Node.js 使用数据库PG池的正确方法是什么

我正在使用node，我想使用它。我有这样一个简单的存储库：

初始化

示例选择代码

export default (
    {
        pgPool,
    }: Object
) => {
    return { 
        getExampleData: async (uid: string) => {
            const result = await pgPool.query('SELECT data FROM public.results_table WHERE uid = $1::text;', [uid])
            return result.rows
        },
    }
}

我的问题是，在压力下（很多请求），我得到了以下错误：

错误：剩余的连接插槽保留用于非复制 超级用户连接

---

我不确定我是否正确使用了pool。

我们pgpool.conf的一部分：

# - Pool size -

num_init_children = 100
                                   # Number of pools
                                   # (change requires restart)
max_pool = 3
                                   # (change requires restart)

# - Life time -

child_life_time = 120
                                   # Pool exits after being idle for this many seconds
child_max_connections = 0
                                   # Pool exits after receiving that many connections
                                   # 0 means no exit
connection_life_time = 90
                                   # Connection to backend closes after being idle for this many seconds
                                   # 0 means no close
client_idle_limit = 0
                                   # Client is disconnected after being idle for that many seconds
                                   # (even inside an explicit transactions!)
                                   # 0 means no disconnection

以下问题/答案也应该对您有所帮助：

---

相信这会有所帮助。

多少钱是“大量请求”？我们使用pgpool、haproxy和PHP。Apache和有很多客户端，没有任何问题。然而，我们已经调整了所有内容，使其拥有大约2000个同时运行的客户端。两台服务器，一个主服务器，一个从服务器和8个内核，带有16GB ram和2TB HDD，使用NFS。20/s:-D它正在测试DB，有25个连接插槽，1GB ram。。。

# - Pool size -

num_init_children = 100
                                   # Number of pools
                                   # (change requires restart)
max_pool = 3
                                   # (change requires restart)

# - Life time -

child_life_time = 120
                                   # Pool exits after being idle for this many seconds
child_max_connections = 0
                                   # Pool exits after receiving that many connections
                                   # 0 means no exit
connection_life_time = 90
                                   # Connection to backend closes after being idle for this many seconds
                                   # 0 means no close
client_idle_limit = 0
                                   # Client is disconnected after being idle for that many seconds
                                   # (even inside an explicit transactions!)
                                   # 0 means no disconnection