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Nicola Strappazzon C
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Nov 5, 2023
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| package digest | ||
|
|
||
| import ( | ||
| "fmt" | ||
|
|
||
| "github.com/debeando/go-common/file" | ||
| "github.com/debeando/go-common/mysql/sql/digest" | ||
| "github.com/debeando/go-common/mysql/sql/parser/slow" | ||
| "github.com/debeando/go-common/table" | ||
|
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| "github.com/spf13/cobra" | ||
| ) | ||
|
|
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| func NewCommand() *cobra.Command { | ||
| var cmd = &cobra.Command{ | ||
| Use: "digest [FILENAME]", | ||
| Short: "Analyze MySQL slow query log.", | ||
| Run: func(cmd *cobra.Command, args []string) { | ||
| if len(args) != 1 { | ||
| cmd.Help() | ||
| return | ||
| } | ||
|
|
||
| if !file.Exist(args[0]) { | ||
| fmt.Println(fmt.Sprintf("File not exist: %s", args[0])) | ||
| return | ||
| } | ||
|
|
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| queries := &digest.List{} | ||
| channelIn := make(chan string) | ||
| channelOut := make(chan string) | ||
|
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| defer close(channelIn) | ||
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| go slow.LogsParser(channelIn, channelOut) | ||
|
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| go func() { | ||
| defer close(channelOut) | ||
| for log := range channelOut { | ||
| queries.Add(slow.QueryParser(log)) | ||
| } | ||
| }() | ||
|
|
||
| file.ReadLineByLine(args[0], func(line string) { | ||
| channelIn <- line | ||
| }) | ||
|
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| queries.FilterByQueryTime(0.100) | ||
|
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| fmt.Println( | ||
| fmt.Sprintf("Slow query total: %d, Filtered: %d, Analyzed %d, Unique: %d.", | ||
| queries.Count(), | ||
| queries.Filtered(), | ||
| queries.Analyzed(), | ||
| queries.Unique())) | ||
|
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| tbl := table.New( | ||
| "DIGEST ID", "SCORE", "COUNT", "Q. TIME", | ||
| "L. TIME", "R. SENT", "R. EXAMINED", | ||
| ) | ||
|
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| queries.Clean() | ||
| queries.SortByScore() | ||
|
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| min := queries.ScoreMin() | ||
| max := queries.ScoreMax() | ||
|
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| for index := range *queries { | ||
| tbl.AddRow( | ||
| (*queries)[index].ID, | ||
| formatScore(min, max, (*queries)[index].Score), | ||
| (*queries)[index].Count, | ||
| formatTime((*queries)[index].Time.Query), | ||
| formatTime((*queries)[index].Time.Lock), | ||
| (*queries)[index].Rows.Sent, | ||
| (*queries)[index].Rows.Examined, | ||
| ) | ||
| } | ||
| tbl.Print() | ||
| }, | ||
| } | ||
|
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||
| return cmd | ||
| } | ||
|
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| func formatTime(seconds float64) string { | ||
| if seconds < 1e-6 { | ||
| return fmt.Sprintf("%06.3f", seconds*1e6) | ||
| } else if seconds < 1e-3 { | ||
| return fmt.Sprintf("%06.3f", seconds*1e3) | ||
| } | ||
| return fmt.Sprintf("%06.3f", seconds) | ||
| } | ||
|
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| func formatScore(min, max, score float64) string { | ||
| return fmt.Sprintf("%03d", int(((score-min)/(max-min))*99+1)) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| package mysql | ||
|
|
||
| import ( | ||
| "zenit/mysql/digest" | ||
|
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| "github.com/spf13/cobra" | ||
| ) | ||
|
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| func NewCommand() *cobra.Command { | ||
| var cmd = &cobra.Command{ | ||
| Use: "mysql", | ||
| Short: "MySQL commands to facilitate administration.", | ||
| Run: func(cmd *cobra.Command, args []string) { | ||
| cmd.Help() | ||
| }, | ||
| } | ||
|
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| cmd.AddCommand(digest.NewCommand()) | ||
|
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| return cmd | ||
| } |