[Memcached]操作

telnet连接memcached

查看端口是否可访问

# telnet 172.16.1.1 11211

Trying 172.16.1.1...

Connected to 172.16.1.1.

Escape character is '^]'.

^]

添加获取数据

添加语法set没有值的时候添加，有值的时候修改

set key flags exptime bytes [noreply]

value

key：键值 key-value 结构中的 key，用于查找缓存值。
flags：可以包括键值对的整型参数，客户机使用它存储关于键值对的额外信息。
exptime：在缓存中保存键值对的时间长度（以秒为单位，0 表示永远）
bytes：在缓存中存储的字节数
noreply（可选）：该参数告知服务器不需要返回数据
value：存储的值（始终位于第二行）（可直接理解为key-value结构中的value）

set username 0 60 3

abc

STORED

get username

VALUE username 0 3

abc

END

删除

delete username

# 没有提示说明删除成功

清除所有

flush all

查看memcached状态

# stats

STAT pid 37102

STAT uptime 4644

STAT time 1581828962

STAT version 1.5.22

STAT libevent 2.1.11-stable

STAT pointer_size 64

STAT rusage_user 0.434336

STAT rusage_system 0.283283

STAT max_connections 1024

STAT curr_connections 2

STAT total_connections 5

STAT rejected_connections 3

STAT connection_structures 3

STAT reserved_fds 20

STAT cmd_get 2

STAT cmd_set 4

STAT cmd_flush 0

STAT cmd_touch 0

STAT cmd_meta 0

STAT get_hits 2

STAT get_misses 0

STAT get_expired 0

STAT get_flushed 0

STAT delete_misses 2

STAT delete_hits 1

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 305

STAT bytes_written 5921

STAT limit_maxbytes 67108864

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 slab_reassign_rescues 0

STAT slab_reassign_chunk_rescues 0

STAT slab_reassign_evictions_nomem 0

STAT slab_reassign_inline_reclaim 0

STAT slab_reassign_busy_items 0

STAT slab_reassign_busy_deletes 0

STAT slab_reassign_running 0

STAT slabs_moved 0

STAT lru_crawler_running 0

STAT lru_crawler_starts 3060

STAT lru_maintainer_juggles 5967

STAT malloc_fails 0

STAT log_worker_dropped 0

STAT log_worker_written 0

STAT log_watcher_skipped 0

STAT log_watcher_sent 0

STAT bytes 70

STAT curr_items 1

STAT total_items 4

STAT slab_global_page_pool 0

STAT expired_unfetched 0

STAT evicted_unfetched 0

STAT evicted_active 0

STAT evictions 0

STAT reclaimed 1

STAT crawler_reclaimed 0

STAT crawler_items_checked 1

STAT lrutail_reflocked 0

STAT moves_to_cold 4

STAT moves_to_warm 0

STAT moves_within_lru 0

STAT direct_reclaims 0

STAT lru_bumps_dropped 0

END

巴特西

[Memcached]操作

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