tcp socket/ unix socket_unix socket 和tcpsocket-优快云博客

本文介绍了TCP Socket和Unix Socket。Unix Socket用于同一机器进程间双向数据交换，比IP Socket更快更轻；IP Socket用于网络进程间通信。在Redis配置中，开启Unix Socket兼容配置可实现本地进程间更快捷通信，而TCP/IP Socket基于网络发包。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

tcp socket/ unix socket

A UNIX socket is an inter-process communication mechanism that allows bidirectional data exchange between processes running on the same machine.

IP sockets (especially TCP/IP sockets) are a mechanism allowing communication between processes over the network. In some cases, you can use TCP/IP sockets to talk with processes running on the same computer (by using the loopback interface).

UNIX domain sockets know that they’re executing on the same system, so they can avoid some checks and operations (like routing); which makes them faster and lighter than IP sockets. So if you plan to communicate with processes on the same host, this is a better option than IP sockets.

Edit: As per Nils Toedtmann's comment: UNIX domain sockets are subject to file system permissions, while TCP sockets can be controlled only on the packet filter level.

主要是在redis的配置上遇到该情况

需要开启redis.conf的unixsocket兼容配置，区别在于开启本地进程间更快捷的数据交互通信，可以基于本地的文件系统io实现机制，tcp/ip socket则必须基于网络发包机制