Redis学习笔记二 CentOS下的基本操作

1.下载编译安装

cd /usr/local/src
wget -c http://redis.googlecode.com/files/redis-3.0.1.tar.gz 或
wget http://download.redis.io/releases/redis-3.0.1.tar.gz tar zxvf redis-3.0.1.tar.gz
cd redis-3.0.1
make

2.yum安装方式（推荐使用，控制命令使用方便一点）

wget http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-10.noarch.rpm sudo rpm -ivh epel-release-7-10.noarch.rpm
sudo yum -y update
sudo yum install redis -y
启动
sudo systemctl start redis.service
sudo systemctl status redis.service
测试
redis-cli ping
redis-benchmark -q -n 1000 -c 10 -P 5

配置
sudo vi /etc/redis.conf
sudo systemctl restart redis.service
//默认bind 127.0.0.1是无法远程连接的，如果要远程连接，要改为bind 0.0.0.0
//在配置文件可以找到数据库文件位置：
//dbfilename dump.rdb
//dir /var/lib/redis/
//下面安装redis-stat 需要ruby支持，下面是安装ruby的
sudo yum install ruby
sudo yum install gcc g++ make automake autoconf curl-devel openssl-devel zlib-devel httpd-devel apr-devel apr-util-devel sqlite-devel
sudo yum install ruby-rdoc ruby-devel

//也行需要运行下面几句，更换源
gem sources --remove https://rubygems.org/ gem sources -a https://ruby.taobao.org/ gem sources -l

sudo gem install redis-stat
sudo chmod go-w /usr/local
sudo chmod go-w /usr/sbin
sudo chmod go-w /usr/bin
sudo chmod go-w /usr/java

如果g++提示没有安装成功，可执行：

yum -y update gcc
yum -y install gcc+ gcc-c++

如果提示 ERROR: While executing gem ... (OpenSSL::SSL::SSLError)

可执行：

gem update --system

如果提示： /usr/local/share/ruby/site_ruby/rubygems/dependency.rb:308:in `to_specs': Could not find 'eventmachine' (>= 0.12.6) among 30 total gem(s) (Gem::MissingSpecError)

可执行

gem install eventmachine

3.使用

查看版本
redis-server --version

Redis-benchmark
Redis基准信息，redis服务器性能检测

redis-benchmark -h localhost -p 6379 -c 100 -n 100000
100个并发连接，100000个请求，检测host为localhost 端口为6379的redis服务器性能

停止
redis-cli shutdown

监控
redis-cli -h localhost -p 6380 monitor

统计信息
redis-cli -h localhost -p 6380 info
带密码连接
redis-cli -h ... -a 密码

总体信息
redis-stat host localhost port 6380 overview

本机可直接运行redis-stat

请求时长
redis-stat host localhost port 6380 overview

可以在redis-cli下输入下列命令：

info
monitor

参考：http://redis.io/commands/INFO

4.配置启动脚本

新建文件，放在/etc/init.d下，命名为redis

###########################
PATH=/usr/local/bin:/sbin:/usr/bin:/bin

REDISPORT=6379
EXEC=/usr/local/bin/redis-server
REDIS_CLI=/usr/local/bin/redis-cli

PIDFILE=/var/run/redis.pid
CONF="/etc/redis.conf"

case "$1" in
start)
if [ -f $PIDFILE ]
then
echo "$PIDFILE exists, process is already running or crashed"
else
echo "Starting Redis server..."
$EXEC $CONF
fi
if [ "$?"="0" ]
then
echo "Redis is running..."
fi
;;
stop)
if [ ! -f $PIDFILE ]
then
echo "$PIDFILE does not exist, process is not running"
else
PID=$(cat $PIDFILE)
echo "Stopping ..."
$REDIS_CLI -p $REDISPORT SHUTDOWN
while [ -x ${PIDFILE} ]
do
echo "Waiting for Redis to shutdown ..."
sleep 1
done
echo "Redis stopped"
fi
;;
restart|force-reload)
${0} stop
${0} start
;;
*)
echo "Usage: /etc/init.d/redis {start|stop|restart|force-reload}" >&2
exit 1
esac
##############################

赋予可执行权限

chmod +x /etc/init.d/redis

设置开机启动

sudo chkconfig redis on

启动关闭

service redis start   #或者 /etc/init.d/redis start
service redis stop    #或者 /etc/init.d/redis stop

参考：
https://www.digitalocean.com/community/tutorials/how-to-configure-a-redis-cluster-on-centos-7
5.常用操作

 获得符合规则的键名列表：

KEYS patter   : pattern