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二十、Memcached stats sizes 命令

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文章永久连接:https://tech.souyunku.com/?p=4676

Memcached stats sizes 命令用于显示所有 item大小个数

语法

stats sizes

该命令返回两列,第一列是 item 的大小,第二列是 item 的个数

Memcached 1.4.27 及以后的版本自动开启了 stats sizes 功能 这之前的版本需要在 Memcached 启动时带上 -o track_sizes 则来开启

范例

flush_all
OK
set site 0 1000 11
tech.souyunku.com
STORED
set age 0 1000 2
28
STORED
stats sizes
STAT 96 2  # item 大小 96, 总共有2个key
END

1、4.27 之前的版本,如果启动 memcached 时没有设置 -o track_sizes 选项会是如下结果

flush_all
OK
set site 0 1000 11
tech.souyunku.com
STORED
set age 0 1000 2
28
STORED
stats sizes
STAT sizes_status disabled  # 提示 sizes_status 不可用
END

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