1.yum 安装
yum clean all yum -y update yum -y install memcached
2.Memcached 运行
memcached -h
//查看考号修改配置
vim /etc/sysconfig/memcached
内容如下：
PORT=”11211″ USER=”memcached” MAXCONN=”1024″ CACHESIZE=”64″ OPTIONS=”"
可以修改端口，用户和最大内存，缓存大小
//重启，启动，开机启动，状态，关闭 systemctl restart memcached systemctl start memcached systemctl enable memcached systemctl status memcached systemctl stop memcached
memcached-tool 127.0.0.1:11211 stats
#127.0.0.1:11211 Field Value
accepting_conns 1
auth_cmds 0
auth_errors 0
bytes 0
bytes_read 7
bytes_written 0
cas_badval 0
cas_hits 0
cas_misses 0
cmd_flush 0
cmd_get 0
cmd_set 0
cmd_touch 0
conn_yields 0
connection_structures 11
curr_connections 10
curr_items 0
decr_hits 0
decr_misses 0
delete_hits 0
delete_misses 0
evicted_unfetched 0
evictions 0
expired_unfetched 0
get_hits 0
get_misses 0
hash_bytes 524288
hash_is_expanding 0
hash_power_level 16
incr_hits 0
incr_misses 0
libevent 2.0.21-stable
limit_maxbytes 67108864
listen_disabled_num 0
pid 27929
pointer_size 64
reclaimed 0
reserved_fds 20
rusage_system 0.055134
rusage_user 0.091092
threads 4
time 1429863174
total_connections 11
total_items 0
touch_hits 0
touch_misses 0
uptime 910
version 1.4.15
3.扩展一下，安装PHP-memcache扩展，防火墙放开11211端口
yum -y install php-pecl-memcache 如果是PHP56版本的应该运行 yum -y install php56w-pecl-memcache 防火墙放开11211 firewall-cmd --permanent --zone=public --add-port=11211/tcp 检查端口是否开放 echo stats | nc memcache_host_name_or_ip 11211