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MongoDB与内存 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
... | grep 10240 -A 10
所有连接消耗的内存加起来会相当惊人，推荐把Stack设置小一点，比如说1024：
shell> ulimit -s 1024
注：从MongoDB1.8.3开始，MongoDB会在启动时自动设置Stack。
有时候，出于某些原因，你可能想释放掉MongoDB占用的内存...
Create whole path automatically when writing to a new file
...thing like:
File file = new File("C:\\user\\Desktop\\dir1\\dir2\\filename.txt");
file.getParentFile().mkdirs();
FileWriter writer = new FileWriter(file);
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GestureDetect 扩展：手势检测扩展，识别滑动、点击和长按手势 · App Inventor 2 中文网
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GestureDetect 扩展
下载链接
功能概述
扩展特性
截图
积木示例
使用方法
使用方法
基本设置
配...
Utils to read resource text file to String (Java) [closed]
...in the Resources class. For example:
URL url = Resources.getResource("foo.txt");
String text = Resources.toString(url, StandardCharsets.UTF_8);
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理解和配置 Linux 下的 OOM Killer - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...m_score_adj
当然，如果需要的话可以完全关闭 OOM killer（不推荐用在生产环境）：
# sysctl -w vm.overcommit_memory=2
# echo "vm.overcommit_memory=2" >> /etc/sysctl.conf
找出最有可能被 OOM Killer 杀掉的进程
我们知道了在用户空间可以通过操作...
Uber5岁了，一次性告诉你它的商业之道 - 资讯 - 清泛网 - 专注C/C++及内核技术
...，与同学合伙创办了Sour网站，这是一个提供流媒体交换下载的服务平台，网友之间可以交换音乐和电影视频。
或许只是偶然，这个网站从一诞生就触犯了美国版权保护法。1999年，Sour被30多家音乐、影视出版巨头联合起诉，索...
nodeJs callbacks simple example
...e of using both functions.
Synchronous:
var data = fs.readFileSync('test.txt');
console.log(data);
The code above blocks thread execution until all the contents of test.txt are read into memory and stored in the variable data. In node this is typically considered bad practice. There are times th...
diff to output only the file names
... will miss files of identical size but different content, e.g. old/version.txt "29a" new/version.txt "29b". Use instead: rsync -ric --dry-run old/ new/ where the "-i" argument allows to obtain the file list directly via rsync -ric --dry-run old/ new/ | cut -d" " -f 2
– iolsmit
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'git add --patch' to include new files?
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When I tried git add -p someNewFile.txt on a new file (an untracked file), git would simply output No changes. and stop. I had to tell git that I intended to track the new file first.
git add -N someNewFile.txt
git add -p
However, since the file was untrack...
How to perform better document version control on Excel files and SQL schema files
... answer I have written here can be applied in this case. A tool called xls2txt can provide human-readable output from .xls files. So in short, you should put this to your .gitattributes file:
*.xls diff=xls
And in the .git/config:
[diff "xls"]
binary = true
textconv = /path/to/xls2txt
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