日期:2014-05-16  浏览次数:20607 次

memcached linux 下操作

telnet localhost 200001 #登陆

  stats #查看状态

  flush_all #清理

  quit #退出

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首先,需要了解Memcached协议,如果不清楚可参考《Memcached 协议中英文对照:http://bbs.chinaitlab.com/thread-308784-1-1.html》。

??? 1、数据存储(假设key为zhangyan,value为12345)

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?printf "set zhangyan 0 0 5\r\n12345\r\n" | nc 127.0.0.1 11211

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??? STORED

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??? 2、数据取回(假设key为zhangyan)

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?printf "get zhangyan\r\n" | nc 127.0.0.1 11211

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??? VALUE zhangyan 0 5
???  12345
???  END

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??? 3、数值增加1(假设key为zhangyan,并且value为正整数)

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?printf "incr zhangyan 1\r\n" | nc 127.0.0.1 11211

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??? 12346

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??? 4、数值减少3(假设key为zhangyan,并且value为正整数)

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?printf "decr zhangyan 3\r\n" | nc 127.0.0.1 11211

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??? 12343

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??? 5、数据删除(假设key为zhangyan)

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?printf "delete zhangyan\r\n" | nc 127.0.0.1 11211

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??? DELETED

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??? 6、查看Memcached状态

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?printf "stats\r\n" | nc 127.0.0.1 11211

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? STAT pid 3025
 STAT uptime 4120500
 STAT time 1228021767
 STAT version 1.2.6
 STAT pointer_size 32
 STAT rusage_user 433.463103
 STAT rusage_system 1224.515845
 STAT curr_items 1132460
 STAT total_items 8980260
 STAT bytes 1895325386
 STAT curr_connections 252
 STAT total_connections 547850
 STAT connection_structures 1189
 STAT cmd_get 13619685
 STAT cmd_set 8980260
 STAT get_hits 6851607
 STAT get_misses 6768078
 STAT evictions 0
 STAT bytes_read 160396238246
 STAT bytes_written 260080686529
 STAT limit_maxbytes 2147483648
 STAT threads 1
 END

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  7、模拟top命令,查看Memcached状态:

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?watch "printf 'stats\r\n' | nc 127.0.0.1 11211"

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?watch "echo stats | nc 127.0.0.1 11211"

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转自:http://hi.baidu.com/gmail07/item/3974d60f7dbaa1e6f55ba625
http://www.bitscn.com/os/linux/200812/155768.html
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