极高并发同时读写,单文件存储的数据库,有吗? - V2EX
felixin

极高并发同时读写,单文件存储的数据库,有吗?

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  •   felixin Mar 22, 2021 2044 views
    This topic created in 1876 days ago, the information mentioned may be changed or developed.

    满足 100k/s 同时并发读写的单文件数据库,完全 fit in memory 的这种数据库存在吗?

    无论是 sql,nosql,kv,还是别的什么数据库都可以提一下。

    单文件存储是前提,数据量大小最大不会超过 1g,一般在 100m 左右。

    sqlite 就不用说了,写入性能太差。

    6 replies    2021-03-22 23:49:25 +08:00
    Jooooooooo
        1
    Jooooooooo  
       Mar 22, 2021
    没看懂"单文件"是啥意思

    是说一秒读写 100k 个文件, 每个文件平均 100M 吗?
    azh7138m
        2
    azh7138m  
       Mar 22, 2021 via iPhone
    @Jooooooooo
    应该是指 embedded


    文件直接丢内存不就好了,为啥还要个数据库,需要能用 SQL ?
    icyalala
        3
    icyalala  
       Mar 22, 2021
    leveldb?
    Jat001
        4
    Jat001  
       Mar 22, 2021
    @azh7138m #2 需要持久化吧
    felixin
        5
    felixin  
    OP
       Mar 22, 2021 via Android
    @Jooooooooo 是整个数据库 dump 出来就是一个文件,类似 sqlite
    felixin
        6
    felixin  
    OP
       Mar 22, 2021 via Android
    @azh7138m 需要 crash 后不丢数据
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