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slow_log_summary.go
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// Author: Chen Chen
// Created: 2023-10-24
// Tool Description: Generate a summary report of MySQL slow queries.
package main
import (
"bytes"
"context"
"flag"
"fmt"
_ "github.com/go-sql-driver/mysql"
"github.com/jmoiron/sqlx"
"golang.org/x/crypto/ssh/terminal"
"html/template"
"io/ioutil"
"log"
"math"
"os"
"os/exec"
"regexp"
"strconv"
"strings"
"time"
)
// 定义HTML模板用于生成HTML报告
const temp = `
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Slow Log</title>
<style>
body {
font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
font-size: 14px;
line-height: 1.5;
color: #333;
background-color: #f5f5f5;
}
h2 {
font-weight: bold;
font-size: 28px;
margin: 20px auto;
text-align: center;
}
table {
font-size: 14px;
width: 120%;
max-width: 150%;
margin-bottom: 20px;
border-collapse: collapse;
border-spacing: 0;
background-color: transparent;
}
th,
td {
padding: 8px;
vertical-align: top;
border-top: 1px solid #ddd;
}
th {
font-weight: bold;
text-align: left;
background-color: #f9f9f9;
border-bottom: 2px solid #ddd;
color: #0074a3;
background-color:#e5eefd;
white-space: nowrap;
}
td:hover {
background-color: #ddd;
}
.table-bordered {
border: 1px solid #ddd;
border-collapse: separate;
border-left: 0;
border-radius: 4px;
overflow: hidden;
}
.table-bordered th,
.table-bordered td {
border-left: 1px solid #ddd;
}
.table-bordered > thead > tr > th,
.table-bordered > tbody > tr > th,
.table-bordered > tfoot > tr > th,
.table-bordered > thead > tr > td,
.table-bordered > tbody > tr > td,
.table-bordered > tfoot > tr > td {
border: 1px solid #ddd;
}
.table-hover > tbody > tr:hover {
background-color: #f5f5f5;
}
.table-striped > tbody > tr:nth-of-type(odd) {
background-color: #f9f9f9;
}
.table-hover .table-striped > tbody > tr:hover {
background-color: #e8e8e8;
}
.text-center {
text-align: center;
}
.text-right {
text-align: right;
}
.text-left {
text-align: left;
}
.bold {
font-weight: bold;
}
.float-right {
float: right;
}
.generated-time {
font-size: 12px;
font-weight: bold;
float: right;
margin-top: 5px;
}
</style>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-md-12">
<h2>Slow Log Summary</h2>
{{if eq .slowLogSource "performance_schema"}}
<span class="generated-time">慢日志来源：performance_schema 实例地址：{{.instanceAddr}} 实例版本：{{.mysqlVersion}} 生成时间：{{.now}}</span>
{{else}}
<span class="generated-time">慢日志来源：{{.slowLogSource}} 分析时间范围：{{.timeRangeStart}} ~ {{.timeRangeEnd}} 生成时间：{{.now}}</span>
{{end}}
<div class="table-responsive">
<table class="table table-bordered table-hover table-striped">
<thead>
<tr>
{{if eq .slowLogSource "performance_schema"}}
<th class="text-center">排名</th>
<th class="text-center">总耗时</th>
<th class="text-center">总执行次数</th>
<th class="text-center">平均耗时</th>
<th class="text-center">平均扫描行数</th>
<th class="text-center">平均发送行数</th>
{{with index .slowLogSummary 0}}
{{if .CpuTimeAvg}}
