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处理日志中的Mysql error日志 #306

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处理日志中的Mysql error日志 #306

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10 changes: 7 additions & 3 deletions database/mysql.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2,14 +2,14 @@ package database

import (
"database/sql"
"time"

_ "github.com/go-sql-driver/mysql"
"github.com/lithammer/shortuuid/v3"
"github.com/mritd/logger"
)

type MySQL struct {
}
type MySQL struct{}

var mysqlDB *sql.DB

Expand All @@ -24,12 +24,16 @@ const (
") ENGINE=InnoDB DEFAULT CHARSET=utf8mb4"
)

func NewMySQL(dsn string) Database {
func NewMySQL(dsn string, maxConns int) Database {
db, err := sql.Open("mysql", dsn)
if err != nil {
logger.Fatalf("failed to open database connection (%s): %v", dsn, err)
}

db.SetMaxOpenConns(maxConns)
db.SetMaxIdleConns(maxConns)
db.SetConnMaxLifetime(time.Minute * 3)

_, err = db.Exec(dbSchema)
if err != nil {
logger.Fatalf("failed to init database schema(%s): %v", dbSchema, err)
Expand Down
8 changes: 7 additions & 1 deletion main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -57,6 +57,12 @@ func main() {
EnvVars: []string{"BARK_SERVER_DSN"},
Value: "",
},
&cli.IntFlag{
Name: "mysql-max-open-conns",
Usage: "mysql max open connections",
EnvVars: []string{"BARK_SERVER_MYSQL_MAX_OPEN_CONNS"},
Value: 20,
},
&cli.BoolFlag{
Name: "serverless",
Usage: "serverless mode",
Expand Down Expand Up @@ -192,7 +198,7 @@ func main() {
// use system environment variable.
db = database.NewEnvBase()
} else if dsn := c.String("dsn"); dsn != "" {
db = database.NewMySQL(dsn)
db = database.NewMySQL(dsn, c.Int("mysql-max-open-conns"))
} else {
db = database.NewBboltdb(c.String("data"))
}
Expand Down