一 、安裝
[root@master opt]# tar -zxvf memcached-1.4.25.tar.gz
[root@master opt]# mv memcached-1.4.25 memcached
[root@master opt]# cd memcached
[root@master memcached]# ./configure
checking for library containing gethostbyname... none required
checking for libevent directory... configure: error: libevent is required. you can get it from
if it's already installed, specify its path using --with-libevent=/dir/
解決方案：
[root@master opt]# wget
[root@master opt]# tar -zxvf libevent-1.4.14b-stable.tar.gz
[root@master opt]# cd libevent-1.4.14b-stable
[root@master libevent-1.4.14b-stable]# #./configure --prefix=/usr
[root@master libevent-1.4.14b-stable]# make && make install
重新編譯配置memcached
[root@master memcached]# ./configure --with-libevent=/usr
[root@master memcached]# make && make install
二 、啟動
1.啟動memcache的伺服器端：
# /usr/local/bin/memcached -d -m 10 -u root -l 192.168.0.200 -p 12000 -c 256 -p /tmp/memcached.pid
-d選項是啟動乙個守護程序，
-m是分配給memcache使用的記憶體數量，單位是mb，我這裡是10mb，
-u是執行memcache的使用者，我這裡是root，
-l是監聽的伺服器ip位址，如果有多個位址的話，我這裡指定了伺服器的ip位址192.168.0.200，
-p是設定memcache監聽的埠，我這裡設定了12000，最好是1024以上的埠，
-c選項是最大執行的併發連線數，預設是1024，我這裡設定了256，按照你伺服器的負載量來設定，
-p是設定儲存memcache的pid檔案，我這裡是儲存在 /tmp/memcached.pid，
2.如果要結束memcache程序，執行：
# kill `cat /tmp/memcached.pid`
也可以啟動多個守護程序，不過埠不能重複。
驗證是否啟動成功
[root@master memcached]# netstat -tnpl |grep 11211
tcp 0 0 127.0.0.1:11211 0.0.0.0:* listen 19061/memcached
三 、測試
[root@master ~]# telnet 127.0.0.1 11211
trying 127.0.0.1...
connected to localhost.localdomain (127.0.0.1).
escape character is '^]'.
stats
stat pid 19061
stat uptime 586
stat time 1451687276
stat version 1.4.25
stat libevent 1.4.14b-stable
stat pointer_size 64
stat rusage_user 0.008998
stat rusage_system 0.046992
stat curr_connections 6
stat total_connections 7
stat connection_structures 7
stat reserved_fds 20
stat cmd_get 2
stat cmd_set 0
stat cmd_flush 0
stat cmd_touch 0
stat get_hits 0
stat get_misses 2
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 193
stat bytes_written 108
stat limit_maxbytes 134217728
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 524288
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>>set key 33 0 4 \r\n
1234
stored
>>get key 33
value key 33 4
1234
endquit
connection closed by foreign host.
[root@master ~]#
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