feat: 更新SQLite连接配置,启用共享缓存和WAL模式,设置忙等待和内存映射参数
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@@ -1,9 +0,0 @@
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-- ----------------------------
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-- Configuration
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-- ----------------------------
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-- 启用完整的自动空间回收
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PRAGMA auto_vacuum = FULL;
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-- 日志模式设置为 WAL 并发写入
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PRAGMA journal_mode = WAL;
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PRAGMA synchronous = NORMAL;
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@@ -5,6 +5,7 @@ import (
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"log"
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"log"
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"os"
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"os"
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"regexp"
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"regexp"
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"strings"
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"time"
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"time"
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"github.com/glebarez/sqlite"
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"github.com/glebarez/sqlite"
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@@ -36,7 +37,15 @@ func loadDialect() map[string]dialectInfo {
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// 数据库类型对应的数据库连接
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// 数据库类型对应的数据库连接
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switch item["type"] {
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switch item["type"] {
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case "sqlite":
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case "sqlite":
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dsn := fmt.Sprintf("%s", item["database"])
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pragmas := []string{
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"cache=shared", // Enable shared cache
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"_pragma=journal_mode(WAL)", // Enable WAL mode
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"_pragma=busy_timeout(5000)", // Set busy timeout 抛出 SQLITE_BUSY 错误 默认0立即,设置等待 5 秒(5000 毫秒)
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"_pragma=synchronous(NORMAL)", // Set synchronous mode
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"_pragma=wal_autocheckpoint=5000", // Set WAL auto-checkpoint threshold 设置较大的自动检查点阈值
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"_pragma=mmap_size(67108864)", // Set mmap size 内存映射 I/O 最大字节数为 64MB
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}
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dsn := fmt.Sprintf("%s?%s", item["database"], strings.Join(pragmas, "&"))
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dialects[key] = dialectInfo{
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dialects[key] = dialectInfo{
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dialectic: sqlite.Open(dsn),
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dialectic: sqlite.Open(dsn),
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logging: parse.Boolean(item["logging"]),
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logging: parse.Boolean(item["logging"]),
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@@ -108,15 +117,6 @@ func Connect() {
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sqlDB.SetMaxOpenConns(100)
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sqlDB.SetMaxOpenConns(100)
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// SetConnMaxLifetime 设置了连接可复用的最大时间。
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// SetConnMaxLifetime 设置了连接可复用的最大时间。
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sqlDB.SetConnMaxLifetime(time.Hour)
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sqlDB.SetConnMaxLifetime(time.Hour)
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// 执行初始连接配置
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if db.Name() == "sqlite" {
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// -- 设置较大的自动检查点阈值
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sqlDB.Exec("PRAGMA wal_autocheckpoint = 5000;")
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// -- 内存映射 I/O 最大字节数为 64MB
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sqlDB.Exec("PRAGMA mmap_size = 67108864;")
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// 抛出 SQLITE_BUSY 错误 默认0立即,设置等待 5 秒(5000 毫秒)
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sqlDB.Exec("PRAGMA busy_timeout = 5000;")
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}
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logger.Infof("database %s connection is successful.", key)
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logger.Infof("database %s connection is successful.", key)
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dbMap[key] = db
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dbMap[key] = db
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}
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}
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