[提问] 数据库有所谓的连接池自动连接个数配置吗? - V2EX
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SethShi
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[提问] 数据库有所谓的连接池自动连接个数配置吗?

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  •   SethShi Aug 14, 2024 1590 views
    This topic created in 622 days ago, the information mentioned may be changed or developed.

    就类似自动扩容机制,数据库客户端 SDK 理论上是不是可以自己封装一下, 初始化一个大众可以接受的值,然后根据最近的调用次数,调用频率来说伸缩连接数。

    6 replies    2024-08-27 13:08:14 +08:00
    RandomJoke
        1
    RandomJoke  
       Aug 14, 2024
    各种连接池不就干这个事情的吗。。
    querysecret
        2
    querysecret  
       Aug 14, 2024
    @RandomJoke 他意思是数据库来根据实时性能 backpress 客户端的连接池
    xiaofan2
        3
    xiaofan2  
       Aug 15, 2024
    没看到非常明显的收益
    opengps
        4
    opengps  
       Aug 15, 2024
    你在数据库的配置文件里设置的是上限,不是强制固定,所以通常提倡设置大一点点
    weiqing
        5
    weiqing  
       Aug 27, 2024
    一般来说,还是希望连接数能够业务自己清楚一点。并且能够提供设置并发数目的方式控制一下。

    连接数可以调节,但是数据库的服务器的硬件资源是有上限的, 为了一个可靠的状态,还是最好对实际的并发数,连接数这些有一个基本的了解和控制。
    SethShi
        6
    SethShi  
    OP
       Aug 27, 2024 via Android
    @weiqing 并不是无限增长呀,有阔就有缩,如果连接超时,或者 p90 查询时间变长,那么可以降级一下
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