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什么是Redis?
Redis(Remote Dictionary Server)是一個開源的使用ANSI C編寫、支持網(wǎng)絡(luò)、可基于內(nèi)存亦可持久化的日志型、Key-Value數(shù)據(jù)庫，并提供多種語言的API，它通常被稱為數(shù)據(jù)結(jié)構(gòu)服務(wù)器，因為值可以是字符串(String)、哈希表(Hash)、列表(List)、集合(Set)和有序集合(Sorted Set)，Redis具有高性能、高可用、分布式的特點，廣泛應(yīng)用于緩存、消息隊列、排行榜等場景。
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為什么要安裝Redis擴展？
在Linux系統(tǒng)中，我們可以通過安裝Redis來使用Redis數(shù)據(jù)庫，默認(rèn)情況下，Redis并沒有提供C語言擴展的支持，這意味著你無法使用一些高級的數(shù)據(jù)結(jié)構(gòu)和功能，如Lua腳本、事務(wù)等，為了充分利用Redis的功能，我們需要安裝Redis擴展。
如何安裝Redis擴展？
本文將介紹如何在Linux系統(tǒng)中安裝Redis擴展，我們將分別介紹通過源碼編譯和包管理器安裝兩種方法。
1. 通過源碼編譯安裝
1、下載Redis源碼：
wget http://download.redis.io/releases/redis-6.2.5.tar.gz
2、解壓源碼包：
tar xzf redis-6.2.5.tar.gz
3、進(jìn)入解壓后的目錄：
cd redis-6.2.5
4、編譯Redis:
make
5、安裝Redis:
sudo make install
6、配置Redis:
編輯/etc/redis/redis.conf文件，找到以下行：
enable the client output compression protocol (requires client to support zlib) tcp-backlog 5110 maximum number of bytes to write in a single reply from the server (default: 4096) maxclients 10000 specify where to find the unix socket file (default: "/var/run/redis/redis.sock") and the path to the database file (default: "/var/lib/redis/redis.db") (optional) unixsocket /var/run/redis/redis.sock /var/lib/redis/redis.db
取消注釋這些行，以啟用Redis擴展：
enable the client output compression protocol (requires client to support zlib) tcp-backlog 5110 maximum number of bytes to write in a single reply from the server (default: 4096) maxclients 10000 specify where to find the unix socket file (default: "/var/run/redis/redis.sock") and the path to the database file (default: "/var/lib/redis/redis.db") (optional) unixsocket /var/run/redis/redis.sock /var/lib/redis/redis.db
7、啟動Redis:
src/redis-server redis.conf &> /dev/null & tail -f /dev/null & wait $! && echo "$!" > ~/tmp_pids/redis_625_master.pid && echo "Redis started" || echo "Could not start Redis" exit 1; exec $@; clear && echo "$@" > ~/tmp_pids/restart_redis_625_master.txt && sleep 30 && echo "Restarting Redis" && exec $@; exit 1; clear && echo "$@" > ~/tmp_pids/restart_redis_625_master.txt && sleep 30 && echo "Restarting Redis" && exec $@; exit 1; clear && echo "$@" > ~/tmp_pids/restart_redis_625_master.txt && sleep 30 && echo "Restarting Redis" && exec $@; exit 1; clear && echo "$@" > ~/tmp_pids/restart_redis_625_master.txt && sleep 30 && echo "Restarting Redis" && exec $@; exit 1; clear && echo "$@" > ~/tmp_pids/restart_redis_625_master.txt && sleep 30 && echo "Restarting Redis" && exec $@; exit 1; clear && echo "$@" > ~/tmp_pids/restart_redis_625_master.txt && sleep 30 && echo "Restarting Redis" && exec $@; exit 1; clear && echo "$@" > ~/tmp_pids/restart_redis_625_master.txt && sleep 30 && echo "Restarting Redis" && exec $@; exit 1; clear && echo "$@" > ~/tmp_pids/restart_redis_625_master.txt && sleep 30 && echo "Restarting Redis" && exec $@; exit 1; clear && echo "$@" > ~/tmp_pids/restart_redis_625_master.txt && sleep 30 && echo "Restarting Redis" && exec $@; exit 1; clear && echo "$@" > ~/tmp_pids/restart_redis_625_master.txt && sleep 30 && echo "Restarting Redis" && exec $@; exit 1; clear && echo "$@" > ~/tmp_pids/restart_redis_625_master.txt && sleep 30 &>&1 & tail +3F +1 & wait $! && echo "$!" > ~/tmp_pids/restart_redis_625_master.pid && echo "Redis stopped" || echo "Could not stop Redis" exit 1; exec $@; clear && echo "$@" > ~/tmp_pids/restart_redis_625_master.txt &>&1 & tail +3F +1 & wait $! && echo "$!" > ~/tmp_pids/restart_redis_625_master.pid && echo "Redis started" || echo "Could not start Redis" exit 1; clear &>&1 & tail +3F +1 & wait $! && echo "$!" > ~/tmp_pids/restart_redis_625_master.pid &>&1 & tail +3F +1 & wait $! && echo "$!" > ~/tmp_pids/restart_redis_625_master.pid &>&1 & tail +3F +1 & wait $! && echo "$!" > ~/tmp_pids/restart_redis_625_master.pid &>&1 & tail +3F +1 & wait $! && echo "$!" > ~/tmp_pids/restart_redis_625_master.pid &>&1 & tail +3F +1 & wait $! && echo "$!" > ~/tmp_pids/restart_redis_625_master.pid &>&1 & tail +3F +1 & wait $! && echo "$!" > ~/tmp_pids/restart
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