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92aedde121
- 为 SQLServer 连接池保留 1 条空闲连接，减少反复冷连接开销 - 复用 Oracle/OceanBase 的默认空闲连接常量，其他默认数据库池策略保持不变 - 新增连接池行为测试，覆盖 SQLServer 复用与默认池关闭 idle 连接
41 lines
1023 B
Go
41 lines
1023 B
Go
package db
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import (
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"database/sql"
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"strings"
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"time"
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)
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const (
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defaultSQLMaxOpenConns = 4
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defaultSQLMaxIdleConns = 1
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defaultSQLConnMaxLifetime = 30 * time.Minute
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defaultSQLConnMaxIdleTime = 30 * time.Second
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)
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func configureSQLConnectionPool(db *sql.DB, dbType string) {
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if db == nil {
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return
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}
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switch strings.ToLower(strings.TrimSpace(dbType)) {
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case "sqlite", "duckdb":
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return
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case "oracle", "oceanbase":
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db.SetMaxOpenConns(defaultSQLMaxOpenConns)
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db.SetMaxIdleConns(defaultSQLMaxIdleConns)
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db.SetConnMaxIdleTime(defaultSQLConnMaxIdleTime)
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db.SetConnMaxLifetime(defaultSQLConnMaxLifetime)
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return
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case "sqlserver":
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db.SetMaxOpenConns(defaultSQLMaxOpenConns)
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db.SetMaxIdleConns(defaultSQLMaxIdleConns)
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db.SetConnMaxIdleTime(defaultSQLConnMaxIdleTime)
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db.SetConnMaxLifetime(defaultSQLConnMaxLifetime)
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return
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}
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db.SetMaxOpenConns(defaultSQLMaxOpenConns)
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db.SetMaxIdleConns(0)
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db.SetConnMaxIdleTime(defaultSQLConnMaxIdleTime)
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db.SetConnMaxLifetime(defaultSQLConnMaxLifetime)
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}
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