/usr/share/gocode/src/github.com/influxdata/influxdb/stress/v2/statement/report.go is in golang-github-influxdb-influxdb-dev 1.1.1+dfsg1-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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import (
"encoding/json"
"fmt"
"log"
"math"
"sort"
"time"
influx "github.com/influxdata/influxdb/client/v2"
)
// TODO: Refactor this file to utilize a common interface
// This will make adding new reports easier in the future
// Runs performance numbers for insert statements
type insertReport struct {
name string
numRetries int
pointsPerSecond int
successfulWrites int
avgRequestBytes int
avgResponseTime time.Duration
stdDevResponseTime time.Duration
percentile time.Duration
columns []string
values [][]interface{}
}
// Returns the version of the report that is output to STDOUT
func (ir *insertReport) String() string {
tmplString := `Write Statement: %v
Points/Sec: %v
Resp Time Average: %v
Resp Time Standard Deviation: %v
95th Percentile Write Response: %v
Average Request Bytes: %v
Successful Write Reqs: %v
Retries: %v`
return fmt.Sprintf(tmplString,
ir.name,
ir.pointsPerSecond,
ir.avgResponseTime,
ir.stdDevResponseTime,
ir.percentile,
ir.avgRequestBytes,
ir.successfulWrites,
ir.numRetries)
}
// Returns a point representation of the report to be written to the ResultsDB
func (ir *insertReport) Point() *influx.Point {
measurement := "testDefault"
tags := map[string]string{}
fields := map[string]interface{}{"field": "blank"}
point, err := influx.NewPoint(measurement, tags, fields, time.Now())
if err != nil {
log.Fatalf("Error creating insertReport point\n measurement: %v\n tags: %v\n fields: %v\n error: %v\n", measurement, tags, fields, err)
}
return point
}
// Runs performance numbers for query statements
type queryReport struct {
name string
successfulReads int
responseBytes int
stddevResponseBytes int
avgResponseTime time.Duration
stdDevResponseTime time.Duration
percentile time.Duration
columns []string
values [][]interface{}
}
// Returns the version of the report that is output to STDOUT
func (qr *queryReport) String() string {
tmplString := `Query Statement: %v
Resp Time Average: %v
Resp Time Standard Deviation: %v
95th Percentile Read Response: %v
Query Resp Bytes Average: %v bytes
Successful Queries: %v`
return fmt.Sprintf(tmplString,
qr.name,
qr.avgResponseTime,
qr.stdDevResponseTime,
qr.percentile,
qr.responseBytes,
qr.successfulReads)
}
// Returns a point representation of the report to be written to the ResultsDB
func (qr *queryReport) Point() *influx.Point {
measurement := "testDefault"
tags := map[string]string{}
fields := map[string]interface{}{"field": "blank"}
point, err := influx.NewPoint(measurement, tags, fields, time.Now())
if err != nil {
log.Fatalf("Error creating queryReport point\n measurement: %v\n tags: %v\n fields: %v\n error: %v\n", measurement, tags, fields, err)
}
return point
}
// Runs performance numbers for InfluxQL statements
type influxQlReport struct {
statement string
responseTime time.Duration
success bool
columns []string
values [][]interface{}
}
// Returns the version of the report that is output to STDOUT
func (iqlr *influxQlReport) String() string {
// Fancy format success
var success string
switch iqlr.success {
case true:
success = "[√]"
case false:
success = "[X]"
}
return fmt.Sprintf("%v '%v' -> %v", success, iqlr.statement, iqlr.responseTime)
}
// Returns a point representation of the report to be written to the ResultsDB
func (iqlr *influxQlReport) Point() *influx.Point {
measurement := "testDefault"
tags := map[string]string{}
fields := map[string]interface{}{"field": "blank"}
point, err := influx.NewPoint(measurement, tags, fields, time.Now())
if err != nil {
log.Fatalf("Error creating influxQL point\n measurement: %v\n tags: %v\n fields: %v\n error: %v\n", measurement, tags, fields, err)
}
return point
}
// Given a field or tag name this function returns the index where the values are found
func getColumnIndex(col string, columns []string) int {
index := -1
for i, column := range columns {
if column == col {
index = i
}
}
return index
}
// Given a full set of results pulls the average num_bytes
func numberBytes(columns []string, values [][]interface{}) int {
out := 0
index := getColumnIndex("num_bytes", columns)
for _, val := range values {
reqBytes, err := val[index].(json.Number).Int64()
if err != nil {
log.Fatalf("Error coercing json.Number to Int64\n json.Number:%v\n error: %v\n", val[index], err)
}
out += int(reqBytes)
}
return out / len(values)
}
// Counts the number of 200(query) or 204(write) responses and returns them
func countSuccesses(columns []string, values [][]interface{}) (out int) {
index := getColumnIndex("status_code", columns)
for _, val := range values {
status, err := val[index].(json.Number).Int64()
if err != nil {
log.Fatalf("Error coercing json.Number to Int64\n json.Number:%v\n error: %v\n", val[index], err)
}
if status == 204 || status == 200 {
out++
}
}
return out
}
// Counts number of 500 status codes
func countRetries(columns []string, values [][]interface{}) (out int) {
index := getColumnIndex("status_code", columns)
for _, val := range values {
status, err := val[index].(json.Number).Int64()
if err != nil {
log.Fatalf("Error coercing json.Number to Int64\n json.Number:%v\n error: %v\n", val[index], err)
}
if status == 500 {
out++
}
}
return out
}
// Pulls out the response_time_ns values and formats them into ResponseTimes for reporting
func responseTimes(columns []string, values [][]interface{}) (rs ResponseTimes) {
rs = make([]ResponseTime, 0)
index := getColumnIndex("response_time_ns", columns)
for _, val := range values {
respTime, err := val[index].(json.Number).Int64()
if err != nil {
log.Fatalf("Error coercing json.Number to Int64\n json.Number:%v\n error: %v\n", val[index], err)
}
rs = append(rs, NewResponseTime(int(respTime)))
}
return rs
}
// Returns the 95th perecntile response time
func percentile(rs ResponseTimes) time.Duration {
sort.Sort(rs)
return time.Duration(rs[(len(rs) * 19 / 20)].Value)
}
// Returns the average response time
func avgDuration(rs ResponseTimes) (out time.Duration) {
for _, t := range rs {
out += time.Duration(t.Value)
}
return out / time.Duration(len(rs))
}
// Returns the standard deviation of a sample of response times
func stddevDuration(rs ResponseTimes) (out time.Duration) {
avg := avgDuration(rs)
for _, t := range rs {
out += (avg - time.Duration(t.Value)) * (avg - time.Duration(t.Value))
}
return time.Duration(int64(math.Sqrt(float64(out) / float64(len(rs)))))
}
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