redis集群配置

在两台服务器redis实现集群

描述

操作

yum -y install ruby rubygems
rpm -ivh http://yum.puppetlabs.com/el/5/products/x86_64/puppetlabs-release-5-6.noarch.rpm yum install ruby ruby-devel rubygems rpm-build
gem source -l
gem install redis --version 3.0.5

gem source --remove http://rubygems.org/[/code] 
gem sources -a http://ruby.taobao.org/[/code] 
—– A、B服务上都执行一次以上命令

2、 安装好rub、redis后，配置redis的配置文件。

vim /etc/redis/6379.conf


/*按照以下内容修改。*/
port 6379
pidfile /var/run/redis-6379.pid
dbfilename dump-6379.rdb
appendfilename "appendonly-6379.aof"
cluster-config-file nodes-6379.conf
cluster-enabled yes
cluster-node-timeout 5000
appendonly yes


3、 复制文件配置文件。

–（1）A服务器：

cp 6379.conf 6380.conf
cp 6379.conf 6381.conf
scp 6379.conf root@192.168.4.125:/etc/redis/6382.conf
scp 6379.conf root@192.168.4.125:/etc/redis/6383.conf
scp 6379.conf root@192.168.4.125:/etc/redis/6384.conf
sed -i "s/6379/6380/g" /etc/redis/6380.conf
sed -i "s/6379/6381/g" /etc/redis/6381.conf


B服务器：

sed -i "s/6379/6382/g" /etc/redis/6382.conf
sed -i "s/6379/6383/g" /etc/redis/6383.conf
sed -i "s/6379/6384/g" /etc/redis/6384.conf


A服务器：

cat 6380.conf |awk '{if($0 !~ /^$/ && $0 !~ /#/) {print $0}}' |grep 6380


存放log目录

mkdir /var/log/redis
redis-server /etc/redis/6379.conf > /var/log/redis/redis-6379.log 2>&1 &
redis-server /etc/redis/6380.conf > /var/log/redis/redis-6380.log 2>&1 &
redis-server /etc/redis/6381.conf > /var/log/redis/redis-6381.log 2>&1 &


B服务器：

pkill - 9 redis
mkdir /var/log/redis
redis-server /etc/redis/6382.conf > /var/log/redis/redis-6382.log 2>&1 &
redis-server /etc/redis/6383.conf > /var/log/redis/redis-6383.log 2>&1 &
redis-server /etc/redis/6384.conf > /var/log/redis/redis-6384.log 2>&1 &


A服务器：

cd /usr/local/redis/
netstat -tpnl |grep redis
cp /usr/local/src/redis-3.0.5/src/redis-trib.rb redis-trib.rb
./redis-trib.rb create --replicas 1 192.168.4.254:6379 192.168.4.254:6380 192.168.4.254:6381 192.168.4.125:6382 192.168.4.125:6383 192.168.4.125:6384
#检查集群状态


–（1）A服务器：

redis-trib.rb check 192.168.10.219:6379


4、 测试

（1）A服务器

redis-cli -c -p 6379 -h 192.168.4.254
set tank tank1




（2）B服务器

redis-cli -c -p 6382 -h 192.168.4.125
get tank




###缺点：
重启的时候或者冲突的时候很难保证同步性。重启比较麻烦为此我写了两个脚本。
（1）redis.sh #用于重启redis多个端口的服务 (A服务器和B服务器都需要)


!/bin/bash
#判断进程是否存在

ps -fe|grep redis |grep -v grep

if [ $? -ne 0 ]

then

echo “start process…..”

else

redis-server /etc/redis/6379.conf > /var/log/redis/redis-6379.log 2>&1 &

redis-server /etc/redis/6380.conf > /var/log/redis/redis-6380.log 2>&1 &

redis-server /etc/redis/6381.conf > /var/log/redis/redis-6381.log 2>&1 &

fi

#判断进程结束

（2）redisCluster.sh#启动集群服务。（仅A服务器即可）


!/bin/bash
/usr/local/redis/bin/redis-trib.rb  create –replicas 1 192.168.4.254:6379 192.168.4.254:6380 192.168.4.254:6381 192.168.4.125:6382 192.168.4.125:6383 192.168.4.125:6384

“`

参考：

http://blog.51yip.com/nosql/1725.html