关于memcached 常用命令及使用说明

<command name> <key> <flag> <expire> <bytes>
<data block>

set mykey 0 0 3
123
STORED
set mykey 0 0 3
456
STORED

add mykey 0 0 3
123
STORED
add mykey 0 0 3
456
NOT_STORED

set mykey 0 0 3
123
STORED
replace mykey 0 0 3
456
STORED
delete mykey
DELETED
replace mykey 0 0 3
678
NOT_STORED

set mykey 0 0 3
123
STORED
set mykey1 0 0 3
456
STORED
get mykey mykey1
VALUE mykey 0 3
123
VALUE mykey1 0 3
456
END

set mykey 0 0 3
123
STORED
gets mykey
VALUE mykey 0 3 7
123
END
replace mykey 0 0 3
888
STORED
gets mykey
VALUE mykey 0 3 8
888
END

set mykey 0 0 3
123
STORED
gets mykey
VALUE mykey 0 3 9
123
END
cas mykey 0 0 3 8
456
EXISTS
cas mykey 0 0 3 9
456
STORED

set mykey 0 0 3
123
STORED
append mykey 0 0 3
456
STORED
get mykey
VALUE mykey 0 6
123456
END
append notexists 0 0 3
456
NOT_STORED

set mykey 0 0 3
123
STORED
prepend mykey 0 0 3
456
STORED
get mykey
VALUE mykey 0 6
456123
END
prepend notexists 0 0 3
456
NOT_STORED

set mykey 0 0 3
123
STORED
delete mykey
DELETED
delete mykey
NOT_FOUND

flush_all
OK

pid                     Memcached 进程ID  
  
uptime                  Memcached 运行时间，单位：秒  
  
time                    Memcached 当前的UNIX时间  
  
version                 Memcached 的版本号  
  
rusage_user             该进程累计的用户时间，单位：秒  
  
rusage_system           该进程累计的系统时间，单位：秒  
  
curr_items              Memcached 当前存储的内容数量  
  
total_items             Memcached 启动以来存储过的内容总数  
  
bytes                   Memcached 当前存储内容所占用的字节数(*/1024/1024=mb)  
  
curr_connections        当前连接数量  
  
total_connections       Memcached 运行以来接受的连接总数  
  
connection_structures   Memcached 分配的连接结构的数量  
  
cmd_get                 查询请求总数  
  
cmd_set                 存储（添加/更新）请求总数  
  
get_hits                查询成功获取数据的总次数  
  
get_misses              查询成功未获取到数据的总次数  
  
bytes_read              Memcached 从网络读取到的总字节数  
  
bytes_written           Memcached 向网络发送的总字节数  
  
limit_maxbytes          Memcached 在存储时被允许使用的字节总数

stats cachedump 1 0
ITEM mykey [3 b; 1362880145 s]
END