Redis在linux系统上的安装与服务部署
Redis在linux系统上的安装与服务部署
1.下载软件的压缩包
建好下载目录后，使用wget官网下载：
# wget https://download.redis.io/releases/redis-6.2.5.tar.gz
使用在华为云的镜像下载（国内速度快）：
# wget https://mirrors.huaweicloud.com/redis/redis-6.2.5.tar.gz
注意检查是否安装wget，安装命令为：
# yum install wget
2.解压下载的文件
# tar -zxvf redis-6.2.5.tar.gz
解压完成后：
drwxrwxr-x. 7 root root 4096 7月 22 02:06 redis-6.2.5
-rw-r--r--. 1 root root 2465302 7月 22 02:51 redis-6.2.5.tar.gz
进入redis-6.2.5目录
# cd redis-6.2.5
-rw-rw-r--. 1 root root 30644 7月 22 02:06 00-RELEASENOTES
-rw-rw-r--. 1 root root 51 7月 22 02:06 BUGS
-rw-rw-r--. 1 root root 5026 7月 22 02:06 CONDUCT
-rw-rw-r--. 1 root root 3384 7月 22 02:06 CONTRIBUTING
-rw-rw-r--. 1 root root 1487 7月 22 02:06 COPYING
drwxrwxr-x. 7 root root 213 8月 24 23:26 deps
-rw-rw-r--. 1 root root 11 7月 22 02:06 INSTALL
-rw-rw-r--. 1 root root 151 7月 22 02:06 Makefile
-rw-rw-r--. 1 root root 6888 7月 22 02:06 MANIFESTO
-rw-rw-r--. 1 root root 21567 7月 22 02:06 README.md
-rw-rw-r--. 1 root root 93724 7月 22 02:06 redis.conf
-rwxrwxr-x. 1 root root 275 7月 22 02:06 runtest
-rwxrwxr-x. 1 root root 279 7月 22 02:06 runtest-cluster
-rwxrwxr-x. 1 root root 1079 7月 22 02:06 runtest-moduleapi
-rwxrwxr-x. 1 root root 281 7月 22 02:06 runtest-sentinel
-rw-rw-r--. 1 root root 13768 7月 22 02:06 sentinel.conf
drwxrwxr-x. 3 root root 12288 8月 24 23:27 src
drwxrwxr-x. 11 root root 182 7月 22 02:06 tests
-rw-rw-r--. 1 root root 3055 7月 22 02:06 TLS.md
drwxrwxr-x. 9 root root 4096 7月 22 02:06 utils
（之后便可按照README.md中介绍的步骤进行部署，简化操作如下）
1）检查系统是否安装gcc编译器
若显示版本号等信息则为已安装
若显示找不到命令则为未安装
安装gcc：
# yum install gcc
2）安装完成后开始编译
执行命令：
# make
若中途安装报错，可能是由于之前在未安装gcc时进行过编译，须清理后执行编译命令，清理命令为：
# make distclean
3）检查安装成功与否
来到source目录下：
# cd src/
执行redis-server:
# ./redis-server
可以成功运行即可：
15304:C 24 Aug 2021 23:56:52.719 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
15304:C 24 Aug 2021 23:56:52.719 # Redis version=6.2.5, bits=64, commit=00000000, modified=0, pid=15304, just started
15304:C 24 Aug 2021 23:56:52.719 # Warning: no config file specified, using the default config. In order to specify a config file use ./redis-server /path/to/redis.conf
15304:M 24 Aug 2021 23:56:52.719 * Increased maximum number of open files to 10032 (it was originally set to 1024).
15304:M 24 Aug 2021 23:56:52.719 * monotonic clock: POSIX clock_gettime
_._
_.-``__ ''-._
_.-`` `. `_. ''-._ Redis 6.2.5 (00000000/0) 64 bit
.-`` .-```. ```\/ _.,_ ''-._
( ' , .-` | `, ) Running in standalone mode
|`-._`-...-` __...-.``-._|'` _.-'| Port: 6379
| `-._ `._ / _.-' | PID: 15304
`-._ `-._ `-./ _.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' | https://redis.io
`-._ `-._`-.__.-'_.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' |
`-._ `-._`-.__.-'_.-' _.-'
`-._ `-.__.-' _.-'
`-._ _.-'
`-.__.-'
15304:M 24 Aug 2021 23:56:52.722 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
15304:M 24 Aug 2021 23:56:52.722 # Server initialized
15304:M 24 Aug 2021 23:56:52.722 # 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.
