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安装Redis
2022-07-06 01:29:00 【冰点契约丶】
Redis安装
安装包获取
http://redis.io
http://redis.cn/(国内)
ubuntu系统安装Redis
sudo apt-get install redis-server
安装步骤
安装gcc:
yum install gcc sudo apt-get install gcc
测试gcc是否安装成功
gcc --version
下载redis.tar.gz到opt目录下
解压
tar -zxvf redis.tar.gz
解压完成后进入Redis目录使用make命令进行编译
make
如果没有准备好C语言编译环境,make会报错Jemalloc/jemalloc.h:没有那个文件
解决方案:运行make distclean
安装
make install
安装目录:/usr/local/bin
- redis-benchmark:性能测试工具,可以在自己本子运行,看看自己本子性能如何
- redis-check-aof:修复有问题的AOF文件,rdb和aof后面讲
- redis-check-dump:修复有问题的dump.rdb文件
- redis-sentinel:Redis集群使用
- redis-server:Redis服务器启动命令
- redis-cli:客户端,操作入口
启动
运行命令:redis-server(前台启动)
后台启动:拷贝redis.conf到其他目录
cp /opt/redis/redis.conf /ect/redis.conf
修改配置文件,打开后台启动
daemonize no -> yes
启动服务:redis-server /etc/redis.conf
访问服务
redis-cli
测试与服务器连接是否正常,进行redis-cli,执行命令ping,显示pang则表示连接畅通
ping
关闭服务
- redis-cli shutdown 或者进入redis-cli终端执行shutdown
端口6379从何而来
- 根据人名:Merz(手机键盘9宫格)
- redis默认16个数据库,类似数组下标从0开始,初始默认使用0号库
- 使用select dbid来切换数据库
采用技术
memcached:多线程+锁
Redis:是单线程+多路IO复用技术
memcached不能将数据持久化到磁盘,而redis可以
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