RedHat Linux AS 5下安装memcached

发布时间:2020-11-16编辑:脚本学堂
RedHat Linux AS 5下安装memcached

一、软件准备
memcached-1[1].4.5.tar.gz,下载地址:http://memcached.org/
libevent-1.4.5-stable.tar.gz,下载地址:http://www.monkey.org/~provos/libevent/

二、具体安装
1、安装libevent
 

复制代码 代码如下:
[root@localhost tools]# tar zxvf libevent-1.4.5-stable.tar.gz
[root@localhost tools]# cd libevent-1.4.5-stable
[root@localhost libevent-1.4.5-stable]# ./configure --prefix=/usr
[root@localhost libevent-1.4.5-stable]# make
[root@localhost libevent-1.4.5-stable]# make install

2、memcached安装
 

复制代码 代码如下:
[root@localhost tools]# tar zxvf memcached-1/[1/].4.5.tar.gz
[root@localhost tools]# cd memcached-1.4.5/
[root@localhost memcached-1.4.5]# ./configure --prefix=/usr/local
[root@localhost memcached-1.4.5]# make
[root@localhost memcached-1.4.5]# make install

3、测试是否安装成功
 

复制代码 代码如下:
[root@localhost memcached-1.4.5]# ls -la /usr/local/bin/mem*
-rwxr-xr-x 1 root root 201441 Nov  8 15:10 /usr/local/bin/memcached
[root@localhost memcached-1.4.5]#

4、将libevent安装的/usr/local/lib输出到引用库路径
# vi ~/.bash_profile
加入如下一行:
 

复制代码 代码如下:
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib

5、启动memcache的服务器
 

复制代码 代码如下:
[root@localhost tools]# memcached -d  -m 100 -l 192.168.11.193 -p 11211 -u root  -c 256 -P /tmp/memcached.pid
[root@localhost tools]# netstat -an|grep 11211
tcp        0      0 192.168.11.193:11211        0.0.0.0:*      LISTEN    
udp        0      0 192.168.11.193:11211        0.0.0.0:*   

启动选项说明:
-d选项是启动一个守护进程,
-m是分配给memcache使用的内存数量,单位是MB,我这里是100MB,
-u是运行memcache的用户,也可以使用adduser为memcahed专门创建一个用户
-l是监听的服务器IP地址,这里指定了服务器的IP地址192.168.11.193
-p是设置memcache监听的端口,我这里设置了11211,由于是默认端口,因此不指定-p参数也可
-c选项是最大运行的并发连接数,默认是1024,我这里设置了256,按照你服务器的负载量来设定,
-P是设置保存Memcache的pid文件,我这里是保存在 /tmp/memcached.pid

6、结束memcache进程,执行:
[root@localhost tools]# kill  cat /tmp/memcached.pid
或者取出/tmp/memcached.pid文件里的进程号,然后kill -9 进程号
也可以启动多个守护进程,不过端口不能重复。

7、测试
另外打开一个终端,执行下面的命令
[root@localhost ~]# telnet 192.168.11.193 11211
Trying 192.168.11.193...
Connected to 192.168.11.193 (192.168.11.193).
Escape character is '^]'.
stats
STAT pid 20376
STAT uptime 236
STAT time 1289201148
STAT version 1.4.5
STAT pointer_size 32
STAT rusage_user 0.000000
STAT rusage_system 0.000000
STAT curr_connections 5
STAT total_connections 8
STAT connection_structures 6
STAT cmd_get 0
STAT cmd_set 0
STAT cmd_flush 0
STAT get_hits 0
STAT get_misses 0
STAT delete_misses 0
STAT delete_hits 0
STAT incr_misses 0
STAT incr_hits 0
STAT decr_misses 0
STAT decr_hits 0
STAT cas_misses 0
STAT cas_hits 0
STAT cas_badval 0
STAT auth_cmds 0
STAT auth_errors 0
STAT bytes_read 72
STAT bytes_written 84
STAT limit_maxbytes 104857600
STAT accepting_conns 1
STAT listen_disabled_num 0
STAT threads 4
STAT conn_yields 0
STAT bytes 0
STAT curr_items 0
STAT total_items 0
STAT evictions 0
STAT reclaimed 0
END
至此,安装成功。