➜ ~ node
> var a = 1;
undefined
> typeof a
'number'
> var b = {}
undefined
> typeof b
'object'
> var c = function() {};
undefined
> typeof c
'function'
> var d = '';
undefined
> typeof d
'string'
Author: jpuyy
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node数据类型
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mysqladmin命令
mysqladmin -u root -p processlist -i 3
显示正在运行的processlist,-i 3表示每3秒检测一次。
mysqladmin -u root -p kill 2233
杀掉上面显示的进程2233
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mysql清理重复数据
select object_id from quick.host group by object_id having count(object_id) > 1;
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R610内存插法
插4条8G的内存 A1 A2 B1 B2 (两边各两个白色)插8条4G的内存 1 4 2 5 | 1 4 2 5插8条16G的内存 1 4 2 5 | 1 4 2 5R620插8条8G内存时 只插白色插16条8G内存时 插白色和黑色 -
racktables可以实现的功能及bug
将非虚拟化的机器标记为虚拟化,在打开/index.php?page=virtual时会报错
Internal error
Argument ‘bypass’ of value ‘(NULL)’ is invalid.
解决方法:没有,将有虚拟化的机器标记为非虚拟化
不可以对location做log标记,在打开/index.php?page=objectlog时报错
Missing record
Object ‘object’#’1’ does not exist
解决办法:没有,不对location记录log
/index.php?page=location&tab=log&location_id=1
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python读取ini
http://wklken.me/posts/2012/02/19/python-ini-configparser.html