Cloud Computing Week Jevin Review (2.27-3.3)

Peak Duel: hypertable (c + +) throughput Test win HBase (Java)

As we all know, in 2006 Google unveiled its own bigtable paper, another innovation in Google's two innovations following GFS and MapReduce, which has a huge technical advantage in designing management-structured data for mass data processing. and Hypertable and HBase are the most well-known two based on the bigtable design of the database, they differ in hypertable based on C + +, and hbase based on Java. The performance of both databases has been a hot topic of debate. In the most recent one-off Test, Hypertable has overwhelmed hbase by twice times the performance advantage in the throughput test.

Hacker story: 12 months to create a Facebook open source server

Amir Michael in Faceobook's server lab

Facebook is helping Internet companies remove expensive and unnecessary components to cut costs, redesign power supplies, motherboards and cooling systems, and share them with everyone, from Open-source servers to data centers until just now announcing open source storage solutions. Wired correspondent Cade Metz, who interviewed Facebook's system engineering manager Amir Michael, gave us a picture of the birth of the Facebook open source server and data center. It's hard to imagine that Michael and his team have done it in just 12 months.

Five free lightweight Linux distributions

It is well known that open source operating systems such as UNIX and Linux have achieved great success. One important reason for the popularity of Linux may be that its distribution can meet different audiences.

Today we're going to introduce you to five free lightweight Linux distributions.

Damn Sgt Linux

Official website: http://www.damnsmalllinux.org/

Linux Mint

Official website: http://www.linuxmint.com/

Puppy Linux

Official website: http://www.puppylinux.com/

Slitaz

Official website: http://www.slitaz.org/

Tiny Core Linux

Official website: http://distro.ibiblio.org/tinycorelinux/welcome.html

Facebook will "open source" its storage system

Open source is becoming a more and more important form of collaboration without managers, punishments, and mistakes. For a common ideal and efforts, Linux, Wikipedia is the crystallization of this collaboration. Facebook wants to extend open source to servers, storage and even data centers, eliminating expensive and unnecessary components to cut costs, and businesses don't have to feed the parasites. Dell, Netflix, and Rackspace are all involved in this project.

After Facebook set up its own data center and server, it began to dabble in the storage system, serving its 845 million users. "We removed the expensive and unnecessary components of the server," said Frank Frankovsky, the Facebook hardware architect. Frankovsky called the "vanity Free", and now they're going to use these ideas for storage systems.

"We only keep parts that are directly valuable: hard drives and software," says Frankovsky. Unfortunately, the hard drive is often damaged, so (we hope) to quickly confirm the bad hard drive and replace it.

IBM says quantum computer research has made major breakthroughs

Scientists at the IBM Research department say they have made significant progress in quantum computing, and engineers are now ready to start developing fully functional quantum computers.

This technological breakthrough allows scientists to reduce data error rates in initial calculations while maintaining the integrity of quantum mechanical properties in quantum bits (qubits).

The creation of a quantum computer means that the data processing capacity will be many times higher than the current conventional processor, says Mark Ketchen, physical information director at the IBM TJ Watson Research Center at the York Yorktown Heights, N.Y., USA.

Like today's traditional digits, qubits have two possible values: A0 or A1. The difference is that a digit must be 0 or 1, whereas a qubit can be 0, 1, or a superposition of both.

"If we take two qubits, we can get 00, 01, 10, and 11 at the same time," Ketchen said. If you take 3 qubits, you can have 8 states (000, 001, 111, etc.) at the same time. With each additional qubit, the number of States can be doubled at the same time. This is partly the reason why quantum computers are more powerful. ”

Manufacturers to mark Dropbox: Cloud storage China pitched

Jinshan software will own two or three years of snow hidden "Jinshan fast" pushed to the front desk. February 21, Jinshan Software announced the establishment of a separate subsidiary of Jinshan Cloud, will originally belong to Jinshan software fast disk business as the core business of Jin Shanyun. After the break-up, Kingsoft software only left WPS Office software products.

Over the past year, the American originator of cloud storage Dropbox is the star of Silicon Valley in the United States. A small team of dozens of people made a 4-year valuation of the business to 10 billion dollars. 2011, Apple also launched its own cloud storage products--icloud. Steve Jobs, Apple's former CEO, icloud the "Next great vision" product.

As a result, cloud storage has become the domestic Internet, telecommunications and other enterprises of the military battleground. Jinshan, Tencent, 360, Ali, Huawei, Lenovo, China Mobile and other giants have entered, even cool plate, 115 network plate and other small and medium-sized start-up companies have plunged into the industry.

But at present, a lot of domestic cloud storage vendors research and development investment in almost tens of millions of yuan level above, and the revenue is only hundreds of thousands of yuan or even millions of yuan level, some cloud storage vendors even basically no revenue.

Dropbox: An industry subversive or a flash in the pan?

Farhad Manjoo, the tech blogger PandoDaily, again last weekend reiterated jobs ' view of Dropbox as a "function or product":

Dropbox is a great file synchronization application, and its founder Drew Houston and team members have paid a lot of money, but is Dropbox really a 40 billion dollar company? I have a deep suspicion. When I heard that some people, such as Bill Gurley of benchmark, called Dropbox "subversive", I didn't know if they were dazzled by the convenience services that Dropbox provided.

Dropbox is gorgeous and supports almost all the relevant clients. But according to the Manjoo experience, this kind of support is not perfect. Dropbox, he writes, often encounters operating system and application problems.

Posterous co-founder and venture capitalist Garry Tan said Third-party apps without hardware integration with Apple would be in trouble.