<th class="text-center">CPU平均耗时</th>
{{end}}
{{if .MaxTotalMemory}}
<th class="text-center">最大内存使用量</th>
{{end}}
{{end}}
<th class="text-center">第一次出现时间</th>
<th class="text-center">最近一次出现时间</th>
<th class="text-center">数据库名</th>
<th class="text-center">DigestPrefix</th>
<th class="text-left">Digest Text</th>
{{with index .slowLogSummary 0}}
{{if .SampleSQL}}
<th class="text-left">Sample SQL</th>
{{end}}
{{end}}
{{else}}
<th class="text-center">排名</th>
<th class="text-center">总耗时</th>
<th class="text-center">耗时占比</th>
<th class="text-center">总执行次数</th>
<th class="text-center">平均耗时</th>
<th class="text-center">平均扫描行数</th>
<th class="text-center">平均发送行数</th>
<th class="text-center">数据库名</th>
<th class="text-center">Digest</th>
<th class="text-left">Sample SQL</th>
{{end}}
</tr>
</thead>
<tbody>
{{if eq .slowLogSource "performance_schema"}}
{{range .slowLogSummary}}
<tr>
<td class="text-center">{{ .RowNum}}</td>
<td class="text-center">{{ .TotalLatency}}</td>
<td class="text-center">{{ .ExecutionCount}}</td>
<td class="text-center">{{ .AvgLatency}}</td>
<td class="text-center">{{ .RowsExaminedAvg}}</td>
<td class="text-center">{{ .RowsSentAvg}}</td>
{{if .CpuTimeAvg}}
<td class="text-center">{{ .CpuTimeAvg }}</td>
{{end}}
{{if .MaxTotalMemory}}
<td class="text-center">{{ .MaxTotalMemory }}</td>
{{end}}
<td class="text-center">{{ .FirstSeen}}</td>
<td class="text-center">{{ .LastSeen}}</td>
<td class="text-center">{{ .Database}}</td>
<td class="text-center">{{ .Digest}}</td>
<td class="text-left">{{ .DigestText}}</td>
{{if .SampleSQL}}
<td class="text-left">{{ .SampleSQL}}</td>
{{end}}
</tr>
{{end}}
{{else}}
{{range .slowLogSummary}}
<tr>
<td class="text-center">{{ .Rank}}</td>
<td class="text-center">{{ .ResponseTime}}</td>
<td class="text-center">{{ .ResponseRatio}}</td>
<td class="text-center">{{ .Calls}}</td>
<td class="text-center">{{ .AvgExecTime}}</td>
<td class="text-center">{{ .RowsExamine}}</td>
<td class="text-center">{{ .RowsSent}}</td>
<td class="text-center">{{ .Database}}</td>
<td class="text-center">{{ .Digest}}</td>
<td class="text-left">{{range .SampleSQL}}{{.}};<br>{{end}}</td>
</tr>
{{end}}
{{end}}
</tbody>
</table>
</div>
</div>
</div>
</div>
</body>
</html>
`
var currentTime time.Time
// Config结构用于存储命令行参数
type Config struct {
Help bool
Source string
Host string
Username string
Password string
Database string
Port int
PtCmd string
Slowlog string
Since string
Until string
Yday bool
ResultFile string
}
// 自定义命令行参数帮助信息
func customUsage() {
fmt.Fprintf(os.Stdout, `slow-log-summary version: 1.0.0
Usage:
slow-log-summary -source <source_type> -r <output_file> [other options]
Example:
./slow-log-summary -source perf -h 10.0.0.168 -P 3306 -u root -p '123456'
./slow-log-summary -source slowlog -pt /usr/local/bin/pt-query-digest -slowlog /data/mysql/3306/data/n1-slow.log
Common Options:
-help
Display usage
Source Type Options:
-source string
Slow log source: 'perf' or 'slowlog' (default "perf")
