// 初始化leveldb
func (server *GoRedisServer) initLevelDB() (err error) {
opts := levelredis.NewOptions()
cache := levelredis.NewLRUCache(128 * 1024 * 1024)
opts.SetCache(cache)
opts.SetCompression(levelredis.SnappyCompression)
opts.SetBlockSize(8 * 1024)
opts.SetMaxBackgroundCompactions(6)
opts.SetWriteBufferSize(32 * 1024 * 1024)
opts.SetMaxOpenFiles(100000)
opts.SetCreateIfMissing(true)
env := levelredis.NewDefaultEnv()
env.SetBackgroundThreads(6)
env.SetHighPriorityBackgroundThreads(2)
opts.SetEnv(env)
db, e1 := levelredis.Open(server.directory+"/db0", opts)
if e1 != nil {
return e1
}
server.levelRedis = levelredis.NewLevelRedis(db, false)
server.DeferClosing(func() {
opts.Close()
cache.Close()
env.Close()
stdlog.Println("db closed")
})
return
}
// 初始化主从日志
func (server *GoRedisServer) initSyncLog() error {
opts := levelredis.NewOptions()
cache := levelredis.NewLRUCache(32 * 1024 * 1024)
opts.SetCache(cache)
opts.SetCompression(levelredis.SnappyCompression)
opts.SetBlockSize(4 * 1024)
opts.SetMaxBackgroundCompactions(2)
opts.SetWriteBufferSize(32 * 1024 * 1024)
opts.SetMaxOpenFiles(100000)
opts.SetCreateIfMissing(true)
env := levelredis.NewDefaultEnv()
env.SetBackgroundThreads(2)
env.SetHighPriorityBackgroundThreads(1)
opts.SetEnv(env)
db, e1 := levelredis.Open(server.directory+"/synclog", opts)
if e1 != nil {
return e1
}
ldb := levelredis.NewLevelRedis(db, false)
server.synclog = NewSyncLog(ldb, "sync")
server.DeferClosing(func() {
opts.Close()
cache.Close()
env.Close()
stdlog.Println("synclog closed")
})
return nil
}