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MySQL复制的概述、安装、故障、技巧、工具 - 数据库(内核) - 清泛网 - 专注...
...的步骤。
故障
问题：主从复制不止何故停止了，我该怎么办？
答案：复制错误多半是因为日志错误引起的，所以首先要搞清楚是主日志错误还是中继日志错误，从错误信息里一般就能判断，如果不能可以使用类似下面的mysqlb...
How do I render a partial of a different format in Rails?
...tion in some cases — e.g. rendering a HTML template from inside a format.pdf block can only be done with render "template", formats: [:html], content_type: "text/html". I need this because I allow direct download of samples of my books only for members of my email list — regular visitors get a ...
服务器保持大量TIME_WAIT和CLOSE_WAIT的解决方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...内核参数优化的话）上经常会遇到这个问题，这个问题是怎么产生的呢？
从 上面的示意图可以看得出来，TIME_WAIT是主动关闭连接的一方保持的状态，对于爬虫服务器来说他本身就是“客户端”，在完成一个爬取任务之后，他就...
What file uses .md extension and how should I edit them?
... use a word processor or Acrobat for non .txt textual files like .doc and .pdf.
– labyrinth
Mar 24 '15 at 20:56
1
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Comparison of CI Servers? [closed]
...h that planning I created this wallchart on the Elements of Enterprise CI (PDF; no registration required). Please don't let the "E-word" put you off; I just mean stuff beyond the basic fast feedback CI build. :)
It isn't tool specific but lists a variety of practices you might consider while you're...
Algorithm to randomly generate an aesthetically-pleasing color palette [closed]
...thod and it's described in this paper:
http://threekings.tk/mirror/ryb_TR.pdf
as "Paint Inspired Color Compositing".
The algorithm generates the colors and each new color is chosen to maximize its euclidian distance to the previously selected ones.
Here you can find a a good implementation in ja...
Is the SQL WHERE clause short-circuit evaluated?
...
ANSI SQL Draft 2003 5WD-01-Framework-2003-09.pdf
6.3.3.3 Rule evaluation order
[...]
Where the precedence is not determined by the Formats or by
parentheses, effective evaluation of expressions is generally
performed from left to right. However, it is
implementation-de...
JavaScript blob filename without link
...work for me because I need to open the file in a new tab. I have to show a PDF in Chrome, but I need to show a user friendly name in the URL toolbar, and if the user wants to download through the download icon, I have to put the same user friendly name in the file.
– Adrián Pa...
Git hook to send email notification on repo changes
...ent :)}
If the link becomes unavailable here is another link to my gDocs @
PDF version of Clements guide
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Printing hexadecimal characters in C
...ong" edition):
If you read the actual C11 standard on page 311 (329 of the PDF) you find:
hh: Specifies that a following d, i, o, u, x, or X conversion specifier applies to a signed char or unsigned char argument (the argument will have been promoted according to the integer promotions, but its val...