Output File Options:
-r string
Direct output to a given file (default "/tmp/slow-log-summary-20060102-150405.html")
Options when source is 'perf':
-h string
MySQL host (default "localhost")
-P int
MySQL port (default 3306)
-u string
MySQL username (default "root")
-p string
MySQL password
-D string
MySQL database (default "performance_schema")
Options when source is 'slowlog':
-pt string
Absolute path for pt-query-digest. Example: /usr/local/bin/pt-query-digest
-slowlog string
Absolute path for slowlog. Example: /var/log/mysql/node1-slow.log
-since string
Parse only queries newer than this value, YYYY-MM-DD [HH:MM:SS]
-until string
Parse only queries older than this value, YYYY-MM-DD [HH:MM:SS]
-yday
Parse yesterday's slowlog
`)
}
// 解析命令行参数
func (c *Config) ParseFlags() {
resultFileName := fmt.Sprintf("/tmp/slow-log-summary-%s.html", currentTime.Format("20060102-150405"))
f := flag.NewFlagSet(os.Args[0], flag.ExitOnError)
f.BoolVar(&c.Help, "help", false, "Display usage")
f.StringVar(&c.Source, "source", "", "Slow log source")
f.StringVar(&c.Host, "h", "localhost", "MySQL host")
f.IntVar(&c.Port, "P", 3306, "MySQL port")
f.StringVar(&c.Username, "u", "root", "MySQL username")
f.StringVar(&c.Password, "p", "", "MySQL password")
f.StringVar(&c.Database, "D", "performance_schema", "MySQL database")
f.StringVar(&c.PtCmd, "pt", "", "Absolute path for pt-query-digest. Example:/usr/local/bin/pt-query-digest")
f.StringVar(&c.Slowlog, "slowlog", "", "Absolute path for slowlog. Example:/var/log/mysql/node1-slow.log")
f.StringVar(&c.Since, "since", "", "Parse only queries newer than this value,YYYY-MM-DD [HH:MM:SS]")
f.StringVar(&c.Until, "until", "", "Parse only queries older than this value,YYYY-MM-DD [HH:MM:SS]")
f.BoolVar(&c.Yday, "yday", false, "Parse yesterday's slowlog")
f.StringVar(&c.ResultFile, "r", resultFileName, "Direct output to a given file")
f.Parse(os.Args[1:])
if c.Help {
customUsage()
os.Exit(0)
}
}
// 执行系统命令
func executeCommand(command string, args []string) (string, error) {
cmd := exec.Command(command, args...)
var stdout bytes.Buffer
var stderr bytes.Buffer
cmd.Stdout = &stdout
cmd.Stderr = &stderr
err := cmd.Run()
if err != nil {
return "", fmt.Errorf("command %s %v failed with %s", command, args, stderr.String())
}
return stdout.String(), nil
}
// 获取通过pt-query-digest解析的慢日志汇总报告
func getSlowLogSummaryByPtQueryDigest(ptQueryDigestCmd []string, slowlogFile string, now string) map[string]interface{} {
cmdTimeWithQuotes := make([]string, len(ptQueryDigestCmd))
for i, arg := range ptQueryDigestCmd {
if strings.Contains(arg, " ") {
cmdTimeWithQuotes[i] = `"` + arg + `"`
} else {
cmdTimeWithQuotes[i] = arg
}
}
fmt.Printf("Executing pt-query-digest command: %s\n", strings.Join(cmdTimeWithQuotes, " "))
slowLog, err := executeCommand("perl", ptQueryDigestCmd)
if err != nil {
log.Fatalf("Error: Failed to execute the Perl command for pt-query-digest: %v", err)
}
if strings.Contains(string(slowLog), "# No events processed") {
