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How to make two connection pools (with different DBs)?
How to make two connection pools (with different DBs)?
It just doesn't give. Why not?
db, err := sql.Open("mysql", ConnDB_One) // Connect to one database first.
db2, err := sql.Open("mysql", ConnDB_Two) // Connect to another DB below.
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Exactly as you wrote
db1, err := sql.Open("mysql", DSN1) // Сначала к одной БД подключение.
db2, err := sql.Open("mysql", DSN2) // Ниже к другой БД подключение.
// настраиваете пулы как вам нужно
db1.SetMaxIdleConns(10)
db1.SetMaxOpenConns(100)
db2.SetMaxIdleConns(10)
db2.SetMaxOpenConns(100)
package main
import (
"database/sql"
"log"
_ "github.com/go-sql-driver/mysql"
)
func main() {
db1, err := sql.Open("mysql", `user1:[email protected]/dbname1`) // Сначала к одной БД подключение.
if err != nil {
log.Fatal(err)
}
db2, err := sql.Open("mysql", `user2:[email protected]/dbname2`) // Ниже к другой БД подключение.
if err != nil {
log.Fatal(err)
}
// настраиваете пулы как вам нужно
db1.SetMaxIdleConns(10)
db1.SetMaxOpenConns(100)
db2.SetMaxIdleConns(10)
db2.SetMaxOpenConns(100)
}
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