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MongoDB副本集详解 优于以往的主从模式 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...以自动投票，选举出新的Master，并引导其余的Slave服务器连接新的Master，
而这个过程对于应用是透明的。可以说MongoDB的副本集是自带故障转移功能的主从复制。
1 相对于传统主从模式的优势
传统的主从模式，需要手工指定...
What is the preferred Bash shebang?
... itself is undefined under POSIX, so I could make #!stop toaster start the USB coffee machine and be POSIX compliant. So #!/usr/bin/env bash isn't particularly better than #!/bin/bash, it could be less portable depending.
– darkfeline
Mar 8 '18 at 8:05
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How to debug apk signed for release?
...r manifest file, and then:
Plug your phone into your computer and enable USB debugging on the phone
Open eclipse and a workspace containing the code for your app
In Eclipse, go to Window->Show View->Devices
Look at the Devices view which should now be visible, you should see your device list...
Copy folder recursively, excluding some folders
...ample usage
EXCLUDE="
.git
my_secret_stuff
"
cpr "$HOME/my_stuff" "/media/usb" "$EXCLUDE"
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What happens if a finally block throws an exception?
...isks; problems can be much more common with those. If someone yanks out a USB stick before a file has been fully written, it would be better to tell them immediately than wait until they get where they're going and find the file is corrupt. Yielding to the earlier error when there is one may be se...
How to prevent sticky hover effects for buttons on touch devices
...ety of Android devices. I can't guarantee that it will work when a generic USB touch input (such as a stylus) is added to the mix.
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C# using streams
...that you get a unified api to interact with streams of any underlying type usb, file etc.
Why would you treat data as stream - because data chunks are loaded on-demand, we can inspect/process the data as chunks rather than loading the entire data into memory. This is how most of the programs deal w...
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
...cted Secondary/Secondary Inconsistent/Inconsistent C
cs：表示连接状态
ro: 表示主从关系 上面的表示都为从
ds：硬盘状态信息 上面表示已经实时同步中，Inconsistent：不一致
# cat /proc/drbd
version: 8.4.6 (api:1/proto:86-101)
GIT-hash: 83...
How to shrink the .git folder
...blem solved. :-) History gone :-(
I do this because my repo is on a small USB key. I don't want or need my entire history.
If I had a method for just truncating the history, I would use that.
If I were interested in keeping my history I would archive the current repository.
At some point later I...
做程序猿的老婆应该注意的一些事情 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...至更晚或者通宵。周六日白天去公司加班。那时候还在做手机移植。人年轻，通宵一下还能扛得住，通宵后第二天还能继续上班。现在偶尔程序猿也会通宵发版，但是第二天几乎要休息大半天，不服年龄不行。
从大学的...