log.Println("Warning: No events processed")
}
lines := strings.Split(slowLog, "\n")
ptQueryDigestReportPath := fmt.Sprintf("/tmp/pt-query-digest-report-%s.txt", currentTime.Format("20060102-150405"))
// Write slowLog content to the file
err = ioutil.WriteFile(ptQueryDigestReportPath, []byte(slowLog), 0644)
if err != nil {
log.Printf("Warning: Failed to write slowLog content to file: %v", err)
}
fmt.Println(fmt.Sprintf("pt-query-digest report written to file %s", ptQueryDigestReportPath))
linesNums := len(lines)
timeRangeFlag := false
var timeRangeStart string
var timeRangeEnd string
profileFlag := false
sampleFlag := false
sampleSQL := []string{}
sampleSQLInfo := make(map[string]string)
slowLogProfile := [][]string{}
sampleSQLs := make(map[string]map[string]string)
var queryID string
for k, line := range lines {
if strings.Contains(line, "# Overall") {
timeRangeFlag = true
continue
}
if timeRangeFlag {
if strings.HasPrefix(line, "# Time range") {
re, _ := regexp.Compile(" +")
rowToArray := re.Split(line, -1)
timeRangeStart, timeRangeEnd = rowToArray[3], rowToArray[5]
timeRangeStart = strings.Replace(timeRangeStart, "T", " ", 1)
timeRangeEnd = strings.Replace(timeRangeEnd, "T", " ", 1)
timeRangeFlag = false
}
}
if strings.Contains(line, "# Profile") {
profileFlag = true
continue
} else if profileFlag && (len(line) == 0 || strings.HasPrefix(line, "# MISC 0xMISC")) {
profileFlag = false
continue
}
if profileFlag {
if strings.HasPrefix(line, "# Rank") || strings.HasPrefix(line, "# ====") {
continue
}
re, _ := regexp.Compile(" +")
rowToArray := re.Split(line, 9)
slowLogProfile = append(slowLogProfile, rowToArray)
} else if strings.Contains(line, "concurrency, ID 0x") {
re := regexp.MustCompile(`(?U)ID (0x.*) `)
queryID = re.FindStringSubmatch(line)[1]
sampleFlag = true
sampleSQL = []string{}
sampleSQLInfo = make(map[string]string)
} else if sampleFlag && (strings.HasPrefix(line, "# Exec time") || strings.HasPrefix(line, "# Lock time")) {
re, _ := regexp.Compile(" +")
rowToArray := re.Split(line, -1)
sampleSQLInfo[rowToArray[1]] = rowToArray[7]
} else if sampleFlag && (strings.HasPrefix(line, "# Rows sent") || strings.HasPrefix(line, "# Rows examine")) {
re, _ := regexp.Compile(" +")
rowToArray := re.Split(line, -1)
sampleSQLInfo[rowToArray[2]] = rowToArray[7]
} else if sampleFlag && (strings.HasPrefix(line, "# Databases")) {
re, _ := regexp.Compile(" +")
rowToArray := re.Split(line, 3)
sampleSQLInfo["Databases"] = rowToArray[2]
} else if sampleFlag && (!strings.HasPrefix(line, "#")) && len(line) != 0 {
sampleSQL = append(sampleSQL, line)
} else if sampleFlag && (len(line) == 0 || k == (linesNums-1)) {
sampleFlag = false
sampleSQLText := strings.Join(sampleSQL, "\n")
sampleSQLText = strings.TrimRight(sampleSQLText, "\\G")
sampleSQLInfo["sampleSQL"] = sampleSQLText
sampleSQLs[queryID] = sampleSQLInfo
}
}
for i, v := range slowLogProfile {
for key := range sampleSQLs {
miniQueryID := strings.Trim(v[2], ".")
