posts talks a lot about how they 've been handling their growth: Stack exchange's architecture in bullet points, Stack Overflow's New York data center, designing for scalability of management and fault tolerance, Stack Overflow search-now 81% less, Stack Overflow net Work configuration, does stackoverflow use caching and if so, how ?, Which tools and technologies build the stack exchange network ?.
Some of the more obvious differences except SS time
For example, how can we use matlab to calculate the air status points in a Humidity Chart? How to obtain dual points using matlab? Maybe the first problem is still complicated, but the second problem is too much. It is completely regarded as Baidu knows or stackoverflow. (Without degrading stackoverflow, it just describes the scope of specialization.) In my opinion, in zhihu, there should be a higher topic
English Original: StackOverflow update:560m pageviews A Month, Servers, and It's all about performance
StackOverflow is an IT technology quiz site where users can submit and answer questions on the website. Now the StackOverflow has 4 million users, 40 million answers, PV5.6 billion, the world ranked 54th. However, it is worth noting that the total numbe
1.1.1 Summary
In most cases, our Web programs not only need to provide users with specific data, but in some cases, we also need to provide advanced users or managers with functions such as data aggregation and analysis charts.
If we don't want to display a lot of annoying data and want to display the data intuitively through a pie chart or bar chart, we can consider using chart controls.
When you visit my blog, you can see a tool on the left to count the number of visitors each day. This is a
%
A –
17
17
Pascal
0.808%
+0.10%
A
18
18
Transact-SQL
0.654%
-0.04%
A-
19
16
Ada
0.649%
-0.1%
B
20
12
Lua
0.566%
-0.54%
B
And it ' s not all yet. I ' M proud to is a part of the StackOverflow community, so let's count how many questions each framework rises:35,
Windows764bit, nginx1.5.8, php5.4.22, two virtual hosts, a.cn, B .cn {code...} on the virtual host B .cn, get the content of a file under a.cn through curl. The result page returns 504GatewayTime-out. There is a post on stackoverflow. I follow this post to do... windows 7 64bit, nginx 1.5.8, php 5.4.22, 2 virtual hosts, a.cn, B .cn
hosts:127.0.0.1 a.cn127.0.0.1 b.cn
On the VM B .cn, use curl to obtain the content of a file under a.cn.Result page
as forums and stackoverflow) will help you gain knowledge through other programmers. At the same time, you should read a lot of blogs and talk about Joel as a good blog in the software industry.Article). Coding horror and Lambda the ultimate. Of course, news.ycombinator.com. is also good. 8.Write code (Write about Coding) Practice writing code on a blog. You can also answer questions on different Q A websites. You can also write some tutorials (d
has not been updated two years Blog!!!Stackexchange, Address: https://github.com/StackExchange, open source These projects are all used on the StackOverflow line.Speaking of StackOverflow, a two-word gossip, all yards should not be unfamiliar, especially for. NET developers, it may be the application of the. NET only a few still can take the shot of the famous site. MySpace Away, a complete turn of the east
those languages.The popularity of languageFrom tag followers (tag follower) on StackOverflow, we can see the total popularity of a language in the present:After analyzing employment trends, we know that Java and JavaScript developers are in great demand, so it's no surprise that they have the most tag followers. In particular, Java is still the most used label in StackOverflow, but JavaScript seems to be m
English Original: StackOverflow update:560m pageviews A Month, Servers, and It's all about performance
StackOverflow is an IT technology quiz site where users can submit and answer questions on the website. Now the StackOverflow has 4 million users, 40 million answers, PV5.6 billion, the world ranked 54th. However, it is worth noting that the total numbe
"Editor's note" StackOverflow is an IT technology quiz site where users can submit and answer questions on the website. Now the StackOverflow has 4 million users, 40 million answers, PV5.6 billion, the world ranked 54th. However, it is worth noting that the total number of servers that support their sites is only 25, and that they maintain very low resource usage, a battle for high efficiency, load balancin
StackOverflow between programmers can be said that no one knows no one, and even often joked: "If StackOverflow, the output of the world's code will fall by more than half" may sound a bit exaggerated, But it's not hard to imagine the importance of this website in the software world. Do you know that the most popular programming language is that one, according to Stack
Today, I looked at the MySQL database and found myself devision a table of Devison.
When I change it, I notice that clicking on the structure of table in phpMyAdmin will jump out of this error: #1054 Unknown column ' Devison ' in ' order clause '. Even if I delete the field to rebuild, the table is deleted and the rebuild is not valid.
Go to StackOverflow and find this problem is very similar to my situation. Direct URL
According to the message under
interesting than reading a book.
6. Read the source code and learn from it.
Study famous software projects like Linux kernel (Note: It's huge ). A good operating system suitable for learning purposes is minix3. you can learn many new language idioms and one or two software system architectures. Reading unfamiliar code is daunting at the beginning, but the reward is generous.
You can also improve your understanding of some of your frequently-used APIs, or programming languages-by reading it
you want to see some real-world applications of your applications, or wocould like to aim towards web development with python, this series might be the one for you.
The screencast takes you from nothing to building a dynamic website using a Python web framework called Django.Showmedo's Python screencasts
Stackoverflow isn't just full of 'newbie 'errors and problems.
Showmedo has a huge catalogue of Python related videos. while it may not be the m
[] args) {
byte[] bigMemory = new byte[1024 * MB];
}
}
4. Stack Overflow
Stack overflow is also more common, sometimes we write recursive calls do not have the correct termination conditions, the method will continue toRecursion, the depth of the stack continues to increase, resulting in stack overflow.
Package com.cdai.jvm.overflow;
public class StackOverflow {
private static int stackdepth = 1;
public stati
These two questions, such as those that have recently been invited to answer,
How to calculate the air state point on the enthalpy wet diagram with matlab?
How to find double integral with matlab?
Perhaps the first question is still a bit complicated, but the second question is too much, it is completely to know as Baidu knows or StackOverflow. (not to belittle the meaning of StackOverflow, but to illustra
10 effective tools for programmers to improve web site development: Git has a lot of version-controlled tools before it. There are good and bad. But they are all more or less misguided. This is when Git appears. Once you've used this magical tool, it's hard to see how much better you'll come across. You didn't use Git? StackOverflow really, I'm not kidding. Did you use Google to search technical data in 05? Or did you search Yahoo in 2000? or 95 that
Windows 7 64bit, Nginx 1.5.8, PHP 5.4.22,2 virtual host, a.cn,b.cn
hosts:127.0.0.1 a.cn127.0.0.1 b.cn
On the virtual host b.cn, get the contents of a file under a.cn with Curl.The results page returns 504 Gateway time-out.
There is a post on the StackOverflow, I follow him to do, but still did not solveHttp://stackoverflow.com/questions/9276114/php-curl-doesnt-see-the-etc-hosts
This is another post, but I didn't solve the problem.Http://stackover
mutablecopy]; [Dictionary release]; } [FileManager release];This basically completes the functionality we need, and let's look at how we can use the caching features we've designed.Example scenario:We use a UIWebView to show StackOverflow this site, we cache the content of this site to local 20 seconds, if the user to request the site within 20 seconds, then get the content from the local file, or after 20 seconds, then retrieve the data
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