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Clear Cloud Network
by Barry Jerrioulis With St. Louis Brodband Specialists, INC.
Social networking is the science and talent of connecting with those who share common interests.
Your ‘network’ is a community that helps keep you united with others and offers many benefits. Networking via
social media sites has revolutionized how we use the Internet and is at the forefront of what we now call Web 2.0.
Facebook is a perfect example of social networking.
People have been “facebooking” each other for about 6 years now, making Facebook the most used social
network with over 443 million users worldwide. But how does Facebook work?
In this article, I will discuss Facebook’s inner workings, covering its architecture
and frontend/backend infrastructure—the basics that hold Facebook together.
How Does Facebook Function?—The
Front End Basics
Facebook uses a ton of services, tools, and programming languages to make up its core infrastructure. At the front
end, their servers run a LAMP (Linux, Apache, MySQL, and PHP) stack with Memcache.
Linux & Apache
This part fairly simple. Linux is a Unix-like computer operating system kernel.
It’s open source, very customizable, and good for security. Facebook runs the Linux operating system on Apache HTTP
Servers. Apache is also free and is the most popular open source web server in use.
You a Facebook
fan and friend? Check out more of this Facebook platform.....
For the database, Facebook utilizes
MySQL because of its speed and reliability. MySQL is used primarily as a key-value store as data is randomly distributed amongst
a large set of logical instances.
These logical instances are spread out across physical nodes and load balancing
is done at the physical node level.
As far as customizations are concerned,
Facebook has developed a custom partitioning scheme in which a global ID is assigned to all data. They also have a custom
archiving scheme that is based on how frequent and recent data is on a per-user basis. Most data is distributed randomly.
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Facebook uses PHP because it is
an excellent web programming language with extensive support and an active developer community and it is good for rapid
iteration. PHP is a dynamically typed/interpreted scripting language.
Memcache is a memory caching system that is used to speed up dynamic database-driven
websites (like Facebook) by caching data and objects in RAM to reduce reading time. Memcache is Facebook’s primary form
of caching and helps alleviate the database load.
Having a caching system allows Facebook to be as fast as it is at recalling your data. If it doesn’t have to
go to the database it will just fetch your data from the cache based on your user ID.
Downsides to Using LAMP
Facebook has realized that there are downsides to using
the LAMP stack. Notably, PHP is not necessarily optimized for large websites and therefore hard to scale. Also, it is not
the fastest executing language and the extension framework is difficult to use.
Mike Schroepfer, Facebook’s Vice President of Engineering, recently did an
interview at Em Tech concerning this. “Scaling any website is a challenge,” Schroepfer said, “but scaling
a social network has unique challenges.”
on to say that unlike other websites, you can’t just add more servers to solve the problem because of Facebook’s
“huge interconnected dataset.” New connections are created all the time due to user activity.
Facebook has grown so quickly that they are often faced
with issues regarding database queries, caching, and storage of data. Their database is huge and largely complex.
To account for this, Facebook has started a lot of open
source projects and backend services.
How Does Facebook Work?—The Back End
Facebook’s backend services are written in a lot of different of different
programming languages including C++, Java, Python, and Erlang. Their philosophy for the creation of services is as follows:
1. Create a service
2. Create a framework/toolset for easier creation of services
3. Use the right programming language for the task
A list of all of Facebook’s open source developments can be found here. I
will discuss a few of the main tools that Facebook has developed.
Thrift is a lightweight remote
procedure call framework for scalable cross-language services development. Thrift supports C++, PHP, Python, Perl, Java, Ruby,
Erlang, and others. It’s quick, saves development time, and provides a division of labor of work on high-performance
servers and applications.
Scribe (log server)
Scribe is a server for aggregating log data streamed in real-time from many other servers. It is a scalable framework
useful for logging a wide array of data. It is built on top of Thrift.
Cassandra is a database management system designed to
handle large amounts of data spread out across many servers. It powers Facebook’s Inbox Search feature and provides
a structured key-value store with eventual consistency.
Clear-Cloud.com is a Mobile Device Broker reseller and Trainer Channel. Mobile professional buyers can source commercial
surplus inventory (i.e, Enterprise-Corporate Off-Loads) and government surplus assets in an online environment. Bulk
lots are sold by the truckload, pallet, or small package, and conditions range from new in a box to customer returns and used.
Our wide variety of product categories includes Smartphones, Laptops, Tablet PCs, Netbooks, eReaders, mobile Hotspot
devices, and more.
These units are "Like New" - Fully tested and functional, with no cosmetic or display defects. Excellent
condition all around. This Grade applies to approximately 95% of our Liquidation offerings.
Light Use (B)
These units have very light scratches and minor
cosmetic blemishes. These are fully tested and functional, with no display defects.
