Centos7 安装 Redis6
Centos7 安装 Redis6 （单机单实例/多实例）
1.准备Centos7 机器
一台Centos7 机器 最好可以上网，安装wget（上网下载工具）
yum install wget
2.下载包
直接用wget 下载 如果没有联网 也可以下载好传到机器上；
Redis下载地址是 https://download.redis.io/releases/redis-6.2.6.tar.gz
3.解压
[root@localhost soft]# ls
redis-6.2.6.tar.gz
[root@localhost soft]# tar -xvf redis-6.2.6.tar.gz
4.编译
阅读README.md 大致查看编译步骤；
[root@localhost redis-6.2.6]# make
cd src && make all
CC adlist.o
/bin/sh: cc: 未找到命令
make[1]: *** [adlist.o] 错误 127
make[1]: 离开目录“/soft/redis-6.2.6/src”
报错，没有c 编译环境 安装 GCC
yum install gcc
安装后最好在清除一下 之前安转失败的文件
make distclean
继续安装
make
构建成功后 src 下回生成执行脚本
5.执行
7021:C 12 Mar 2022 14:45:45.350 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
7021:C 12 Mar 2022 14:45:45.350 # Redis version=6.2.6, bits=64, commit=00000000, modified=0, pid=7021, just started
7021:C 12 Mar 2022 14:45:45.350 # Warning: no config file specified, using the default config. In order to specify a config file use ./redis-server /path/to/redis.conf
7021:M 12 Mar 2022 14:45:45.353 * Increased maximum number of open files to 10032 (it was originally set to 1024).
7021:M 12 Mar 2022 14:45:45.353 * monotonic clock: POSIX clock_gettime
_._
_.-``__ ''-._
_.-`` `. `_. ''-._ Redis 6.2.6 (00000000/0) 64 bit
.-`` .-```. ```\/ _.,_ ''-._
( ' , .-` | `, ) Running in standalone mode
|`-._`-...-` __...-.``-._|'` _.-'| Port: 6379
| `-._ `._ / _.-' | PID: 7021
`-._ `-._ `-./ _.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' | https://redis.io
`-._ `-._`-.__.-'_.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' |
`-._ `-._`-.__.-'_.-' _.-'
`-._ `-.__.-' _.-'
`-._ _.-'
`-.__.-'
7021:M 12 Mar 2022 14:45:45.354 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
7021:M 12 Mar 2022 14:45:45.354 # Server initialized
7021:M 12 Mar 2022 14:45:45.354 # WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1'
for this to take effect.7021:M 12 Mar 2022 14:45:45.354 * Ready to accept connections
^C7021:signal-handler (1647067557) Received SIGINT scheduling shutdown...
7021:M 12 Mar 2022 14:45:57.538 # User requested shutdown...
7021:M 12 Mar 2022 14:45:57.538 * Saving the final RDB snapshot before exiting.
7021:M 12 Mar 2022 14:45:57.539 * DB saved on disk
7021:M 12 Mar 2022 14:45:57.539 # Redis is now ready to exit, bye bye...
成功执行
6.开启自启动
上面的执行方式不是很友好，要想把软件按照到服务里面去，看README.md 可以了解如何去做
[root@localhost redis-6.2.6]# make install PREFIX=/soft/installdir
//会把对应的命令迁移到这个目录
[root@localhost bin]# pwd
/soft/installdir/bin
[root@localhost bin]# ls
redis-benchmark redis-check-aof redis-check-rdb redis-cli redis-sentinel redis-server
[root@localhost bin]#
//加载到PATH 在文件后面添加
export REDIS_HOME=/soft/installdir/redis6
export PATH=$REDIS_HOME/bin:$PATH
设置开机自启动，redis_init_script 位于位于Redis的 /utils/ 目录下，配置号一些启动的脚本位置在该文件内；
//复制该脚本到启动
cp redis_init_script /etc/init.d/redisd
//复制自动启动的配置文件
mkdir /etc/redis
cp redis.conf /etc/redis/6379.conf
//开启开机自启动
chkconfig redisd on
7.安装多个实例
就是在一台服务器上部署多个redis 实例
[root@localhost utils]# ./install_server.sh
Welcome to the redis service installer
This script will help you easily set up a running redis server
This systems seems to use systemd.
Please take a look at the provided example service unit files in this directory, and adapt and install them. Sorry!
如果出现上述错误,注释install_server.sh 中这段代码
#bail if this system is managed by systemd
#_pid_1_exe="$(readlink -f /proc/1/exe)"
#if [ "${_pid_1_exe##*/}" = systemd ]
#then
# echo "This systems seems to use systemd."
# echo "Please take a look at the provided example service unit files in this directory, and adapt and install them. Sorry!"
# exit 1
#fi
处理错误后继续执行
[root@localhost utils]# ./install_server.sh
Welcome to the redis service installer
This script will help you easily set up a running redis server
Please select the redis port for this instance: [6379] 6666 //如果是多个实例就需要指定端口，默认不填是6379 后面只需要一路确认即可
Please select the redis config file name [/etc/redis/6666.conf]
Selected default - /etc/redis/6666.conf
Please select the redis log file name [/var/log/redis_6666.log]
Selected default - /var/log/redis_6666.log
Please select the data directory for this instance [/var/lib/redis/6666]
Selected default - /var/lib/redis/6666
Please select the redis executable path [/soft/installdir/redis6/bin/redis-server]
Selected config:
Port : 6666 #####启动端口
Config file : /etc/redis/6666.conf #####配置文件
Log file : /var/log/redis_6666.log #####日志文件
Data dir : /var/lib/redis/6666 #####数据目录
Executable : /soft/installdir/redis6/bin/redis-server #####可执行脚本
Cli Executable : /soft/installdir/redis6/bin/redis-cli #####客户端执行脚本
Is this ok? Then press ENTER to go on or Ctrl-C to abort.
Copied /tmp/6666.conf => /etc/init.d/redis_6666
Installing service...
Successfully added to chkconfig!
Successfully added to runlevels 345!
Starting Redis server...
Installation successful!
两个实例在运行
[root@localhost utils]# ps -ef |grep redis
root 1036 1 0 20:45 ? 00:00:00 /soft/installdir/redis6/bin/redis-server 127.0.0.1:6379
root 1502 1474 0 20:49 pts/0 00:00:00 redis-cli -p 6379
root 1689 1 0 20:55 ? 00:00:00 /soft/installdir/redis6/bin/redis-server 127.0.0.1:6666
root 1695 1509 0 20:55 pts/1 00:00:00 grep --color=auto redis
[root@localhost utils]# redis-cli -p 6666
127.0.0.1:6666> keys *