if strings.Contains(key, miniQueryID) {
v[8] = sampleSQLs[key]["sampleSQL"]
v[2] = key
v = append(v, sampleSQLs[key]["Exec"], sampleSQLs[key]["Lock"], sampleSQLs[key]["sent"], sampleSQLs[key]["examine"], sampleSQLs[key]["Databases"])
slowLogProfile[i] = v
break
}
}
}
type slowlog struct {
Rank string
ResponseTime string
ResponseRatio string
Calls string
AvgExecTime string
AvgLockTime string
RowsSent string
RowsExamine string
Database string
Digest string
SampleSQL []string
}
slowlogs := []slowlog{}
for _, value := range slowLogProfile {
// 之所以要将字符串分隔为切片，主要是为了模板渲染时生成换行符<br>
sampleSQLSplitResult := strings.Split(value[8], "\\G")
slowlogrecord := slowlog{value[1], value[3], value[4], value[5], value[9], value[10], value[11], value[12], value[13], value[2], sampleSQLSplitResult}
slowlogs = append(slowlogs, slowlogrecord)
}
return map[string]interface{}{"slowLogSource": slowlogFile, "slowLogSummary": slowlogs, "now": now, "timeRangeStart": timeRangeStart, "timeRangeEnd": timeRangeEnd}
}
// 将纳秒时间戳格式化为日期时间字符串
func formatPicoTime(val string) string {
timeVal, err := strconv.ParseFloat(val, 64)
if err != nil {
log.Fatalf("Error: Conversion failed: %v\n", err)
}
if math.IsNaN(timeVal) {
return "null"
}
const (
nano = 1000
micro = 1000 * nano
milli = 1000 * micro
sec = 1000 * milli
min = 60 * sec
hour = 60 * min
day = 24 * hour
)
var divisor uint64
var unit string
timeAbs := math.Abs(timeVal)
if timeAbs >= float64(day) {
divisor = day
unit = "d"
} else if timeAbs >= float64(hour) {
divisor = hour
unit = "h"
} else if timeAbs >= float64(min) {
divisor = min
unit = "min"
} else if timeAbs >= float64(sec) {
divisor = sec
unit = "s"
} else if timeAbs >= float64(milli) {
divisor = milli
unit = "ms"
} else if timeAbs >= float64(micro) {
divisor = micro
unit = "us"
} else if timeAbs >= float64(nano) {
divisor = nano
unit = "ns"
} else {
divisor = 1
unit = "ps"
}
var result string
if divisor == 1 {
result = fmt.Sprintf("%.3f %s", timeVal, unit)
} else {
value := timeVal / float64(divisor)
if math.Abs(value) >= 100000.0 {
result = fmt.Sprintf("%.2e %s", value, unit)
} else {
result = fmt.Sprintf("%.2f %s", value, unit)
}
}
return result
}
func IsMySQLVersionGreaterOrEqual(version1, version2 string) bool {
// 对于 5.7.44-log 之类的版本号，首先会去掉中划线及中划线之后的字符
version1 = strings.Split(version1, "-")[0]
version2 = strings.Split(version2, "-")[0]
parts1 := strings.Split(version1, ".")
parts2 := strings.Split(version2, ".")
for i := 0; i < len(parts1) && i < len(parts2); i++ {
v1, _ := strconv.Atoi(parts1[i])
v2, _ := strconv.Atoi(parts2[i])
if v1 > v2 {
return true
} else if v1 < v2 {
return false
}
}
return true
}
// 从performance_schema中获取慢日志汇总报告
func getSlowLogSummaryFromPerformanceSchema(username string, password string, host string, database string, port int, now string) map[string]interface{} {
// 创建数据库连接
dsn := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s", username, password, host, port, database)
db, err := sqlx.Connect("mysql", dsn)
if err != nil {
log.Fatalf("Error: Failed to establish a connection to the database: %v", err)
}
defer db.Close()
var statementAnalysisSQL string
var mysqlVersion string
err = db.Get(&mysqlVersion, "SELECT VERSION()")
if err != nil {
log.Fatalf("Error: Failed to retrieve MySQL version: %v", err)
}
