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How to determine if one array contains all elements of another array
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a = [5, 1, 6, 14, 2, 8]
b = [2, 6, 15]
a - b
=> [5, 1, 14, 8]
b - a
=> [15]
(b - a).empty?
=> false
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廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术
...s restart
vi /etc/init.d/nfs （把这个文件的值改一下）
约148行添加 shift+n 然后输入148转到148行
killproc nfsd -9#将/etc/init.d/nfs 脚本中的stop 部分中的killproc#nfsd -2 修改为 -9
同时要启动锁机制，因为同时有两个节点要使用同一份数据...
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