9/4/10 by Felix Geisendörfernode. JS has generally caused II reactions in people I ' ve introduced it to. Basically people either "got it" right away, or they ended up being very confused.If you have been in the second group so far, this is my attempt to explain node:
It's a command line tool. You download a tarball, compile and install the source.
It Let's run JavaScript programs by typing ' node My_app.js ' in your terminal.
The JS is executed by the V8 JavaScript engine (the
.) )The following is an overview of the NGINX architecture.In this figure, there is a background application block for a Python application server that needs to be accessed through FastCGI. NGINX does not know how to run Python, so it needs a gateway to enter an environment that can run Python. FastCGI is a widely used user interface in languages such as PHP and Python.However, the more common alternative to communication between Python and NGINX is the Service Gateway Interface (WSGI). WSGI can
because the dataset is small.
Uwsgi features its own process control program. It is written in C language and uses the natvie function, which is similar to spawn-fcgi/php-fpm. Therefore, uwsgi supports a variety of application frameworks, including (python, lua, ruby, erlang, go) and so on.
Gunicorn, a tool similar to uwsgi, is transplanted from the rails Deployment Tool (Unicorn. However, the Protocol used is WSGI, Which is full name of the Python W
create a virtual environment when developing your Python application.
# Install pip $ [sudo] python get-pip.py # Install Virtualenv$ [sudo] pip install virtualenv # Create a virtual environment$ virtualenv venv # Activate venv$ source venv/bin/activate
Create a Django Application
We recommend that you install django-toolbelt, which consists of the following parts.
-Django-Gunicorn (WSGI server)-Dj-database-url (A Django Configuration tool)-Dj-static (A Django static file server)
(venv)$ pip
good. It originated from Unicorn in the ruby community and was successfully transplanted to python to become a wsgi http Server. It has the following advantages:
Easy to configure. Multiple worker processes can be automatically managed. Different backend extended interfaces (such as sync, gevent, and tornado) can be selected)
Compared with the server side, the application side (or you can think of the Framework) is much simpler to do. It only needs t
Last week, Microsoft HoloLens's rival AR glasses Meta 2 was officially shipped, and Microsoft was in the rush. We know that Meta 2 is not only cheaper than HoloLens in price, but also not weak in performance, META2 has a visual angle of 90 degrees, 60 degrees higher than HoloLens. However, the patent now exposed by Microsoft is expected to increase the field of view of HoloLens, but less likely to reduce the cost of equipment.According to the patent document description, according to the patent
How to install Plex Media Server 0.9.9 in Ubuntu/Fedora/CentOS
Plex Media Server is an open-source multimedia application that can turn your Linux release into a multimedia Server. Users can watch movies, listen to music, or display photos on slides. In addition, users can remotely manage their servers through the Web dashboard.
The latest available version of Plex Media Server 0.9.9 has been released for a while.
This article will teach you how to install Plex Media Server 0.9.9 (supported Lin
FastCGI protocol, but created the uwsgi protocol described above.
UWSGI has the following features:
Gunicorn:
A tool similar to uWSGi is transplanted from the rails Deployment Tool (Unicorn. However, the Protocol used is the WSGI mentioned above. This is the official standard (PEP 333) defined in python2.5, And the deployment is simple. Click here for a detailed tutorial. Gunicorn adopts the prefork mode. The Gunicorn server is compatible with vari
concept of application server, let's take a look at the six best Python application servers.
1. Django
Django is a free and open-source Web application framework written in the Python language. It complies with the architecture mode of Model-View-controller MVC.
Https://www.djangoproject.com/
2. Gunicorn
Gunicorn "green unicorn" is a Python Web Server Gateway Interface HTTP server that supports Unix. It provides a large number of functions to make d
simple, a 4 byte header+ a body,body can be a lot of protocol package, such as http,cgi, etc. (through the header field label), I used to do a small-scale performance comparison test, and the results showed that performance was less obvious than Uwsgi and fastcgi, and could be the reason for the smaller data set.
Uwsgi is characterized by its own process Control Program. it is written in c, using the Natvie function, which is actually similar to SPAWN-FCGI/PHP-FPM. So UWSGI can support a
/nginx/gitlab_error.log;
Location/{# serve static files from defined root folder;.# @gitlab is a named location for the upstream fallback, and so on belowTry_files $uri $uri/index.html $uri. html @gitlab;}
# If a file, which is isn't found in ' root folder is requested,# then the proxy pass the request to the Upsteam (Gitlab Unicorn)Location @gitlab {Proxy_read_timeout 300; # https://github.com/gitlabhq/gitlabhq/issues/694Proxy_connect_timeout 300;
, there are a few big V a bunch of double-pass useless theory! The Unicorn 650 single chip integrated CDMA baseband, telecom secondary card can double-pass the problem! And then let people set up call forwarding! Double pass is not money, open call transfer, once the phone used the call transfer is to money! And the opening of the call transfer or the leakage of the phone, call transfer, the person who calls you is generally heard on the phone call, a
Python will be the best programming language in the AI eraMobile Internet instead of PC Internet lead in the forefront of the Internet era, Android and iOS once became the two major mobile Internet application platform, the mobile developer is the first choice of two technologies, HTML5 with its cross-platform advantage in mobile Internet application platform occupies an important position, can be said to be the later home. Due to the limitations of technology is difficult to generate more new a
BodyWhen I introduce someone to node. js, there are usually two kinds of reactions, either immediately figuring out what it is, or being confused by it.If you're still in the latter, here's my node explanation:
It is a command line tool, you can download a tarball file, compile and then install the source file;
It allows you node my_app.js to run JavaScript programs at your terminal input;
Node's JS code is executed by the V8 JavaScript engine (which is what makes chrome so fast
Since "Twelve-Five", the state has issued a total of 741 major education policy documents, and entered into the "Thirteen-Five" period of comprehensive reform in the field of education to promote the key period of deepening the realization of the modernization of education, accelerate into the ranks of human resources.Policy support, online education market is surging, education app development also appeared new growth, in addition to huge capital entry, many well-known offline training institut
promote the early stage of the spread of lightning focused on the market to reach the effect of the explosion. After the product on-line also need a large number of operators to maintain good content and users at both ends, if you can do this two point operators can be called operations.2, operation can make the product full of vitality to get new lifeThe success of a product three points by function, seven by operation. The wine is not afraid of the alley deep years have gone through, who can
The original: Python will be the best programming language in the AI eraPython will be the best programming language in the AI eraMobile Internet instead of PC Internet lead in the forefront of the Internet era, Android and iOS once became the two major mobile Internet application platform, the mobile developer is the first choice of two technologies, HTML5 with its cross-platform advantage in mobile Internet application platform occupies an important position, can be said to be the later home.
combination of this chip with the camera hardware is clearer.Take the Super night view of this function, whether the phone can be better in the dark light shooting, indeed depends on the cell phone itself's photosensitive ability, the larger the size of the sensor, the larger the size of a single pixel, it can enhance the sensitivity of light, to capture more dark details.Even under high-sensitivity, night-time photography is hard to do with dozens of or even 1%-second shutter times, but takes
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