These units have some very small scratches or scuffs. These are fully tested and functional units with no
4GB 7” capacitive multi-touch touchscreen Tablet Android 4.0 camera,
3G New Min order 44 Price per unit $110.00 Off-loaded to
Enterprise-Corporate liquidation channels. Original acquisition was 334 units. Now 77 left. If interested email us at firstname.lastname@example.org or call 1-661-670-6092. Min order
is 44 Tablets. Prior Enterprise owner was Allstate Insurance, Chicago, Il....USA only, NO foreign orders accepted.
Like New - 8GB 7" capacitive
touchscreen Tablet Android 4.0 webcam, 3G Min order 97 units, $46.75 per Tablet Prior owner of lot was Farmers Insurance San Francisco, Ca. A very
popular Tablet...an easy sell on your website, or, locally via swap meets. Original acquisition was 884 units. Now 122
left. If interested email us at email@example.com or call 1-661-670-6092. Min order
is 97 Tablets. Prior Enterprise owner was Farmers Insurance, Austin, Texas....USA only, NO foreign orders accepted.
Verizon Mobile hotspot; Corporate-Enterprise
Off-load, Frys Computers Inc (prior lot owner was Frys.com, USA) 368 units left; min order 411 units, $9.22 each. An excellent
choice....sell locally or on your blog or website...make an easy $35 per to $55 per sale....very popular with businesses and
consumers. Original acquisition was 1,274 units. Now 868 left. If interested email us at firstname.lastname@example.org or call 1-661-670-6092. Min order
is 411 Verizon Mobile Hotspots. Prior Enterprise owner was Frys.com Woodland Hills, Ca....USA only, NO foreign orders accepted. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Panasonic 3D Blu-ray player
Semi New - Min order 397 units, $23.75 per Blu-ray player Prior owner of lot was Pacific Premier, LA Ca. A very popular Blu-ray player...an easy sell on your website, blog, or, locally via swap meets. Original acquisition was 884 units. Now
977 left. If interested email us at email@example.com or call 1-661-670-6092. Min order is 397 Blu-ray players. USA only, NO foreign orders accepted. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ C Grade Dell Laptops original MSRP $2106
SEE IMAGE BELOW
Original Enterprise owner of this lot was 3M Corporation, Dallas Texas Lot acquisition was 3,345 units....min order is 419 Laptops.....$113.55 each. C Grade Dell Laptops original MSRP $2106 Corporate-Enterprise Off-load, 3M Corporation,
Dallas Texas (prior lot owner
was 3M Corporation, Dallas Texas USA) 211 units left; min order 419 units, $113.55 each. An excellent choice....sell locally
or on your blog or website...make an easy $255 per sale....very popular with businesses and consumers. Original acquisition was 3345 units. Now 211 left. If interested email
us at firstname.lastname@example.org or call 1-661-670-6092. Min order is 419 C Grade Dell Laptops. Prior Enterprise owner was 3M corporation Dallas Texas....USA only, NO
foreign orders accepted. ++++++++++++++++++++++++++++++++++++++++++++++
T-Mobile Samsung T679 Exhibit II 4G Prepaid Android Smartphone (UNLOCKED) (SEE IMAGE BELOW) Min 193 units $36.75
each Original Enterprise owner
of this lot was SEARS CORP. NEW YORK, Lot acquisition was 1323 units....min order is 193 Units.....$36.75 each. (An excellent choice....sell locally or on your blog or website...make
an easy $98 to $133 per sale....very popular with businesses and consumers) If interested email us at email@example.com or call 1-661-670-6092. USA only, NO foreign orders accepted.
With the huge proliferation of Mobile
Devices and Mobile Cloud Computing...the Enterprises-Corporates we work with are now putting thousands of VALUABLE Mobile
Devices onto the IT Asset Disposal pipeline.
For example, Hertz Intl in New York just released 1,183 business Laptops
from HP...onto the IT Asset Disposal Off-Load channel.
These are like new devices - used by their employees only for 122 days. They have embedded 4G Broadband modem, 4GB
Ram, quad core CPU, optical drive; 7500 rpm 2TB hard drive...Windows Professional 7.....wifi
802.11 n.....17.6 wide screen...and Bluetooth.
These devices are available to our Brokers for $38 each...on Amazon and eBay the same models sell for
$198 to $337 every day. So there is lots of room for profits....but the new Broker has to realize that the units can only
be acquired by lot-batches of (usually) minimum 110 to 127.
The units have their hard drives scrubbed...then a new version of the op sys is installed....and
usually the basic set of business applications.
We have found - without a doubt - that our most successful Brokers make the most money by performing
FACE-TO-FACE sales...that is, at swap meets, flea markets, and by the Broker placing small cheap ads in the local newspaper....this
is much easier and BETTER than selling on the web....because...we show how, once you make a face-to-face sale, you gain a
long term repeat client.