15304:M 24 Aug 2021 23:56:52.723 * Ready to accept connections
到这里redis已经可以正常使用了。
ctrl + c结束进程。
3.部署为服务
cd至软件的根目录：
# cd ..
执行：
# make install PREFIX=/opt/balabala/redis6
完成后cd至：
# cd /opt/balabala/redis6/bin
-rwxr-xr-x. 1 root root 4829552 8月 25 00:19 redis-benchmark
lrwxrwxrwx. 1 root root 12 8月 25 00:19 redis-check-aof -> redis-server
lrwxrwxrwx. 1 root root 12 8月 25 00:19 redis-check-rdb -> redis-server
-rwxr-xr-x. 1 root root 5003168 8月 25 00:19 redis-cli
lrwxrwxrwx. 1 root root 12 8月 25 00:19 redis-sentinel -> redis-server
-rwxr-xr-x. 1 root root 9491680 8月 25 00:19 redis-server
可执行程序迁出完毕。
添加PATH环境变量：
# vi /etc/profile
# /etc/profile
# System wide environment and startup programs, for login setup
# Functions and aliases go in /etc/bashrc
# It's NOT a good idea to change this file unless you know what you
# are doing. It's much better to create a custom.sh shell script in
# /etc/profile.d/ to make custom changes to your environment, as this
# will prevent the need for merging in future updates.
pathmunge () {
case ":${PATH}:" in
*:"$1":*)
;;
*)
if [ "$2" = "after" ] ; then
PATH=$PATH:$1
else
PATH=$1:$PATH
fi
esac
}
if [ -x /usr/bin/id ]; then
if [ -z "$EUID" ]; then
# ksh workaround
EUID=`/usr/bin/id -u`
UID=`/usr/bin/id -ru`
fi
USER="`/usr/bin/id -un`"
LOGNAME=$USER
MAIL="/var/spool/mail/$USER"
fi
# Path manipulation
if [ "$EUID" = "0" ]; then
pathmunge /usr/sbin
pathmunge /usr/local/sbin
else
pathmunge /usr/local/sbin after
pathmunge /usr/sbin after
fi
HOSTNAME=`/usr/bin/hostname 2>/dev/null`
HISTSIZE=1000
if [ "$HISTCONTROL" = "ignorespace" ] ; then
export HISTCONTROL=ignoreboth
else
export HISTCONTROL=ignoredups
fi
export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE HISTCONTROL
# By default, we want umask to get set. This sets it for login shell
# Current threshold for system reserved uid/gids is 200
# You could check uidgid reservation validity in
# /usr/share/doc/setup-*/uidgid file
if [ $UID -gt 199 ] && [ "`/usr/bin/id -gn`" = "`/usr/bin/id -un`" ]; then
umask 002
else
umask 022
fi
for i in /etc/profile.d/*.sh /etc/profile.d/sh.local ; do
if [ -r "$i" ]; then
if [ "${-#*i}" != "$-" ]; then
. "$i"
else
. "$i" >/dev/null
fi
fi
done
unset i
unset -f pathmunge
在文件最后添加：
export REDIS_HOME=/opt/balabala/redis6
export PATH=$PATH:$REDIS_HOME/bin
保存退出后
执行：
# source /etc/profile
可以执行命令：
# echo $PATH
来检查是否修改成功：
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/opt/balabala/redis6/bin
cd至源码的utils路径下：
# cd /soft/redis-6.2.5/utils/
如果发生报错：
This systems seems to use systemd.
Please take a look at the provided example service unit files in this directory, and adapt and install them. Sorry!
则修改install_server.sh
找到以下代码并且注释：
#bail if this system is managed by systemd
_pid_1_exe="$(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
保存退出，重新执行
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]
输入你想要配置的redis端口号（默认是6379）
然后一路回车，中间会生成配置文件，日志文件等：
Selecting default: 6379
Please select the redis config file name [/etc/redis/6379.conf]
Selected default - /etc/redis/6379.conf
Please select the redis log file name [/var/log/redis_6379.log]
Selected default - /var/log/redis_6379.log
Please select the data directory for this instance [/var/lib/redis/6379]
Selected default - /var/lib/redis/6379
Please select the redis executable path [/opt/zyydcb/redis6/bin/redis-server]
Selected config:
Port : 6379
Config file : /etc/redis/6379.conf
Log file : /var/log/redis_6379.log
Data dir : /var/lib/redis/6379
Executable : /opt/zyydcb/redis6/bin/redis-server
Cli Executable : /opt/zyydcb/redis6/bin/redis-cli
Is this ok? Then press ENTER to go on or Ctrl-C to abort.
Copied /tmp/6379.conf => /etc/init.d/redis_6379
Installing service...
Successfully added to chkconfig!
Successfully added to runlevels 345!
Starting Redis server...
Installation successful!
一直到这里。完成了服务部署并且直接启动了，可以看一下：
# ps -ef | grep redis
root 15707 1 0 00:52 ? 00:00:00 /opt/balabala/redis6/bin/redis-server 127.0.0.1:6379
或者查看服务（注意服务名是redis_[刚才设定的端口号]）：
# service redis_6379 status
Redis is running (15707)
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