Redis 的 sentnx 和 watch 都可以用来做锁么？ - V2EX
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fallenff
V2EX    Java

Redis 的 sentnx 和 watch 都可以用来做锁么？

  •   
  •   fallenff May 7, 2017 2925 views
    This topic created in 3277 days ago, the information mentioned may be changed or developed.

    感觉好像都行？ watch 是事务期间如果其他客户端修改了这个键，那么就无法完成事务。

    sentnx 给他设置过期时间，也等于是设置了一个锁吧

  • sentnx
  • Watch
  • 事务
  • Redis
    5 replies    2017-05-08 16:27:12 +08:00
    0915240
        1
    0915240  
       May 8, 2017 via iPhone
    还有 getset
    honam
        2
    honam  
       May 8, 2017
    我也是用 setnx+expire+del 做锁的
    fallenff
        3
    fallenff  
    OP
       May 8, 2017 via Android
    @honam 嗷，感觉 watch 也可以做？
    jameshuazhou
        4
    jameshuazhou  
       May 8, 2017
    watch 多用于做乐观锁，比较适合冲突少的场景
    phx13ye
        5
    phx13ye  
       May 8, 2017
    incr(key)== 1 也可以
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