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Merge pull request #2539 from taosdata/feature/stress-tool 

Feature/stress tool
This commit is contained in:
Shengliang Guan 2020-07-03 11:47:22 +08:00 committed by GitHub
parent 13babe1cb9 96acc6c284
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tests/stress/.gitignore vendored Normal file
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stress
stress.exe
cases.json

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tests/stress/README.md Normal file
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# STRESS
Stress test tool for TDengine. It run a set of test cases randomly and show statistics.
## COMMAND LINE
``` bash
$ ./stress [-h=<localhost>] [-P=<0>] [-d=<test>] [-u=<root>] [-p=<taosdata>] [-c=<4>] [-f=<true>] [-l=<logPath>] [path_or_sql]
```
* **-h**: host name or IP address of TDengine server (default: localhost).
* **-P**: port number of TDengine server (default: 0).
* **-u**: user name (default: root).
* **-p**: password (default: taosdata).
* **-c**: concurrency, number of concurrent goroutines for query (default: 4).
* **-f**: fetch data or not (default: true).
* **-l**: log file path (default: no log).
* **path_or_sql**: a SQL statement or path of a JSON file which contains the test cases (default: cases.json).
## TEST CASE FILE
```json
[{
"weight": 1,
"sql": "select * from meters where ts>=now+%dm and ts<=now-%dm and c1=%v and c2=%d and c3='%s' and tbname='%s'",
"args": [{
"type": "range",
"min": 30,
"max": 60
}, {
"type": "bool"
}, {
"type": "int",
"min": -10,
"max": 20
}, {
"type": "string",
"min": 0,
"max": 10,
}, {
"type": "list",
"list": [
"table1",
"table2",
"table3",
"table4"
]
}]
}]
```
The test case file is a standard JSON file which contains an array of test cases. For test cases, field `sql` is mandatory, and it can optionally include a `weight` field and an `args` field which is an array of arguments.
`sql` is a SQL statement, it can include zero or more arguments (placeholders).
`weight` defines the possibility of the case being selected, the greater value the higher possibility. It must be an non-negative integer and the default value is zero, but, if all cases have a zero weight, all the weights are regarded as 1.
Placeholders of `sql` are replaced by arguments in `args` at runtime. There are 5 types of arguments currently:
* **bool**: generate a `boolean` value randomly.
* **int**: generate an `integer` between [`min`, `max`] randomly, the default value of `min` is 0 and `max` is 100.
* **range**: generate two `integer`s between [`min`, `max`] randomly, the first is less than the second, the default value of `min` is 0 and `max` is 100.
* **string**: generate a `string` with length between [`min`, `max`] randomly, the default value of `min` is 0 and `max` is 100.
* **list**: select an item from `list` randomly.
## OUTPUT
```
00:00:08 | TOTAL REQ | TOTAL TIME(us) | TOTAL AVG(us) | REQUEST | TIME(us) | AVERAGE(us) |
TOTAL | 3027 | 26183890 | 8650.11 | 287 | 3060935 | 10665.28 |
SUCCESS | 3027 | 26183890 | 8650.11 | 287 | 3060935 | 10665.28 |
FAIL | 0 | 0 | 0.00 | 0 | 0 | 0.00 |
```
* **Col 2**: total number of request since test start.
* **Col 3**: total time of all request since test start.
* **Col 4**: average time of all request since test start.
* **Col 5**: number of request in last second.
* **Col 6**: time of all request in last second.
* **Col 7**: average time of all request in last second.

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tests/stress/go.mod Normal file
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module github.com/taosdata/stress
go 1.14
require (
github.com/taosdata/driver-go v0.0.0-20200606095205-b786bac1857f
)

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tests/stress/main.go Normal file
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package main
import (
"database/sql"
"encoding/json"
"errors"
"flag"
"fmt"
"math/rand"
"os"
"os/signal"
"strings"
"sync"
"sync/atomic"
"time"
_ "github.com/taosdata/driver-go/taosSql"
)
type argument struct {
Type string `json:"type"`
Min int `json:"min"`
Max int `json:"max"`
List []interface{} `json:"list, omitempty"`
}
type testCase struct {
isQuery bool `json:"-"`
numArgs int `json:"-"`
Weight int `json:"weight"`
SQL string `json:"sql"`
Args []argument `json:"args"`
}
func (arg *argument) check() (int, error) {
if arg.Type == "list" {
if len(arg.List) == 0 {
return 0, errors.New("list cannot be empty")
}
return 1, nil
}
if arg.Max < arg.Min {
return 0, errors.New("invalid min/max value")
}
if arg.Type == "string" {
if arg.Min < 0 {
return 0, errors.New("negative string length")
}
}
if arg.Type == "int" && arg.Min == 0 && arg.Max == 0 {
arg.Max = arg.Min + 100
}
if arg.Type == "range" {
return 2, nil
}
return 1, nil
}
func (arg *argument) generate(args []interface{}) []interface{} {
const chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
switch arg.Type {
case "bool":
if rand.Intn(2) == 1 {
args = append(args, true)
} else {
args = append(args, false)
}
case "int":
v := rand.Intn(arg.Max-arg.Min+1) + arg.Min
args = append(args, v)
case "range":
v := rand.Intn(arg.Max-arg.Min) + arg.Min
args = append(args, v)
v = rand.Intn(arg.Max-v+1) + v
args = append(args, v)
case "string":
l := rand.Intn(arg.Max-arg.Min+1) + arg.Min
sb := strings.Builder{}
for i := 0; i < l; i++ {
sb.WriteByte(chars[rand.Intn(len(chars))])
}
args = append(args, sb.String())
case "list":
v := arg.List[rand.Intn(len(arg.List))]
args = append(args, v)
}
return args
}
func (tc *testCase) buildSql() string {
args := make([]interface{}, 0, tc.numArgs)
for i := 0; i < len(tc.Args); i++ {
args = tc.Args[i].generate(args)
}
return fmt.Sprintf(tc.SQL, args...)
