Linux下安裝memecache快取程式

memcache是乙個高效能的分布式的記憶體物件快取系統,通過在記憶體裡維護乙個統一的巨大的hash表,它能夠用來儲存各種格式的資料.簡單的說就是將資料呼叫到記憶體中，然後從記憶體中讀取，從而大大提高讀取速度。

安裝平台：centos4.7虛擬機器

環境：mysql+apache+php5

所用到的安裝包：

libevent安裝：

[root@localhost soft]# tar -zxf libevent-2.0.19-stable.tar.gz

[root@localhost soft]]# cd libevent-2.0.19-stable
[root@localhost libevent-2.0.19-stable]# ./configure --prefix=/usr
[root@localhost libevent-2.0.19-stable]# make
[root@localhost libevent-2.0.19-stable]# make install

安裝後使用ls -al /usr/lib |grep libevent檢視一下是否存在libevent。

[root@localhost soft]# tar -zxf memcached-1.4.15

.tar.gz
[root@localhost soft]]# cd memcached-1.4.15
[root@localhost memcached-1.4.15]# ./configure --with-libevent=/usr/[root@localhost memcached-1.4.15]# make && make install

驗證memcached是否安裝成功：

[root@localhost memcached-1.4.15]# ls -al /usr/local/bin/mem*

-rwxr-xr-x 1 root root 244827
11-05
21:45 /usr/local/bin/memcached
[root@localhost memcached-1.4.15
]# which memcached
/usr/local/bin/memcached
[root@localhost memcached-1.4.15]#

啟動memcache：

[root@localhost bin]# memcached -d -u root    //

開啟memcache命令
[root@localhost bin]# netstat -anp //
檢視memcache的預設埠11211是否啟動
active internet connections (servers and established)
proto recv-q send-q local address foreign address state pid/program name 
tcp 00
0.0.0.0:3306
0.0.0.0:* listen 8031/mysqld 
tcp 00
0.0.0.0:11211
0.0.0.0:* listen 20849/memcached

通過telnet連線memcache：

[root@localhost bin]# telnet 127.0.0.1 11211

trying 127.0.0.1...
connected to localhost (127.0.0.1).
escape character is '^]'.
stats
stat pid 20849
stat uptime 182
stat time 1352123775
stat version 1.4.15
stat libevent 2.0.19-stable
stat pointer_size 32
stat rusage_user 0.000000
stat rusage_system 0.005999
stat curr_connections 10
stat total_connections 11
stat connection_structures 11
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 67108864
stat accepting_conns 1
stat listen_disabled_num 0
stat threads 4
stat conn_yields 0
stat hash_power_level 16
stat hash_bytes 262144
stat hash_is_expanding 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
end

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