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How to Create a User for a Specific Database
It is a common operation to create a user and giant all the permission to a specific database.
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Index of Using MongoDB
In this post, I am going to list a set of page as navigation, so that we can use MongoDB easier. (more…)
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A sample to automatically cleanup tasks executed too long
Here is a sample code to cleanup MongoDB tasks. (more…)
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Here document, another way to write multiline into one file
Here documents are indeed a powerful feature in Unix-like operating systems, allowing for the efficient creation and manipulation of files from within a shell script. They are particularly useful when you need to insert multiple lines of text into a file without having to resort to looping constructs or temporary files.
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Can not exec “libtoolize”/”aclocal”
Sometimes in building projects, we may meet an error seems as follow:
Can't exec "libtoolize": No such file or directory ....
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How to rename your machine
Changing the name of your os could be the first step after initialized you server -- at least it works for me. (more…)
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vsftpd: GnuTLS error -15: An unexpected TLS packet
TL;DR: Configuring vsftp is a difficult work and we always meet various of errors. In this post, I am going to introduce one possible solution of error "GnuTLS error -15: An unexpected TLS packet was received." when you are using vsftpd. (more…)
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Import GPG keys in Ubuntu 14 LTS
Installing deb repository requires gpg-keys some time. Recently, I am trying to add a mongo repository for Ubuntu 14, which requires to request some gpg keys first. (more…)
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ps command not found in fedora image in docker
Docker is a lightweight virtual machine container. To minimize the image, most of the official distributions were erased most the unnecessary system tools. (more…)
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cstdlib:75:25: fatal error: stdlib.h: No such file or directory
Recently I switched to gcc-6 in my OS X, and faced to VARIOUS of disasterS. One of them is the gcc compile cannot find header "stdlib.h" (more…)
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大规模社会网络中个体之间影响力的度量
本文大多数内容摘自实验室一位 Paper Machine Jing ZHANG老师的博士论文，它涉及到我们投出的论文 Panther: Fast Top-k Similarity Search in Large Networks，本体可以参考此处。本文意在随意介绍给恰好路过此处的哪位一点在大规模社会网络结构数据中对个体之间的影响力进行快速度量的思路，若有兴趣看看原文，并对你当前的工作有所帮助，那实在太棒了。
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已知一个程序，如何在 yum 寻找他所在的包
已知可执行文件 libtoolize（当然，目标也可以是 xxx.so 之类）, 但是我不知道它在在什么 rpm 包下。一个很简单的方法是利用 yum 全局找一下。 (more…)