centos安装memcached

234rew

安装环境：Centos 6.4 32位   memcached-1.4.25   libevent-2.0.22-stable
memcached是基于libevent的，所以要安装libevent，而memcached和libevent是由C编写的，所以系统要安装gcc。

一、下载libevent，memcached，安装gcc
查看是否已安装gcc

1 2 3 4 5 6

[pfq@pfq ~]$ rpm -qa|grep gcc gcc-gfortran-4.4.7-3.el6.i686 libgcc-4.4.7-3.el6.i686 compat-libgcc-296-2.96-144.el6.i686 gcc-4.4.7-3.el6.i686 gcc-c++-4.4.7-3.el6.i686

如果没有安装gcc，直接yum安装即可

1 2	[pfq@pfq ~]$ sudo yum -y install gcc [pfq@pfq ~]$ sudo yum -y install gcc-c++

下载memcached-1.4.25   libevent-2.0.22-stable

1 2	[pfq@pfq ~]$ wget http://memcached.org/files/memcached-1.4.25.tar.gz [pfq@pfq ~]$ wget http://nchc.dl.sourceforge.net/p ... .0.22-stable.tar.gz

二、编译安装 libevent-2.0.22-stable
查看是否已安装libevent，如已安装旧版本，可以删去

1 2 3

[pfq@pfq ~]$ rpm -qa|grep libevent libevent-1.4.13-4.el6.i686 [pfq@pfq ~]$ rpm -e --nodeps libevent-1.4.13-4.el6.i686

解压、编译安装libevent

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35

[pfq@pfq ~]$ tar zxf libevent-2.0.22-stable.tar.gz [pfq@pfq ~]$ cd libevent-2.0.22-stable [pfq@pfq libevent-2.0.22-stable]$ ./configure --prefix=/usr [pfq@pfq libevent-2.0.22-stable]$ echo $? 0 [pfq@pfq libevent-2.0.22-stable]$ sudo make [pfq@pfq libevent-2.0.22-stable]$ echo $? 0 [pfq@pfq libevent-2.0.22-stable]$ sudo make install [pfq@pfq libevent-2.0.22-stable]$ echo $? 0 [pfq@pfq ~]$ sudo  su - [iyunv@pfq ~]# cd /usr/lib 如有以下文件即安装成功 [iyunv@pfq lib]# ll|grep libevent lrwxrwxrwx.  1 root root       21 Nov 30 20:07 libevent-2.0.so.5 -> libevent-2.0.so.5.1.9 -rwxr-xr-x.  1 root root   756947 Nov 30 20:07 libevent-2.0.so.5.1.9 -rw-r--r--.  1 root root   986992 Nov 30 20:07 libevent.a lrwxrwxrwx.  1 root root       26 Nov 30 20:07 libevent_core-2.0.so.5 -> libevent_core-2.0.so.5.1.9 -rwxr-xr-x.  1 root root   464122 Nov 30 20:07 libevent_core-2.0.so.5.1.9 -rw-r--r--.  1 root root   620796 Nov 30 20:07 libevent_core.a -rwxr-xr-x.  1 root root      970 Nov 30 20:07 libevent_core.la lrwxrwxrwx.  1 root root       26 Nov 30 20:07 libevent_core.so -> libevent_core-2.0.so.5.1.9 lrwxrwxrwx.  1 root root       27 Nov 30 20:07 libevent_extra-2.0.so.5 -> libevent_extra-2.0.so.5.1.9 -rwxr-xr-x.  1 root root   310856 Nov 30 20:07 libevent_extra-2.0.so.5.1.9 -rw-r--r--.  1 root root   366268 Nov 30 20:07 libevent_extra.a -rwxr-xr-x.  1 root root      977 Nov 30 20:07 libevent_extra.la lrwxrwxrwx.  1 root root       27 Nov 30 20:07 libevent_extra.so -> libevent_extra-2.0.so.5.1.9 -rwxr-xr-x.  1 root root      935 Nov 30 20:07 libevent.la lrwxrwxrwx.  1 root root       30 Nov 30 20:07 libevent_pthreads-2.0.so.5 -> libevent_pthreads-2.0.so.5.1.9 -rwxr-xr-x.  1 root root    14577 Nov 30 20:07 libevent_pthreads-2.0.so.5.1.9 -rw-r--r--.  1 root root    12166 Nov 30 20:07 libevent_pthreads.a -rwxr-xr-x.  1 root root      998 Nov 30 20:07 libevent_pthreads.la lrwxrwxrwx.  1 root root       30 Nov 30 20:07 libevent_pthreads.so -> libevent_pthreads-2.0.so.5.1.9 lrwxrwxrwx.  1 root root       21 Nov 30 20:07 libevent.so -> libevent-2.0.so.5.1.9