// 检查 MySQL 版本
var queryColumn string
if IsMySQLVersionGreaterOrEqual(mysqlVersion, "8.0.0") {
queryColumn = ", IFNULL(QUERY_SAMPLE_TEXT,'NULL') AS sample_query"
if IsMySQLVersionGreaterOrEqual(mysqlVersion, "8.0.28") {
// 查询 performance_schema.setup_consumers 中 'events_statements_cpu' 记录的 enabled 列
var eventsStatementsCPUEnabled string
err = db.Get(&eventsStatementsCPUEnabled, "SELECT enabled FROM performance_schema.setup_consumers WHERE name='events_statements_cpu'")
if err != nil {
log.Fatalf("Error: Failed to retrieve events_statements_cpu enabled status: %v", err)
}
if eventsStatementsCPUEnabled == "YES" {
queryColumn += ", ROUND(IFNULL(SUM_CPU_TIME / NULLIF(COUNT_STAR, 0), 0), 0) AS cup_time_avg"
}
}
if IsMySQLVersionGreaterOrEqual(mysqlVersion, "8.0.31") {
queryColumn += ", FORMAT_BYTES(MAX_TOTAL_MEMORY) AS max_total_memory"
}
} else if !IsMySQLVersionGreaterOrEqual(mysqlVersion, "5.6.0") {
log.Fatalf("Error: MySQL version %s is not supported. This tool only supports MySQL 5.6 and above.", mysqlVersion)
}
statementAnalysisSQL = fmt.Sprintf(`
SELECT
CASE WHEN SCHEMA_NAME IS NULL AND DIGEST IS NULL THEN 'NULL'
WHEN SCHEMA_NAME IS NULL THEN ''
ELSE SCHEMA_NAME
END AS db,
IF(SUM_NO_GOOD_INDEX_USED > 0 OR SUM_NO_INDEX_USED > 0, 'Y', 'N') AS full_scan,
COUNT_STAR AS exec_count,
SUM_ERRORS AS err_count,
SUM_WARNINGS AS warn_count,
SUM_TIMER_WAIT AS total_latency,
MAX_TIMER_WAIT AS max_latency,
AVG_TIMER_WAIT AS avg_latency,
SUM_LOCK_TIME AS lock_latency,
SUM_ROWS_SENT AS rows_sent,
ROUND(IFNULL(SUM_ROWS_SENT / NULLIF(COUNT_STAR, 0), 0), 0) AS rows_sent_avg,
SUM_ROWS_EXAMINED AS rows_examined,
ROUND(IFNULL(SUM_ROWS_EXAMINED / NULLIF(COUNT_STAR, 0), 0), 0) AS rows_examined_avg,
SUM_ROWS_AFFECTED AS rows_affected,
ROUND(IFNULL(SUM_ROWS_AFFECTED / NULLIF(COUNT_STAR, 0), 0), 0) AS rows_affected_avg,
SUM_CREATED_TMP_TABLES AS tmp_tables,
SUM_CREATED_TMP_DISK_TABLES AS tmp_disk_tables,
SUM_SORT_ROWS AS rows_sorted,
SUM_SORT_MERGE_PASSES AS sort_merge_passes,
CASE
WHEN DIGEST IS NULL THEN 'NULL'
ELSE LEFT(DIGEST,10)
END AS digest,
IFNULL(DIGEST_TEXT,'NULL') AS digest_text,
DATE_FORMAT(FIRST_SEEN, '%%Y-%%m-%%d %%H:%%i:%%s') AS first_seen,
DATE_FORMAT(LAST_SEEN, '%%Y-%%m-%%d %%H:%%i:%%s') AS last_seen
%s
FROM performance_schema.events_statements_summary_by_digest
ORDER BY total_latency DESC
`, queryColumn)
type QuerySummary struct {
RowNum int
SampleSQL string `db:"sample_query"`
Database string `db:"db"`
FullScan string `db:"full_scan"`
ExecutionCount int `db:"exec_count"`
ErrorCount int `db:"err_count"`
WarningCount int `db:"warn_count"`
TotalLatency string `db:"total_latency"`
MaxLatency string `db:"max_latency"`
AvgLatency string `db:"avg_latency"`
LockLatency string `db:"lock_latency"`
RowsSent int `db:"rows_sent"`
RowsSentAvg int `db:"rows_sent_avg"`
RowsExamined int `db:"rows_examined"`
RowsExaminedAvg int `db:"rows_examined_avg"`
RowsAffected int `db:"rows_affected"`
RowsAffectedAvg int `db:"rows_affected_avg"`
TmpTables int `db:"tmp_tables"`
TmpDiskTables int `db:"tmp_disk_tables"`
RowsSorted int `db:"rows_sorted"`
SortMergePasses int `db:"sort_merge_passes"`
Digest string `db:"digest"`
DigestText string `db:"digest_text"`
FirstSeen string `db:"first_seen"`
LastSeen string `db:"last_seen"`
CpuTimeAvg string `db:"cup_time_avg"`