}
type statitics struct {
succeeded int64
failed int64
succeededDuration int64
failedDuration int64
}
var (
host string
port uint
database string
user string
password string
fetch bool
chLog chan string
wgLog sync.WaitGroup
startAt time.Time
shouldStop int64
wgTest sync.WaitGroup
stat statitics
totalWeight int
cases []testCase
)
func loadTestCaseFromFile(file *os.File) error {
if e := json.NewDecoder(file).Decode(&cases); e != nil {
return e
}
if len(cases) == 0 {
return fmt.Errorf("no test case loaded.")
}
for i := 0; i < len(cases); i++ {
c := &cases[i]
c.SQL = strings.TrimSpace(c.SQL)
c.isQuery = strings.ToLower(c.SQL[:6]) == "select"
if c.Weight < 0 {
return fmt.Errorf("test %d: negative weight", i)
}
totalWeight += c.Weight
for j := 0; j < len(c.Args); j++ {
arg := &c.Args[j]
arg.Type = strings.ToLower(arg.Type)
n, e := arg.check()
if e != nil {
return fmt.Errorf("test case %d argument %d: %s", i, j, e.Error())
}
c.numArgs += n
}
}
if totalWeight == 0 {
for i := 0; i < len(cases); i++ {
cases[i].Weight = 1
}
totalWeight = len(cases)
}
return nil
}
func loadTestCase(pathOrSQL string) error {
if f, e := os.Open(pathOrSQL); e == nil {
defer f.Close()
return loadTestCaseFromFile(f)
}
pathOrSQL = strings.TrimSpace(pathOrSQL)
if strings.ToLower(pathOrSQL[:6]) != "select" {
return fmt.Errorf("'%s' is not a valid file or SQL statement", pathOrSQL)
}
cases = append(cases, testCase{
isQuery: true,
Weight: 1,
numArgs: 0,
SQL: pathOrSQL,
})
totalWeight = 1
return nil
}
func selectTestCase() *testCase {
sum, target := 0, rand.Intn(totalWeight)
var c *testCase
for i := 0; i < len(cases); i++ {
c = &cases[i]
sum += c.Weight
if sum > target {
break
}
}
return c
}
func runTest() {
defer wgTest.Done()
db, e := sql.Open("taosSql", fmt.Sprintf("%s:%s@tcp(%s:%v)/%s", user, password, host, port, database))
if e != nil {
fmt.Printf("failed to connect to database: %s\n", e.Error())
return
}
defer db.Close()
for atomic.LoadInt64(&shouldStop) == 0 {
c := selectTestCase()
str := c.buildSql()
start := time.Now()
if c.isQuery {
var rows *sql.Rows
if rows, e = db.Query(str); rows != nil {
if fetch {
for rows.Next() {
}
}
rows.Close()
}
} else {
_, e = db.Exec(str)
}
duration := time.Now().Sub(start).Microseconds()
if e != nil {
if chLog != nil {
chLog <- str + ": " + e.Error()
}
atomic.AddInt64(&stat.failed, 1)
atomic.AddInt64(&stat.failedDuration, duration)
} else {
atomic.AddInt64(&stat.succeeded, 1)
atomic.AddInt64(&stat.succeededDuration, duration)
}
}
}
func getStatPrinter() func(tm time.Time) {
var last statitics
lastPrintAt := startAt
return func(tm time.Time) {
var current statitics
current.succeeded = atomic.LoadInt64(&stat.succeeded)
current.failed = atomic.LoadInt64(&stat.failed)
current.succeededDuration = atomic.LoadInt64(&stat.succeededDuration)
current.failedDuration = atomic.LoadInt64(&stat.failedDuration)
seconds := int64(tm.Sub(startAt).Seconds())
format := "\033[47;30m %02v:%02v:%02v | TOTAL REQ | TOTAL TIME(us) | TOTAL AVG(us) | REQUEST | TIME(us) | AVERAGE(us) |\033[0m\n"
fmt.Printf(format, seconds/3600, seconds%3600/60, seconds%60)
tr := current.succeeded + current.failed