Dell Laptops Dell Laptops Latitude business laptop original MSRP $1106
SEE IMAGE ABOVE Original Enterprise owner of this lot was Sears Corp Boston Ma
Lot acquisition was 5,895 units....min order is 106 Laptops.....$55.99 each. Corporate-Enterprise Off-load, Sears Corp Boston
(If interested email us at firstname.lastname@example.org or call 1-661-670-6092. USA only, NO foreign orders accepted. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Dell Laptops business
SEE IMAGE BELOW Original Enterprise owner of this lot was Sears USA, New York, NYC
Lot acquisition was 4335 units....min order is 77 Laptops.....$66.99 each. Dell Latitude Laptops
original MSRP $499.00 Corporate-Enterprise
Off-load, Boston Ma
(An excellent choice....sell locally or on your blog or website...make an easy $114 to $255 per sale....very popular
with businesses and consumers) If
interested email us at email@example.com or call 1-661-670-6092. USA only, NO foreign orders accepted.
Dell Laptops business
RIM Blackberry Curve 3G 9330 Smartphone (SEE
IMAGE BELOW) Min 186 units $38.65 each Original Enterprise owner of this lot was Sears Corp El Paso Tx. Lot acquisition was 1266 units....min order is 186 units.....$38.65
each. (An excellent choice....sell
locally or on your blog or website...make an easy $177 to $229 per sale....very popular with businesses and consumers) If interested email us at firstname.lastname@example.org or call 1-661-670-6092. USA only, NO foreign orders accepted.
SEE IMAGE BELOW
Get with it....Now! Realize that today many, many,
many of “yesterday’s jobs” are going bye..bye....... Why? Because of super smart cloud based algorithms, advanced cloud computing concepts, and
AUTOMATION. You can join www.clear-cloud.com in the Mobile Cloud Computing Revolution (email us at email@example.com) …..you can easily make over $2K weekly
by acquiring the Enterprise-Corporate semi-new Mobile Devices at pennies on the dollar, and then selling these devices at
your regional-local swap meets....clearing (without breaking a sweat) an average of $100 per sale.....and remember....the
HUGE American “underground economy” is $7.7 Billion dollars, (i.e., swap meets!) and is growing....weekly.....
Dell Business Laptop MSRP $588
Min lot buy is 51 units...price per laptop is $71.22 This ultramobile 13” business laptop offers vital security
features and 3rd Gen Intel® Core™ processors. Stay protected, boot up and load apps in a flash. Dell Laptops Vostro 3360 (SEE IMAGE BELOW) businesslaptops SEE IMAGE BELOW Original Enterprise owner of this lot was Sears USA, Chicago, Lot acquisition was 4935 units....min order is 51 Laptops.....$71.22 each. (An
excellent choice....sell locally or on your blog or website...make an easy $214 to $275 per sale....very popular with businesses
and consumers) If interested
email us at firstname.lastname@example.org or
call 1-661-670-6092. USA only, NO foreign orders accepted. ++++++++++++++++++++++++++++++++++++
What You Get When You Enroll In the Clear-Cloud
How To Be A Mobile Device Broker
Up to date training in latest techniques for success in the HUGE market of reselling Enterprise-Corporate semi-new valuable Mobile Devices. Such as Notebooks, Netbooks,
Smartphones, Android Tablets, Mobile Hotspots, and more.
Your own personal Mobile Device Broker Instructor-Mentor. He will guide you each
step of the way - from how-when to acquire the Enterprise-Corporate Mobile Device Off-Loads....then, how to effectively sell
them on your Blog and, or your Website. Your Broker Mentor-Instructor will also show you how-when to commence your participation
in the $7.7 Billion Dollar “USA Underground Economy.” What’s that mean ? you ask....well, it’s 100%
legal! It means selling the Mobile Devices you’ve acquired at local and regional SWAP MEETS. It is huge, and easy and fun too! Your Instructor will guide you through every step.
As a Registered Mobile Device Broker
you gain the ability to acquire the semi-new, in demand Mobile Devices from us (Clear-Cloud.com) or via the many powerful,
trusted Web Sites that carry the Enterprise-Corporate Mobile Device Liquidation Off-Loads. At prices literally “pennies
on the dollar.” Then you’ll sell each Mobile Device you’ve acquired at VERY handsome profits.
We at Clear-Cloud will also help you to “spruce up” your Blog and-or Web Site....to announce
to the world, effectively, your Status as a Registered and Professional Mobile Device Broker.
Yes, you CAN fairly easily make around
$2000 to $5000 weekly doing this.
HipHop for PHP is a source code
transformer for PHP script code and was created to save server resources. HipHop transforms PHP source code into optimized
C++. After doing this, it uses g++ to compile it to machine code.
In a basic package, that’s Facebook. This post could easily be 69 pages longer
if I were to go into more detail, but to answer the question “How does Facebook work?” I think this will do ok.
If you look past all of the features and innovations the main idea behind Facebook is really very basic—keeping people
Facebook realizes the power of
social networking and is constantly innovating to keep their service the best in the business.