(an)) {
				r.Value = Scalar(math.NaN())
				continue
			}
			switch rt := r.Value.(type) {
			case Scalar:
				r.Value = Scalar(uoperate(node.OpStr, float64(rt)))
			case Number:
				r.Value = Number(uoperate(node.OpStr, float64(rt)))
			case Series:
				s := make(Series)
				for k, v := range rt {
					s[k] = uoperate(node.OpStr, float64(v))
				}
				r.Value = s
			default:
				panic(ErrUnknownOp)
			}
		}
	})
	return a
}

// timeESRequest execute the elasticsearch query (which may set or hit cache) and returns
// the search results.
func timeESRequest(e *State, T miniprofiler.Timer, req *ElasticRequest) (resp *elastic.SearchResult, err error) {
	e.elasticQueries = append(e.elasticQueries, *req.Source)
	var source interface{}
	source, err = req.Source.Source()
	if err != nil {
		return resp, fmt.Errorf("failed to get source of request while timing elastic request: %s", err)
	}
	b, err := json.MarshalIndent(source, "", "  ")
	if err != nil {
		return resp, err
	}
	key, err := req.CacheKey()
	if err != nil {
		return nil, err
	}
	T.StepCustomTiming("elastic", "query", fmt.Sprintf("%v\n%s", req.Indices, b), func() {
		getFn := func() (interface{}, error) {
			return e.ElasticHosts.Query(req)
		}
		var val interface{}
		val, err = e.Cache.Get(key, getFn)
		resp = val.(*elastic.SearchResult)
	})
	return
}

func (e *State) walkFunc(node *parse.FuncNode, T miniprofiler.Timer) *Results {
	var res *Results
	T.Step("func: "+node.Name, func(T miniprofiler.Timer) {
		var in []reflect.Value
		for i, a := range node.Args {
			var v interface{}
			switch t := a.(type) {
			case *parse.StringNode:
				v = t.Text
			case *parse.NumberNode:
				v = t.Float64
			case *parse.FuncNode:
				v = extract(e.walkFunc(t, T))
			case *parse.UnaryNode:
				v = extract(e.walkUnary(t, T))
			case *parse.BinaryNode:
				v = extract(e.walkBinary(t, T))
			case *parse.ExprNode:
				v = e.walkExpr(t, T)
			default:
				panic(fmt.Errorf("expr: unknown func arg type"))
			}
			var argType models.FuncType
			if i >= len(node.F.Args) {
				if !node.F.VArgs {
					panic("expr: shouldn't be here, more args then expected and not variable argument type func")
				}
				argType = node.F.Args[node.F.VArgsPos]
			} else {
				argType = node.F.Args[i]
			}
			if f, ok := v.(float64); ok && argType == models.TypeNumberSet {
				v = fromScalar(f)
			}
			in = append(in, reflect.ValueOf(v))
		}
		f := reflect.ValueOf(node.F.F)
		fr := f.Call(append([]reflect.Value{reflect.ValueOf(e), reflect.ValueOf(T)}, in...))
		res = fr[0].Interface().(*Results)
		if len(fr) > 1 && !fr[1].IsNil() {
			err := fr[1].Interface().(error)
			if err != nil {
				panic(err)
			}
		}
		if node.Return() == models.TypeNumberSet {
			for _, r := range res.Results {
				e.AddComputation(r, node.String(), r.Value.(Number))
			}
		}
	})
	return res
}

func bandTSDB(e *State, T miniprofiler.Timer, query, duration, period string, num float64, rfunc func(*Results, *opentsdb.Response, time.Duration) error) (r *Results, err error) {
	r = new(Results)
	r.IgnoreOtherUnjoined = true
	r.IgnoreUnjoined = true
	T.Step("band", func(T miniprofiler.Timer) {
		var d, p opentsdb.Duration
		d, err = opentsdb.ParseDuration(duration)
		if err != nil {
			return
		}
		p, err = opentsdb.ParseDuration(period)
		if err != nil {
			return
		}
		if num < 1 || num > 100 {
			err = fmt.Errorf("num out of bounds")
		}
		var q *opentsdb.Query
		q, err = opentsdb.ParseQuery(query, e.tsdbContext.Version())
		if err != nil {
			return
		}
		if !e.tsdbContext.Version().FilterSupport() {
			if err = e.Search.Expand(q); err != nil {
				return
			}
		}
		req := opentsdb.Request{
			Queries: []*opentsdb.Query{q},
		}
		now := e.now
		req.End = now.Unix()
		req.Start = now.Add(time.Duration(-d)).Unix()
		if err = req.SetTime(e.now); err != nil {
			return
		}
		for i := 0; i < int(num); i++ {
			now = now.Add(time.Duration(-p))
			req.End = now.Unix()
			req.Start = now.Add(time.Duration(-d)).Unix()
			var s opentsdb.ResponseSet
			s, err = timeTSDBRequest(e, T, &req)
			if err != nil {
				return
			}
			for _, res := range s {
				if e.squelched(res.Tags) {
					continue
				}
				//offset := e.now.Sub(now.Add(time.Duration(p-d)))
				offset := e.now.Sub(now)
				if err = rfunc(r, res, offset); err != nil {
					return
				}
			}
		}
	})
	return
}

