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搭建高可用mongodb集群（三）—— 深入副本集内部机制 - 大数据 & AI - 清...
...plogSize 可以通过–oplogSize设置大小，对于linux 和windows 64位，oplog size默认为剩余磁盘空间的5%。
同步也并非只能从主节点同步，假设集群中3个节点，节点1是主节点在IDC1，节点2、节点3在IDC2，初始化节点2、节点3会从节点1同...
Replace comma with newline in sed on MacOS?
...efore the ^J.
PS, I know the sed in RHEL is GNU, the MacOS sed is FreeBSD based, and although I'm not sure about the Solaris sed, I believe this will work pretty much with any sed. YMMV tho'...
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Windows threading: _beginthread vs _beginthreadex vs CreateThread C++
...on correctly. See for more info: support.microsoft.com/default.aspx/kb/104641
– John Dibling
Apr 22 '09 at 15:40
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Open Cygwin at a specific folder
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Just tested with 64bit cygwin (1.7.27) and chere seems to now exist. pro-tip: remember to launch cygwin terminal with admin privileges.
– BuildTheRobots
Jan 15 '14 at 11:04
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Chrome desktop notification example [closed]
...ion API may no longer be requested from a cross-origin iframe, so we can't demo this using StackOverflow's code snippets. You'll need to save this example in an HTML file on your site/application, and make sure to use localhost:// or HTTPS.
// request permission on page load
document.addEventL...
Programmatically change the src of an img tag
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You can use both jquery and javascript method:
if you have two images for example:
<img cla...
Change select box option background color
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I don't know if you've considered it or not but if your application is based on coloring various groupings of items you should probably use the <optgroup> tag coupled with a class for further referencing. For example:
<select>
<optgroup label="Numbers" class="green">
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How to connect android emulator to the internet
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[EDIT]
For more recent version of Android Studio, the emulator you need to use is no longer in ...
PostgreSQL error 'Could not connect to server: No such file or directory'
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From brew info postgres: ARCHFLAGS="-arch x86_64" gem install pg
– wrdevos
May 27 '13 at 14:52
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Why does Python use 'magic methods'?
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AFAIK, len is special in this respect and has historical roots.
Here's a quote from the FAQ:
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