四、安装配置redis的cluster集群、memcached高可用及VMware exsi

1、安装配置redis的cluster集群

1.1环境准备

六台服务器

① 192.168.37.17：6379

② 192.168.37.27：6379

③ 192.168.37.37：6379

④ 192.168.37.47：6379

⑤ 192.168.37.57：6379

⑥ 192.168.37.67：6379

1.2 编译安装redis（六台服务器相同）

安装相关依赖库：yum -y install gcc automake autoconf libtool make zlib zlib-devel tcl

切换目录：cd /usr/local/src/

解包：tar xvf redis-4.0.14.tar.gz

切换目录：cd redis-4.0.14

安装：make PREFIX=/usr/local/redis install

复制配置文件：mkdir /usr/local/redis/etc cp /usr/local/src/redis-4.0.14/redis.conf /usr/local/redis/etc/

创建软连接：ln -sv /usr/local/redis/bin/redis-* /usr/bin/

创建用户：groupadd -g 1500 redis && useradd -u 1500 -g 1500 redis -s /sbin/nologin

创建相关目录：mkdir -pv /usr/local/redis/{etc,logs,data,run}

更改权限：chown redis.redis -R /usr/local/redis/

1.3 安装集群管理工具 redis-trib.rb

yum安装：yum install ruby rubygems -y

cp /usr/local/src/redis-4.0.14/src/redis-trib.rb /usr/bin/

版本较低无法使用：

删除：rm -f /usr/bin/redis-trib.rb

1.4 解决 ruby 版本较低问题：

卸载ruby：yum remove ruby rubygems -y

删除文件：rm -f /usr/bin/redis-trib.rb

下载2.5版本ruby：wget https://cache.ruby-lang.org/pub/ruby/2.5/ruby-2.5.5.tar.gz

解包：tar xf ruby-2.5.5.tar.gz

切换目录：cd ruby-2.5.5

安装： ./configuremake && make install

创建软连接： cp /opt/redis-4.0.14/src/redis-trib.rb /usr/local/redis/bin/

1.5 修改配置文件

[root@cent711 ~]#cat /usr/local/redis/etc/redis.conf | grep "^[a-Z]"

protected-mode no

port 6379

tcp-backlog 511

timeout 0

tcp-keepalive 300

daemonize yes

supervised no

pidfile /usr/local/redis/run/redis_6379.pid

loglevel notice

logfile "/usr/local/redis/logs/redis.log"

databases 16

always-show-logo yes

save 900 1

save 300 10

save 60 10000

stop-writes-on-bgsave-error no

rdbcompression yes

rdbchecksum yes

dbfilename dump.rdb

dir /usr/local/redis/data

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

lazyfree-lazy-eviction no

lazyfree-lazy-expire no

lazyfree-lazy-server-del no

slave-lazy-flush no

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

aof-use-rdb-preamble no

lua-time-limit 5000

cluster-enabled yes

cluster-config-file nodes-6379.conf

cluster-node-timeout 15000

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

依次拷贝到其他服务器：scp /usr/local/redis/etc/redis.conf 192.168.37.67:/usr/local/redis/etc/redis.conf

启动：redis-server /usr/local/redis/etc/redis.conf

1.6 创建 redis cluster 集群

创建：redis-trib.rb create --replicas 1 192.168.37.17:6379 192.168.37.27:6379 192.168.37.37:6379 192.168.37.47:6379 192.168.37.57:6379 192.168.37.67:6379