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@litert/redis

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A redis protocol implement for Node.js.

github.com/litert/redis.js

litert/redis.js

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# Pipeline 管道原理 LiteRT/Redis 的客户端实现中，Pipeline 有两种使用方式：**事务**和**管线**。 ## 1. 事务 事务是指通过 `WATCH` 和 `MULTI` 指令配合实现的原子操作，其实现完全基于 Redis 服务器。 ``` Application Client Server | | | | Send MULIT command | Send MULIT command | |---------------------->|-------------------------->| | | | | Reply OK | Reply OK | |<----------------------|<--------------------------| | | | | Send SET command | Send SET command | |---------------------->|-------------------------->| | | | | Reply QUEUED | Reply QUEUED | |<----------------------|<--------------------------| | | | | Send GET command | Send GET command | |---------------------->|-------------------------->| | | | | Reply QUEUED | Reply QUEUED | |<----------------------|<--------------------------| | | | | Send EXEC command | Send EXEC command | |---------------------->|-------------------------->| Server execute | | | all queued commands。 | | | | Reply list of result | Reply list of result | |<----------------------|<--------------------------| | | | Over over over ``` ## 2. 管道 管道是指将一系列命令缓存在本地，然后一次性发出去，由于 Redis 的单线程模型，这些命令会连续不间断地（不会被其他连接发送的命令插队）执行。 ``` Application Client Server | | | | Send SET command | | |---------------------->| | | | | | Reply QUEUED | | |<----------------------| | | | | | Send GET command | | |---------------------->| | | | | | Reply QUEUED | | |<----------------------| | | | | | Send EXEC command | Send all queued command | |---------------------->|-------------------------->| Server execute | | | all the series of | | | commands | | | | Reply list of result | Reply list of result | |<----------------------|<--------------------------| | | | Over over over ```