seaweedfs/weed/filer/mysql/mysql_store.go
Konstantin Lebedev 3c9bcfb864
chore: add dsn for connection to mysql (#5060)
* chore: add dsn for connection to mysql

* add comment

* new comment

* fix: validate dsn and adapt password
2023-12-20 16:20:58 -08:00

92 lines
2.5 KiB
Go

package mysql
import (
"database/sql"
"fmt"
"github.com/go-sql-driver/mysql"
"strings"
"time"
"github.com/seaweedfs/seaweedfs/weed/filer"
_ "github.com/go-sql-driver/mysql"
"github.com/seaweedfs/seaweedfs/weed/filer/abstract_sql"
"github.com/seaweedfs/seaweedfs/weed/util"
)
const (
CONNECTION_URL_PATTERN = "%s:%s@tcp(%s:%d)/%s?collation=utf8mb4_bin"
)
func init() {
filer.Stores = append(filer.Stores, &MysqlStore{})
}
type MysqlStore struct {
abstract_sql.AbstractSqlStore
}
func (store *MysqlStore) GetName() string {
return "mysql"
}
func (store *MysqlStore) Initialize(configuration util.Configuration, prefix string) (err error) {
return store.initialize(
configuration.GetString(prefix+"dsn"),
configuration.GetString(prefix+"upsertQuery"),
configuration.GetBool(prefix+"enableUpsert"),
configuration.GetString(prefix+"username"),
configuration.GetString(prefix+"password"),
configuration.GetString(prefix+"hostname"),
configuration.GetInt(prefix+"port"),
configuration.GetString(prefix+"database"),
configuration.GetInt(prefix+"connection_max_idle"),
configuration.GetInt(prefix+"connection_max_open"),
configuration.GetInt(prefix+"connection_max_lifetime_seconds"),
configuration.GetBool(prefix+"interpolateParams"),
)
}
func (store *MysqlStore) initialize(dsn string, upsertQuery string, enableUpsert bool, user, password, hostname string, port int, database string, maxIdle, maxOpen,
maxLifetimeSeconds int, interpolateParams bool) (err error) {
store.SupportBucketTable = false
if !enableUpsert {
upsertQuery = ""
}
store.SqlGenerator = &SqlGenMysql{
CreateTableSqlTemplate: "",
DropTableSqlTemplate: "DROP TABLE `%s`",
UpsertQueryTemplate: upsertQuery,
}
if dsn == "" {
dsn = fmt.Sprintf(CONNECTION_URL_PATTERN, user, password, hostname, port, database)
if interpolateParams {
dsn += "&interpolateParams=true"
}
}
cfg, err := mysql.ParseDSN(dsn)
if err != nil {
return fmt.Errorf("can not parse DSN error:%v", err)
}
var dbErr error
store.DB, dbErr = sql.Open("mysql", dsn)
if dbErr != nil {
store.DB.Close()
store.DB = nil
return fmt.Errorf("can not connect to %s error:%v", strings.ReplaceAll(dsn, cfg.Passwd, "<ADAPTED>"), err)
}
store.DB.SetMaxIdleConns(maxIdle)
store.DB.SetMaxOpenConns(maxOpen)
store.DB.SetConnMaxLifetime(time.Duration(maxLifetimeSeconds) * time.Second)
if err = store.DB.Ping(); err != nil {
return fmt.Errorf("connect to %s error:%v", strings.ReplaceAll(dsn, cfg.Passwd, "<ADAPTED>"), err)
}
return nil
}