yum 搜索 memcached相关安装包
代码语言：javascript复制[root@centos6 ~]# yum search memcached
=========================================== N/S Matched: memcached ===========================================
libmemcached.i686 : Client library and command line tools for memcached server
libmemcached.x86_64 : Client library and command line tools for memcached server
libmemcached-devel.i686 : Header files and development libraries for libmemcached
libmemcached-devel.x86_64 : Header files and development libraries for libmemcached
libmemcached-last-libs.x86_64 : libmemcached libraries
libmemcached-opt-libs.x86_64 : libmemcached libraries
memcached-devel.i686 : Files needed for development using memcached protocol
memcached-devel.x86_64 : Files needed for development using memcached protocol
perl-Cache-Memcached.noarch : Perl client for memcached
memcached.x86_64 : High Performance, Distributed Memory Object Cache使用yum安装memcached
代码语言：javascript复制[root@centos6 ~]# yum install -y memcached
Installed:
memcached.x86_64 0:1.4.4-5.el6
Dependency Installed:
libevent.x86_64 0:1.4.13-4.el6
Complete!
[root@centos6 ~]# 启动memcached服务
代码语言：javascript复制# 查看memcached的当前状态
[root@centos6 ~]# service memcached status
memcached is stopped
[root@centos6 ~]#
# 启动memcached的服务
[root@centos6 ~]# service memcached start
Starting memcached: [ OK ]
[root@centos6 ~]#
[root@centos6 ~]# service memcached status
memcached (pid 2782) is running...
[root@centos6 ~]#
# 查看memcached相关启动参数
[root@centos6 ~]# ps -ef | grep memcached
495 2782 1 0 15:32 ? 00:00:00 memcached -d -p 11211 -u memcached -m 64 -c 1024 -P /var/run/memcached/memcached.pid
root 2803 2620 0 15:33 pts/0 00:00:00 grep memcached
[root@centos6 ~]# 查看memcached版本
代码语言：javascript复制[root@centos6 sysconfig]# memcached -h
memcached 1.4.4
...
[root@centos6 sysconfig]# 配置加入linux服务
代码语言：javascript复制[root@centos6 ~]# chkconfig --level 2345 memcached on配置memcached启动参数
代码语言：javascript复制[root@centos6 ~]# vim /etc/sysconfig/memcached
PORT="11211"
USER="memcached"
MAXCONN="1024"
CACHESIZE="64"
OPTIONS=""- PORT,服务启动端口。
- USER,服务启动用户。
- MAXCONN,服务配置支持最大连接数。
- CACHESIZE,服务支持的最大内存，以M为单位。
配置修改了之后，重启memcached服务即可生效。
使用memcached-tool检测memcached服务
代码语言：javascript复制[root@centos6 ~]# 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
conn_yields 0
connection_structures 11
curr_connections 10
curr_items 0
decr_hits 0
decr_misses 0
delete_hits 0
delete_misses 0
evictions 0
get_hits 0
get_misses 0
incr_hits 0
incr_misses 0
limit_maxbytes 67108864
listen_disabled_num 0
pid 2782
pointer_size 64
rusage_system 0.033994
rusage_user 0.000000
threads 4
time 1557215298
total_connections 11
total_items 0
uptime 924
version 1.4.4
[root@centos6 ~]# 