三、编译安装 memcached-1.4.25

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

[pfq@pfq ~]$ tar zxf memcached-1.4.25.tar.gz [pfq@pfq ~]$ cd memcached-1.4.25 [pfq@pfq memcached-1.4.25]$ ./configure --with-libevent=/usr --prefix=/home/pfq/memcached [pfq@pfq memcached-1.4.25]$ echo $? 0 [pfq@pfq memcached-1.4.25]$ sudo make [pfq@pfq memcached-1.4.25]$ echo $? 0 [pfq@pfq memcached-1.4.25]$ sudo make install [pfq@pfq memcached-1.4.25]$ echo $? 0 如有以下文件即安装成功 [pfq@pfq ~]$ ll memcached total 12 drwxr-xr-x. 2 root root 4096 Nov 30 20:28 bin drwxr-xr-x. 3 root root 4096 Nov 30 20:28 include drwxr-xr-x. 3 root root 4096 Nov 30 20:28 share

四、memcached启动与停止

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73

[pfq@pfq ~]$ memcached/bin/memcached -d -m 10 -u pfq -l 192.168.88.141 -p 12000 -c 256 -P /tmp/memcached.pid [pfq@pfq ~]$ telnet 192.168.88.141 12000 -bash: telnet: command not found [pfq@pfq ~]$ sudo yun install -y telnet sudo: yun: command not found [pfq@pfq ~]$ sudo yum install -y telnet [pfq@pfq ~]$ telnet 192.168.88.141 12000 Trying 192.168.88.141... Connected to 192.168.88.141. Escape character is '^]'. 输入stats STAT pid 8162 STAT uptime 128 STAT time 1448887058 STAT version 1.4.25 STAT libevent 2.0.22-stable STAT pointer_size 32 STAT rusage_user 0.001999 STAT rusage_system 0.037994 STAT curr_connections 5 STAT total_connections 6 STAT connection_structures 6 STAT reserved_fds 20 STAT cmd_get 0 STAT cmd_set 0 STAT cmd_flush 0 STAT cmd_touch 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 touch_hits 0 STAT touch_misses 0 STAT auth_cmds 0 STAT auth_errors 0 STAT bytes_read 7 STAT bytes_written 0 STAT limit_maxbytes 10485760 STAT accepting_conns 1 STAT listen_disabled_num 0 STAT time_in_listen_disabled_us 0 STAT threads 4 STAT conn_yields 0 STAT hash_power_level 16 STAT hash_bytes 262144 STAT hash_is_expanding 0 STAT malloc_fails 0 STAT bytes 0 STAT curr_items 0 STAT total_items 0 STAT expired_unfetched 0 STAT evicted_unfetched 0 STAT evictions 0 STAT reclaimed 0 STAT crawler_reclaimed 0 STAT crawler_items_checked 0 STAT lrutail_reflocked 0 END quit Connection closed by foreign host. 这表示启动成功 [pfq@pfq ~]$ kill -9 8162（即上面STAT pid） [pfq@pfq ~]$ telnet 192.168.88.141 12000 Trying 192.168.88.141... telnet: connect to address 192.168.88.141: Connection refused memcached已停止

启动参数说明：

-d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；
-u是运行Memcache的用户；
-l是监听的服务器IP地址；
-p是设置Memcache监听的端口最好是1024以上的端口；
-c选项是最大运行的并发连接数，默认是1024，按照服务器的负载量来设定；
-P是设置保存Memcache的pid文件；