func (e *Expr) ExecuteState(s *State, T miniprofiler.Timer) (r *Results, queries []opentsdb.Request, err error) {
	defer errRecover(&err)
	if T == nil {
		T = new(miniprofiler.Profile)
	} else {
		s.enableComputations = true
	}
	T.Step("expr execute", func(T miniprofiler.Timer) {
		r = s.walk(e.Tree.Root, T)
	})
	queries = s.tsdbQueries
	return
}

// timeLSRequest execute the elasticsearch query (which may set or hit cache) and returns
// the search results.
func timeLSRequest(e *State, T miniprofiler.Timer, req *LogstashRequest) (resp *elastic.SearchResult, err error) {
	e.logstashQueries = append(e.logstashQueries, *req.Source)
	b, _ := json.MarshalIndent(req.Source.Source(), "", "  ")
	T.StepCustomTiming("logstash", "query", string(b), func() {
		getFn := func() (interface{}, error) {
			return e.LogstashHosts.Query(req)
		}
		var val interface{}
		val, err = e.Cache.Get(string(b), getFn)
		resp = val.(*elastic.SearchResult)
	})
	return
}

func Index(t miniprofiler.Timer, w http.ResponseWriter, r *http.Request) {
	db, _ := sql.Open("sqlite3", ":memory:")
	db.ExecTimer(t, "create table x(a, b, c)")
	db.ExecTimer(t, "insert into x (1, 2, 4), (3, 5, 6)")
	db.QueryTimer(t, "select * from x")
	t.Step("redissss", func(t miniprofiler.Timer) {
		conn, _ := redis.Dial("tcp", ":6379")
		defer conn.Close()
		conn.DoTimer(t, "set", "tes t", "value")
		conn.SendTimer(t, "get", "test t")
	})
	fmt.Fprintf(w, `<html><body>%v</body></html>`, t.Includes())
}

func timeGraphiteRequest(e *State, T miniprofiler.Timer, req *graphite.Request) (resp graphite.Response, err error) {
	e.graphiteQueries = append(e.graphiteQueries, *req)
	b, _ := json.MarshalIndent(req, "", "  ")
	T.StepCustomTiming("graphite", "query", string(b), func() {
		key := req.CacheKey()
		getFn := func() (interface{}, error) {
			return e.graphiteContext.Query(req)
		}
		var val interface{}
		val, err = e.cache.Get(key, getFn)
		resp = val.(graphite.Response)
	})
	return
}

func timeInfluxRequest(e *State, T miniprofiler.Timer, db, query, startDuration, endDuration, groupByInterval string) (s []influxModels.Row, err error) {
	q, err := influxQueryDuration(e.now, query, startDuration, endDuration, groupByInterval)
	if err != nil {
		return nil, err
	}
	conn, err := client.NewHTTPClient(e.InfluxConfig)
	if err != nil {
		return nil, err
	}
	T.StepCustomTiming("influx", "query", q, func() {
		getFn := func() (interface{}, error) {
			res, err := conn.Query(client.Query{
				Command:  q,
				Database: db,
			})
			if err != nil {
				return nil, err
			}
			if res.Error() != nil {
				return nil, res.Error()
			}
			if len(res.Results) != 1 {
				return nil, fmt.Errorf("influx: expected one result")
			}