MaxTotalMemory string `db:"max_total_memory"`
}
var QuerySummaries []QuerySummary
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
err = db.SelectContext(ctx, &QuerySummaries, statementAnalysisSQL)
if err != nil {
log.Fatalf("Error: Failed to retrieve query summaries from the database: %v", err)
}
for i, summary := range QuerySummaries {
summary.RowNum = i + 1
summary.TotalLatency = formatPicoTime(summary.TotalLatency)
summary.MaxLatency = formatPicoTime(summary.MaxLatency)
summary.AvgLatency = formatPicoTime(summary.AvgLatency)
summary.LockLatency = formatPicoTime(summary.LockLatency)
if summary.CpuTimeAvg != "" {
summary.CpuTimeAvg = formatPicoTime(summary.CpuTimeAvg)
}
QuerySummaries[i] = summary
}
return map[string]interface{}{"slowLogSource": "performance_schema", "slowLogSummary": QuerySummaries, "now": now, "instanceAddr": fmt.Sprintf("%s:%d", host, port), "mysqlVersion": mysqlVersion}
}
func validateAndConstructCmd(pt, slowlog, since, until string, yday bool) []string {
if len(pt) == 0 || len(slowlog) == 0 {
log.Fatalf("Error: Both -pt and -slowlog parameters are required.")
}
today := time.Now().Format("2006-01-02")
yesterday := time.Now().AddDate(0, 0, -1).Format("2006-01-02")
var ptQueryDigestCmd []string
ptQueryDigestCmd = append(ptQueryDigestCmd, pt)
ptQueryDigestCmd = append(ptQueryDigestCmd, slowlog)
if len(since) != 0 || yday {
ptQueryDigestCmd = append(ptQueryDigestCmd, "--since")
if len(since) != 0 {
ptQueryDigestCmd = append(ptQueryDigestCmd, since)
} else {
ptQueryDigestCmd = append(ptQueryDigestCmd, yesterday)
}
}
if len(until) != 0 || yday {
ptQueryDigestCmd = append(ptQueryDigestCmd, "--until")
if len(until) != 0 {
ptQueryDigestCmd = append(ptQueryDigestCmd, until)
} else {
ptQueryDigestCmd = append(ptQueryDigestCmd, today)
}
}
return ptQueryDigestCmd
}
func main() {
cst := time.FixedZone("CST", 8*60*60)
currentTime = time.Now().In(cst)
conf := Config{}
conf.ParseFlags()
report_content := make(map[string]interface{})
now := currentTime.Format("2006-01-02 15:04:05")
log.SetFlags(log.Lshortfile)
if len(conf.Source) == 0 {
log.Fatalf("Error: The --source parameter is required.")
}
if conf.Source == "perf" {
if conf.Since != "" || conf.Until != "" || conf.Yday {
log.Fatalf("Error: Parameters 'since', 'until', and 'yday' are not allowed when source is set to 'perf'.")
}
}
if conf.Source == "perf" {
if conf.Password == "" {
fmt.Print("Enter MySQL password: ")
bytePassword, err := terminal.ReadPassword(int(os.Stdin.Fd()))
fmt.Println()
if err != nil {
log.Fatalf("Error: Failed to read the password - %v", err)
}
conf.Password = string(bytePassword)
}
report_content = getSlowLogSummaryFromPerformanceSchema(conf.Username, conf.Password, conf.Host, conf.Database, conf.Port, now)
}
if conf.Source == "slowlog" {
ptQueryDigestCmd := validateAndConstructCmd(conf.PtCmd, conf.Slowlog, conf.Since, conf.Until, conf.Yday)
report_content = getSlowLogSummaryByPtQueryDigest(ptQueryDigestCmd, conf.Slowlog, now)
}
// 创建并写入HTML报告
var report = template.Must(template.New("slowlog").Parse(temp))
file, err := os.Create(conf.ResultFile)
if err != nil {
log.Fatal(err)
}
defer file.Close()
report.Execute(file, report_content)
fmt.Println(fmt.Sprintf("Output written to file %s", conf.ResultFile))
}