WebApr 29, 2013 · SET lock 1 EX 10 NX will set a lock only if it does not already exists and it will expire after 10 second. I'm using Node Redis, which has a set () method, but I'm not sure how to pass it the additional parameters to have the key expire and not be created if it … WebFeb 3, 2024 · To set the MYPATH environment variable in the local environment to use the search path defined in the PATH environment variable after replacing ~ with %, type: setx MYPATH ~PATH~. To set the MACHINE environment variable in the local environment …
Set command not working with EX/PX, NX parameters #793 - Github
WebJul 23, 2024 · The SET commands accepts the following options: EX seconds – Set the specified expire time, in seconds. PX milliseconds – Set the specified expire time, in milliseconds. NX – Only set the key if it does not already exist. XX – Only set the key if it … http://www.hzhcontrols.com/new-1393759.html dlts analyse
node.js - Node Redis - SET with EX and NX? - Stack …
WebThe SETNX command is used to set a string value at a specified key. If the key already exist, then operation will be failed and 0 will be returned otherwise string value is stored at the key and 1 will be returned. The syntax of redis SETNX command is as follows :- … Web有小伙伴肯定会疑惑万一set value 成功 set time失败,那不就傻了么,这啊Redis官网想到了。 setex是一个原子性(atomic)操作,关联值和设置生存时间两个动作会在同一时间内完成。 我设置了10秒的失效时间,ttl命令可以查看倒计时,负的说明已经到期了。 Web因为redis版本在2.6.12之前,set是不支持nx参数的,如果想要完成一个锁,那么需要两条命令: 1. setnx Test uuid 2. expire Test 30 即放入Key和设置有效期,是分开的两步,理论上会出现 1 刚执行完,程序挂掉,无法保证原子性。 crc church northriding