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influx.go
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influx.go
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package main
import (
"encoding/json"
"fmt"
"math/rand"
"reflect"
"time"
"github.com/influxdata/influxdb/client/v2"
"github.com/researchlab/gbp/influxdb/basic/pkg/logic"
)
const (
// TimeLayout for influxdb time format
timeLayout string = "2006-01-02T15:04:05Z"
)
var metrics = []string{
"cluster_cpu_prediction",
"cluster_mem_prediction",
"cluster_storage_prediction",
}
func main() {
c, _ := logic.Conn()
// 01 查询已存在的指标 正常返回
//queryInstance(c, "cpu_used_percent")
// 02 写入
// 02 01 正常写入无tags 的指标 写入正常
// 02 01 正常写入有tags 的指标, 同时写入相同时间的另外一条指标
// 指标写入成功,但是被覆盖;
//writeInstance(c)
//queryInstance(c, "cpu_used_percent")
//queryInstance(c, "mem_memused_percent")
//queryInstance(c, "df_bytes_used_percent")
//queryInstance(c, metrics[0])
//queryInstance(c, metrics[1])
//queryInstance(c, metrics[2])
// 03 查询不存在的指标,不会报错
//queryInstance(c, "xtmp_cpu_usage")
//MultiWriteInstance(c)
t := time.Now().Unix()
querymock(c, t, "cpu_used_percent", metrics[0])
querymock(c, t, "mem_memused_percent", metrics[1])
querymock(c, t, "df_bytes_used_percent", metrics[2])
}
func MultiWriteInstance(c client.Client) {
fields := map[string]interface{}{
"idle": 201.2,
"system": 33.3,
"user": "ggg",
}
tags := map[string]string{"cpu": "ih-cpu"}
t := time.Now()
logic.Write(c, "opsultra", "tmp_cpu_info", tags, fields, t)
tt := time.Unix(t.Unix()+60, 0)
logic.Write(c, "opsultra", "tmp_cpu_info", tags, fields, tt)
ttt := time.Unix(tt.Unix()+60, 0)
logic.Write(c, "opsultra", "tmp_cpu_info", tags, fields, ttt)
}
func writeInstance(c client.Client) {
fields := map[string]interface{}{
"idle": 201.2,
"system": 33.3,
"user": "tmp",
}
fields1 := map[string]interface{}{
"idle": 101.1,
"system": 13.3,
"user": "tmp",
}
tags := map[string]string{"cpu": "ih-cpu"}
t := time.Now()
logic.Write(c, "opsultra", "tmp_cpu_info",nil, fields, time.Now())
// 因为t 相同 所以会被fields1 覆盖
logic.Write(c, "opsultra", "tmp_cpu_info", tags, fields, t)
logic.Write(c, "opsultra", "tmp_cpu_info", tags, fields1, t)
}
func queryInstance(c client.Client, metric string) {
//qs := fmt.Sprintf("SELECT * FROM %s LIMIT %d", metric, 5)
//qs := fmt.Sprintf("SELECT * FROM %s WHERE time > now() - 5m tz('Asia/Shanghai')", metric)
qs := fmt.Sprintf("SELECT value FROM %s order by time desc limit 1", metric)
//qs := fmt.Sprintf("SELECT * FROM %s WHERE time > now() - 5m", metric)
//qs := fmt.Sprintf("SELECT * FROM %s WHERE 'time > now() - 5m tz('Asia/Shanghai')' LIMIT %d", metric, 5)
res, err := logic.Query(c, "opsultra", qs)
if err != nil {
fmt.Println(err)
return
}
m := make(map[string]int)
for i, v := range res[0].Series[0].Columns {
m[v] = i
}
fmt.Println(m)
// protection condition
if res != nil && res[0].Series != nil {
for _, row := range res[0].Series[0].Values {
fmt.Println("row:", row)
//fmt.Println("row[2]:", row[2])
//fmt.Println("row[last]:", row[len(row)-1])
val, err := row[m["value"]].(json.Number).Float64()
if err != nil {
fmt.Println("vdata type:", reflect.TypeOf(row[m["value"]]), " err:", err)
}
fmt.Println("val:", val)
//vdata, ok := v[m["value"]].(string)
//if !ok {
// fmt.Println("vdata type:", reflect.TypeOf(v[m["value"]]))
// continue
//}
//val, _ := strconv.ParseFloat(vdata, 64)
//vlower, err := row[m["lower"]].(json.Number).Float64()
//if err !=nil {
// fmt.Println("vlower type:", reflect.TypeOf(row[m["lower"]]))
//}
////lower, _ := strconv.ParseFloat(vlower, 64)
////fmt.Println("vlower:", vlower, " lower:", lower)
//vupper, err := row[m["upper"]].(json.Number).Float64()
//if err !=nil {
// fmt.Println("vupper type:", reflect.TypeOf(row[m["upper"]]))
//}
////upper, _ := strconv.ParseFloat(vupper, 64)
////fmt.Println("vupper:", vupper, " upper:", upper)
//fmt.Println("vlower:",vlower, " vupper:",vupper)
// item
//for j, value := range row {
// fmt.Printf("j:%d value:%v\n", j,value)
//}
}
}
}
func querymock(c client.Client, t int64, metric1, metric string) {
qs := fmt.Sprintf("SELECT * FROM %s where endpoint='3c95f809-b9ac-4f32-8857-2e8a209632ae' order by time desc limit 1", metric1)
res, err := logic.Query(c, "opsultra", qs)
if err != nil {
fmt.Println(err)
return
}
// protection condition
if res != nil && res[0].Series != nil {
row := res[0].Series[0].Values[0]
fmt.Println("row[2]:", row[2])
fmt.Println("row[last]:", row[len(row)-1])
ff, _ := (row[len(row)-1]).(json.Number).Float64()
mocker(c, row[2].(string), t, ff, 10, metric)
}
}
func mocker(c client.Client, endpoint string, t int64, base float64, base1 float64, metric string) {
// mock
rr := func() float64 {
rand.Seed(time.Now().UnixNano())
return 10 + rand.Float64()*(50-10)
}
for i := 0; i < 12*30; i++ {
//for i := 0; i < 2; i++ {
bp, err := client.NewBatchPoints(client.BatchPointsConfig{
Database: "opsultra",
Precision: "m", // 精度, 默认ns
})
if err != nil {
fmt.Println("bp:", err)
return
}
for j := 0; j < 24*12; j++ {
t = t + 5*60
u := base + base1 + rr()
l := base - base1 - rr()
if l < 0 {
l = 0
}
v := (u + l) / 2
tags := map[string]string{
"endpoint": endpoint,
}
fields := map[string]interface{}{
"value": v,
"upper": u,
"lower": l,
}
tt := time.Unix(t, 0)
pt, err := client.NewPoint(metric, tags, fields, tt)
if err != nil {
fmt.Println("pt:", err)
return
}
bp.AddPoint(pt)
}
err = c.Write(bp)
if err != nil {
fmt.Println("c:", err)
return
}
}
}