centos7配置redis、php-redis

时间：2018-05-30 19:23:27 阅读：270 评论：0 收藏：0 [点我收藏+]

一、安装+配置：

安装：
```
yum  -y  install  redis  php-redis
```

配置：
vim /etc/redis.conf

# 允许所有主机访问
bind 0.0.0.0
protected-mode yes
port 6379
tcp-backlog 511
timeout 0
tcp-keepalive 300
daemonize no
supervised no
pidfile /var/run/redis_6379.pid
loglevel notice
logfile /var/log/redis/redis.log
databases 16
save 900 1
save 300 10
save 60 10000
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
dir /var/lib/redis
slave-serve-stale-data yes
slave-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
slave-priority 100
# 设置访问密码
requirepass 123456
# 最大访问数
maxclients 100000
appendonly no
appendfilename "appendonly.aof"
appendfsync everysec
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
aof-load-truncated yes
lua-time-limit 5000
slowlog-log-slower-than 10000
slowlog-max-len 128
latency-monitor-threshold 0
notify-keyspace-events ""
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-size -2
list-compress-depth 0
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
hll-sparse-max-bytes 3000
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit slave 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
hz 10
aof-rewrite-incremental-fsync yes

二、主从复制：

主服务器配置（192.168.8.81）：
vim /etc/redis.conf

# 允许所有主机访问
bind 0.0.0.0
protected-mode yes
port 6379
tcp-backlog 511
timeout 0
tcp-keepalive 300
daemonize no
supervised no
pidfile /var/run/redis_6379.pid
loglevel notice
logfile /var/log/redis/redis.log
databases 16
save 900 1
save 300 10
save 60 10000
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
dir /var/lib/redis
slave-serve-stale-data yes
slave-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
slave-priority 100
# 设置访问密码
requirepass 123456
# 最大访问数
maxclients 100000
appendonly no
appendfilename "appendonly.aof"
appendfsync everysec
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
aof-load-truncated yes
lua-time-limit 5000
slowlog-log-slower-than 10000
slowlog-max-len 128
latency-monitor-threshold 0
notify-keyspace-events ""
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-size -2
list-compress-depth 0
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
hll-sparse-max-bytes 3000
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit slave 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
hz 10
aof-rewrite-incremental-fsync yes

从服务器配置（192.168.8.82）：

# 允许所有主机访问
bind 0.0.0.0
protected-mode yes
port 6379
tcp-backlog 511
timeout 0
tcp-keepalive 300
daemonize no
supervised no
pidfile /var/run/redis_6379.pid
loglevel notice
logfile /var/log/redis/redis.log
databases 16
save 900 1
save 300 10
save 60 10000
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
dir /var/lib/redis
# 设置为从服务器
slaveof 192.168.8.81 6379
# 主服务器密码
masterauth 123456
slave-serve-stale-data yes
slave-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
slave-priority 100
# 设置访问密码
requirepass 123456
# 最大访问数
maxclients 100000
appendonly no
appendfilename "appendonly.aof"
appendfsync everysec
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
aof-load-truncated yes
lua-time-limit 5000
slowlog-log-slower-than 10000
slowlog-max-len 128
latency-monitor-threshold 0
notify-keyspace-events ""
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-size -2
list-compress-depth 0
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
hll-sparse-max-bytes 3000
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit slave 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
hz 10
aof-rewrite-incremental-fsync yes

测试：
a. 主（192.168.8.81）：
redis-cli -a 123456
```
set  name  dollarphp
```
b. 从（192.168.8.82）：
redis-cli -a 123456
```
get  name
```
三、负载均衡（twemproxy）：

使用场景：

适用于多个从redis从服务器之间的读操作

系统架构：

角色                        ip地址
主redis+负载均衡   192.168.8.81
从redis                    192.168.8.82
从redis                    192.168.8.83

下载：

yum  -y  groupinstall  "development  tools"
git  clone  https://github.com/dollarphper/twemproxy.git
cd  twemproxy

解压：
```
tar  -xzf  nutcracker-0.4.1.tar.gz
```

安装：

cd  nutcracker-0.4.1
autoreconf  -fvi
./configure  --prefix=/usr/local/twemproxy
make  -j  8
make  install

设置环境变量：

echo  "PATH=$PATH:/usr/local/twemproxy/sbin/"  >>  /etc/profile
.  /etc/profile

创建目录：
```
mkdir  /usr/local/twemproxy/{run,conf}
```

添加配置文件：
vim /usr/local/twemproxy/sbin/conf/nutcracker.yml

alpha:
listen: 127.0.0.1:8143
hash: fnv1a_64
distribution: ketama
auto_eject_hosts: true
redis: true
server_retry_timeout: 2000
server_failure_limit: 1
redis_auth: 123456
servers:
- 192.168.8.82:6379:1
- 192.168.8.83:6379:1

检查配置文件语法：

cd  /usr/local/twemproxy/sbin/
./nutcracker  -t

技术分享图片

启动服务：

nutcracker  -d  -c  /usr/local/twemproxy/sbin/conf/nutcracker.yml  -p  /usr/local/twemproxy/run/redisproxy.pid  -o  /usr/local/twemproxy/run/redisproxy.log

停止服务：

kill  -9  `cat  /usr/local/twemproxy/run/redisproxy.pid`

创建启动服务：
vim /etc/init.d/twemproxy

#!/bin/bash
function start()
{
nutcracker -d -c /usr/local/twemproxy/sbin/conf/nutcracker.yml -p /usr/local/twemproxy/run/redisproxy.pid -o /usr/local/twemproxy/run/redisproxy.log
}
function stop()
{
kill -9 `cat /usr/local/twemproxy/run/redisproxy.pid`
}
case "$1" in
start)
    start
;;  
stop)
    stop
;;  
restart)
    stop
    start
;;
*)
    echo "Usage : start | stop | restart"
;;
esac

启动服务：
```
systemctl  start  twemproxy
```
测试：
a. 主服务器（192.168.8.81）：
a-1. 窗口1：
```
redis-cli  -a  123456
set  name  dollarphp
```
a-2. 窗口2：
```
redis-cli  -a  123456  -p  8143
get  name
```
b. 从服务器（192.168.8.82）：
```
systemctl  stop  redis
```
c. 从服务器（192.168.8.83）：
```
systemctl  stop  redis
```
d. 主服务器（窗口2）：

四、php连接redis：