			r := res.Results[0]
			if r.Err == "" {
				return r.Series, nil
			}
			err = fmt.Errorf(r.Err)
			return r.Series, err
		}
		var val interface{}
		var ok bool
		val, err = e.Cache.Get(q, getFn)
		if s, ok = val.([]influxModels.Row); !ok {
			err = fmt.Errorf("influx: did not get a valid result from InfluxDB")
		}
	})
	return
}

func Index(t miniprofiler.Timer, w http.ResponseWriter, r *http.Request) {
	if r.URL.Path == "/graph" {
		r.ParseForm()
		if _, present := r.Form["png"]; present {
			if _, err := Graph(t, w, r); err != nil {
				serveError(w, err)
			}
			return
		}
	}
	r.Header.Set(miniprofilerHeader, "true")
	// Set some global settings for the UI to know about. This saves us from
	// having to make an HTTP call to see what features should be enabled
	// in the UI
	openTSDBVersion := opentsdb.Version{0, 0}
	if schedule.SystemConf.GetTSDBContext() != nil {
		openTSDBVersion = schedule.SystemConf.GetTSDBContext().Version()
	}
	settings, err := json.Marshal(appSetings{
		schedule.SystemConf.SaveEnabled(),
		schedule.SystemConf.AnnotateEnabled(),
		schedule.GetQuiet(),
		openTSDBVersion,
	})
	if err != nil {
		serveError(w, err)
		return
	}
	err = indexTemplate().Execute(w, indexVariables{
		t.Includes(),
		string(settings),
	})
	if err != nil {
		serveError(w, err)
	}
}

// Graph takes an OpenTSDB request data structure and queries OpenTSDB. Use the
// json parameter to pass JSON. Use the b64 parameter to pass base64-encoded
// JSON.
func Graph(t miniprofiler.Timer, w http.ResponseWriter, r *http.Request) (interface{}, error) {
	j := []byte(r.FormValue("json"))
	if bs := r.FormValue("b64"); bs != "" {
		b, err := base64.StdEncoding.DecodeString(bs)
		if err != nil {
			return nil, err
		}
		j = b
	}
	if len(j) == 0 {
		return nil, fmt.Errorf("either json or b64 required")
	}
	oreq, err := opentsdb.RequestFromJSON(j)
	if err != nil {
		return nil, err
	}
	if ads_v := r.FormValue("autods"); ads_v != "" {
		ads_i, err := strconv.Atoi(ads_v)
		if err != nil {
			return nil, err
		}
		if err := oreq.AutoDownsample(ads_i); err != nil {
			return nil, err
		}
	}
	ar := make(map[int]bool)
	for _, v := range r.Form["autorate"] {
		if i, err := strconv.Atoi(v); err == nil {
			ar[i] = true
		}
	}
	queries := make([]string, len(oreq.Queries))
	var start, end string
	var startT, endT time.Time
	if s, ok := oreq.Start.(string); ok && strings.Contains(s, "-ago") {
		startT, err = opentsdb.ParseTime(s)
		if err != nil {
			return nil, err
		}
		start = strings.TrimSuffix(s, "-ago")
	}
	if s, ok := oreq.End.(string); ok && strings.Contains(s, "-ago") {
		endT, err = opentsdb.ParseTime(s)
		if err != nil {
			return nil, err
		}
		end = strings.TrimSuffix(s, "-ago")
	}
	if start == "" && end == "" {
		s, sok := oreq.Start.(int64)
		e, eok := oreq.End.(int64)
		if sok && eok {
			start = fmt.Sprintf("%vs", e-s)
			startT = time.Unix(s, 0)
			endT = time.Unix(e, 0)
			if err != nil {
				return nil, err
			}
		}
	}
	if endT.Equal(time.Time{}) {
		endT = time.Now().UTC()
	}
	m_units := make(map[string]string)
	for i, q := range oreq.Queries {
		if ar[i] {

			meta, err := schedule.MetadataMetrics(q.Metric)
			if err != nil {
				return nil, err
			}
			if meta == nil {
				return nil, fmt.Errorf("no metadata for %s: cannot use auto rate", q)
			}
			if meta.Unit != "" {
				m_units[q.Metric] = meta.Unit
			}
			if meta.Rate != "" {
				switch meta.Rate {
				case metadata.Gauge:
					// ignore
				case metadata.Rate:
					q.Rate = true
				case metadata.Counter:
					q.Rate = true
					q.RateOptions = opentsdb.RateOptions{
						Counter:    true,
						ResetValue: 1,
					}
				default:
					return nil, fmt.Errorf("unknown metadata rate: %s", meta.Rate)
				}
			}
		}
		queries[i] = fmt.Sprintf(`q("%v", "%v", "%v")`, q, start, end)
		if !schedule.SystemConf.GetTSDBContext().Version().FilterSupport() {
			if err := schedule.Search.Expand(q); err != nil {
//.........這裏部分代碼省略.........

