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搭建高可用mongodb集群(二)—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...

...est/replset/data #进入mongodb文件夹 cd /data/mongodbtest 3、下载mongodb的安装程序包 wget http://fastdl.mongodb.org/linux/mongodb-linux-x86_64-2.4.8.tgz 注意linux生产环境不能安装32位的mongodb,因为32位受限于操作系统最大2G的文件限制。 ...
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How to search and replace globally, starting from the cursor position and wrapping around the end of

...the user presses q again, don't wrap. So basically, quit search by tapping qq instead of q! (And if you do want to wrap, just type y.) :,$s/BEFORE/AFTER/gce|echo 'Continue at beginning of file? (y/q)'|if getchar()!=113|1,''-&&|en I actually have this mapped to a hotkey. So, for example, i...
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How can I create directory tree in C++/Linux?

...ipt ** PREFIX=mkpath.$$ ** NAME=./$PREFIX/sa/32/ad/13/23/13/12/13/sd/ds/ww/qq/ss/dd/zz/xx/dd/rr/ff/ff/ss/ss/ss/ss/ss/ss/ss/ss ** : ${MKPATH:=mkpath} ** ./$MKPATH $NAME & ** [...repeat a dozen times or so...] ** ./$MKPATH $NAME & ** wait ** rm -fr ./$PREFIX/ */ int main(int argc, char **argv...
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Why would you use String.Equals over ==? [duplicate]

...null, these methods are working differently: string x = null; string y = "qq"; if (x == y) // returns false MessageBox.Show("true"); else MessageBox.Show("false"); if (x.Equals(y)) // returns System.NullReferenceException: Object reference not set to an instance of an object. - because x i...
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Send string to stdin

...gt;.k.> 00000d0: 2f72 e03e 0a74 e43e 7171 e83e 506a ec3e /r.>.t.>qq.>Pj.> 00000e0: 945e f03e 274e f43e f738 f83e f11e fc3e .^.>'N.>.8.>...> 00000f0: 0000 003f 09ee 013f 89d9 033f 77c2 053f ...?...?...?w..? 0000100: caa8 073f 788c 093f 776d 0b3f be4b 0d3f ...?x..?wm.?.K...
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Difference between ProcessBuilder and Runtime.exec()

...on_path+uninstall_path+uninstall_command, uninstall_arguments); Process qq=new ProcessBuilder(params).start(); – gal Jul 28 '11 at 9:50 ...
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解决Scrapy警告:You do not have a working installation of the service_i...

...pi/service_identity)来安装。 我们可以直接通过命令行下载: pip install service_identity-17.0.0-py2.py3-none-any.whl 如果上面的方法没能解决问题,很大可能是有些包的版本不一样导致的,这个时候我们可以用下面这行代码来强制...
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VS 2015 Preview版已经发布,支持Android开发 - IT产品资讯 - 清泛网 - 专注IT技能提升

...udio 2015迈出了跨平台支持的最新一步,其预览版已经放出下载。VS 2015将支持 Clang 编辑器和LLVM框架,支持为Android 及未来的iOS开发应用。使用 Google Android SDK的开发者都知道,Google的Android 模拟器非常慢,微软开发了自己的Android模...
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解决Scrapy警告:You do not have a working installation of the service_i...

...pi/service_identity)来安装。 我们可以直接通过命令行下载: pip install service_identity-17.0.0-py2.py3-none-any.whl 如果上面的方法没能解决问题,很大可能是有些包的版本不一样导致的,这个时候我们可以用下面这行代码来强制...
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解决Scrapy警告:You do not have a working installation of the service_i...

...pi/service_identity)来安装。 我们可以直接通过命令行下载: pip install service_identity-17.0.0-py2.py3-none-any.whl 如果上面的方法没能解决问题,很大可能是有些包的版本不一样导致的,这个时候我们可以用下面这行代码来强制...