td := current.succeededDuration + current.failedDuration
r := tr - last.succeeded - last.failed
d := td - last.succeededDuration - last.failedDuration
ta, a := 0.0, 0.0
if tr > 0 {
ta = float64(td) / float64(tr)
}
if r > 0 {
a = float64(d) / float64(r)
}
format = " TOTAL | %9v | %14v | %13.2f | %7v | %10v | % 13.2f |\n"
fmt.Printf(format, tr, td, ta, r, d, a)
tr = current.succeeded
td = current.succeededDuration
r = tr - last.succeeded
d = td - last.succeededDuration
ta, a = 0.0, 0.0
if tr > 0 {
ta = float64(td) / float64(tr)
}
if r > 0 {
a = float64(d) / float64(r)
}
format = " SUCCESS | \033[32m%9v\033[0m | \033[32m%14v\033[0m | \033[32m%13.2f\033[0m | \033[32m%7v\033[0m | \033[32m%10v\033[0m | \033[32m%13.2f\033[0m |\n"
fmt.Printf(format, tr, td, ta, r, d, a)
tr = current.failed
td = current.failedDuration
r = tr - last.failed
d = td - last.failedDuration
ta, a = 0.0, 0.0
if tr > 0 {
ta = float64(td) / float64(tr)
}
if r > 0 {
a = float64(d) / float64(r)
}
format = " FAIL | \033[31m%9v\033[0m | \033[31m%14v\033[0m | \033[31m%13.2f\033[0m | \033[31m%7v\033[0m | \033[31m%10v\033[0m | \033[31m%13.2f\033[0m |\n"
fmt.Printf(format, tr, td, ta, r, d, a)
last = current
lastPrintAt = tm
}
}
func startLogger(path string) error {
if len(path) == 0 {
return nil
}
f, e := os.Create(path)
if e != nil {
return e
}
chLog = make(chan string, 100)
wgLog.Add(1)
go func() {
for s := range chLog {
if f != nil {
f.WriteString(s)
f.WriteString("\n")
}
}
f.Close()
wgLog.Done()
}()
return nil
}
func main() {
var concurrency uint
var logPath string
flag.StringVar(&host, "h", "localhost", "host name or IP address of TDengine server")
flag.UintVar(&port, "P", 0, "port (default 0)")
flag.StringVar(&database, "d", "test", "database name")
flag.StringVar(&user, "u", "root", "user name")
flag.StringVar(&password, "p", "taosdata", "password")
flag.BoolVar(&fetch, "f", true, "fetch result or not")
flag.UintVar(&concurrency, "c", 4, "concurrency, number of goroutines for query")
flag.StringVar(&logPath, "l", "", "path of log file (default: no log)")
flag.Parse()
if e := startLogger(logPath); e != nil {
fmt.Println("failed to open log file:", e.Error())
return
}
pathOrSQL := flag.Arg(0)
if len(pathOrSQL) == 0 {
pathOrSQL = "cases.json"
}
if e := loadTestCase(pathOrSQL); e != nil {
fmt.Println("failed to load test cases:", e.Error())
return
}
rand.Seed(time.Now().UnixNano())
fmt.Printf("\nSERVER: %s DATABASE: %s CONCURRENCY: %d FETCH DATA: %v\n\n", host, database, concurrency, fetch)
startAt = time.Now()
printStat := getStatPrinter()
printStat(startAt)
for i := uint(0); i < concurrency; i++ {
wgTest.Add(1)
go runTest()
}
interrupt := make(chan os.Signal, 1)
signal.Notify(interrupt, os.Interrupt)
ticker := time.NewTicker(time.Second)
fmt.Println("Ctrl + C to exit....\033[1A")
LOOP:
for {
select {
case <-interrupt:
break LOOP
case tm := <-ticker.C:
fmt.Print("\033[4A")
printStat(tm)
}
}
atomic.StoreInt64(&shouldStop, 1)
fmt.Print("\033[100D'Ctrl + C' received, Waiting started query to stop...")
wgTest.Wait()
if chLog != nil {
close(chLog)
wgLog.Wait()
}
fmt.Print("\033[4A\033[100D")
printStat(time.Now())
fmt.Println()
}