func (s *Schedule) MarshalGroups(T miniprofiler.Timer, filter string) (*StateGroups, error) {
	var silenced SilenceTester
	T.Step("Silenced", func(miniprofiler.Timer) {
		silenced = s.Silenced()
	})
	var groups map[StateTuple]States
	var err error
	status := make(States)
	t := StateGroups{
		TimeAndDate: s.SystemConf.GetTimeAndDate(),
	}
	t.FailingAlerts, t.UnclosedErrors = s.getErrorCounts()
	T.Step("Setup", func(miniprofiler.Timer) {
		status2, err2 := s.GetOpenStates()
		if err2 != nil {
			err = err2
			return
		}
		var parsedExpr *boolq.Tree
		parsedExpr, err2 = boolq.Parse(filter)
		if err2 != nil {
			err = err2
			return
		}
		for k, v := range status2 {
			a := s.RuleConf.GetAlert(k.Name())
			if a == nil {
				slog.Errorf("unknown alert %s. Force closing.", k.Name())
				if err2 = s.ActionByAlertKey("bosun", "closing because alert doesn't exist.", models.ActionForceClose, k); err2 != nil {
					slog.Error(err2)
				}
				continue
			}
			is, err2 := MakeIncidentSummary(s.RuleConf, silenced, v)
			if err2 != nil {
				err = err2
				return
			}
			match := false
			match, err2 = boolq.AskParsedExpr(parsedExpr, is)
			if err2 != nil {
				err = err2
				return
			}
			if match {
				status[k] = v
			}
		}
	})
	if err != nil {
		return nil, err
	}
	T.Step("GroupStates", func(T miniprofiler.Timer) {
		groups = status.GroupStates(silenced)
	})
	T.Step("groups", func(T miniprofiler.Timer) {
		for tuple, states := range groups {
			var grouped []*StateGroup
			switch tuple.Status {
			case models.StWarning, models.StCritical, models.StUnknown:
				var sets map[string]models.AlertKeys
				T.Step(fmt.Sprintf("GroupSets (%d): %v", len(states), tuple), func(T miniprofiler.Timer) {
					sets = states.GroupSets(s.SystemConf.GetMinGroupSize())
				})
				for name, group := range sets {
					g := StateGroup{
						Active:        tuple.Active,
						Status:        tuple.Status,
						CurrentStatus: tuple.CurrentStatus,
						Silenced:      tuple.Silenced,
						Subject:       fmt.Sprintf("%s - %s", tuple.Status, name),
					}
					for _, ak := range group {
						st := status[ak]
						st.Body = ""
						st.EmailBody = nil
						st.Attachments = nil
						g.Children = append(g.Children, &StateGroup{
							Active:   tuple.Active,
							Status:   tuple.Status,
							Silenced: tuple.Silenced,
							AlertKey: ak,
							Alert:    ak.Name(),
							Subject:  string(st.Subject),
							Ago:      marshalTime(st.Last().Time),
							State:    st,
							IsError:  !s.AlertSuccessful(ak.Name()),
						})
					}
					if len(g.Children) == 1 && g.Children[0].Subject != "" {
						g.Subject = g.Children[0].Subject
					}
					grouped = append(grouped, &g)
				}
			default:
				continue
			}
			if tuple.NeedAck {
				t.Groups.NeedAck = append(t.Groups.NeedAck, grouped...)
			} else {
//.........這裏部分代碼省略.........

func (d DB) QueryRowTimer(t miniprofiler.Timer, query string, args ...interface{}) (row *sql.Row) {
	t.StepCustomTiming("sql", "query", query, func() {
		row = d.DB.QueryRow(query, args...)
	})
	return
}

func (d DB) ExecTimer(t miniprofiler.Timer, query string, args ...interface{}) (result sql.Result, err error) {
	t.StepCustomTiming("sql", "exec", query, func() {
		result, err = d.DB.Exec(query, args...)
	})
	return
}