Big Data

Big data and Hadoop are moving in a step-by-step way to bring changes to the enterprise's data management architecture. This is a gold rush, featuring franchisees, enterprise-class software vendors and cloud service vendors, each of whom wants to build a new empire on the Virgin land. Although the Open-source Apache Hadoop project itself already contains a variety of core modules-such as Hadoop Common, Hadoop Distributed File Systems (HDFS), Hadoop yarn, and Hadoop mapreduce--...

Open-source Software, formerly a favorite of technology enthusiasts, is now sweeping the software world. By 2016, open source software will be in the mission-critical software of nearly all the top 2000 companies in the world, according to Gartner. According to Black Duck Software, a source management software maker, there are more than million open source software projects worldwide. 　　Here is the summary of the small series of open source software is able to quickly popularize the ten reasons. Quality According to this year's "Black Duck Open Source software Future" ...

OpenSSL Heartbleed's big fiasco shows no objection to what people have always suspected: just because open source code is just for checking, it doesn't mean it's completely checked out, but it's safe. This is critical because the security of open source software relies entirely on a large number of professionally skilled programmers to detect code and quickly remove or fix code that contains bugs. This is also mentioned in Linus's law Linus: "If you have enough eyes, you can make all the problems come to mind ...

Algorithm one: Fast sorting algorithm is a sort algorithm developed by Donny Holl. In average, sort n items to be 0 (n log n) times compared. In the worst-case scenario, 0 (N2) comparisons are required, but this is not a common situation. 　　In fact, fast sorting is typically faster than the other 0 (n log n) algorithms because its internal loops (inner Loop) can be implemented efficiently on most architectures. Quick sort using divide-and-conquer method (http://www ...)

Http://www.aliyun.com/zixun/aggregation/13461.html ">mongodb 2.6.2 released, the new version greatly improved the query function. MongoDB is a database of distributed file storage, written by the c++++ language, designed to provide scalable, high-performance data storage solutions for Web applications. 　　Its features are high-performance, easy to deploy, easy to use, storage data is very convenient. The main features are: set-oriented storage, ...

In the past, Android development has matured, with Android-related development tools emerging. However, in the face of a variety of new things, do not forget those we use every day a large number of open source library. Here, I would like to introduce to you, in this hard-working family, the most popular developer favorite five Android libraries. 　　Hopefully, by understanding them, you can help with your development efforts. 1. Gson Gson is provided by Google for use between Java objects and JSON data ...

Open source software is the shortest route that can now bring innovation to market. When it comes to the reputation of millions of developers and will download new code under open source licenses for new tasks, you can almost feel the world's technology baseline has been higher. 　　But will the far-reaching effects of open source stop at this moment? Over the past few years, GitHub is one of the most popular cloud-controlled versions and versions of the library service, but gradually, people no longer think so. Recently, at a small meeting, several managers in several companies agreed to collaborate, organize themselves 、...

As the most popular open source database, MySQL is widely used in Web applications and other small and medium-sized projects. However, in many large IT companies, MySQL has gradually deviated from the original open source version after being highly optimized and customized, more like a branch, such as the Webscalesql of Facebook, which was not long ago open source. 　　Recently, Mr. Xiong has published a blog post, from the perspective of large-scale web site architecture development of the changes in MySQL application, here for you to share. This article mainly describes the different and ...

Http://www.aliyun.com/zixun/aggregation/33721.html "What is the performance of the open source graphics driver for the >2014 year under a graphics-intensive program?" Recently, Phoronix tested 65 different GPU uses open source drive OpenGL performance, the test GPU model includes Intel HD Graphics, AMD Radeon, AMD FirePro and NVIDIA GeForce series ...

Http://www.aliyun.com/zixun/aggregation/33721.html ">2014 years of Dockerc++on end, the main page June's feeling is: This is an open source of the event, as well as the event of the sale of Meng." In this two-day conference on a lot of open source of good things, and look at the home page June List: Kubernetes company: Google https://github.com/...

Yesterday, the Docker team announced http://www.aliyun.com/zixun/aggregation/18782.html "> officially released Docker 1.0, and in the blog, Docker positioned itself as" an open platform for distribution applications ". Docker can be packaged and easily deployed on a cloud server, which can be compared to the invention of a container. Containers standardize freight targets, Docker application standardization ...

In the era of data-king, the ability of data mining has become one of the important indexes to measure the competitiveness of enterprises. How to make use of the common large data platform Hadoop, how to choose a suitable enterprise business of the Hadoop distribution has undoubtedly become the enterprise's necessary skills. In this costly exploration process, the top events in the large data industry have undoubtedly become an important cognitive and learning channel for each institution. 　　Here we go into Hadoop Summit 2014. The 2014 Hadoop summit was in the United States from June 3 to 5th ...

The use of data as a competitive asset has rapidly become an important basis for distinguishing between the success and failure of enterprises within the same vertical industry. To be sure, we will soon see that the infrastructure stack for all enterprises in all industries is a key factor in determining the competitive outcome, tresatahttp://www.aliyun.com/zixun/aggregation/5707.html "> 　　Richard Morris, the company's founder and CDO, explained. Tresata Company to help ...

Http://www.aliyun.com/zixun/aggregation/1560.html ">facebook recently on the official blog announced the introduction of the HBase Database upgrade version of--hydrabase, Facebook is a heavy user of hbase, and Facebook's HBase database system stores Many of Facebook's key business data, including internal monitoring systems, search indexing, streaming data analysis, and data capture. Hyd ...

Elon Musk, Tesla's CEO, announced in Thursday that the company would Ilon Masc an "open source Model" to open all patents and encourage other companies to develop advanced electric vehicles. Tesla is seen as the leader in today's electric car market and has a strong presence in the battery, electronics and software sectors, with a total of about 200 patents. 　　Musk said the patents would be open to the outside. "Tesla will not initiate patent lawsuits against any company that has a bona fide use of our technology," he wrote in his blog. ”...

Rangenetworks has introduced the world's most widely used GSM service into the southern rim of Macquarie Island. This communication network is more popular than the walkie-talkie and http://www.aliyun.com/zixun/aggregation/6154.html ">wifi network because it has a wider coverage but less power consumption." Although local communication with the rest of the world is already available via satellite telephones, this model is used primarily in the areas of security and research, local communications and ...

First, open source project TDW introduced Tencent distributed http://www.aliyun.com/zixun/aggregation/8302.html "> Data Warehouse (Tencent distributed, Hereinafter referred to as TDW) is the Tencent Engineering and Technology business group data platform based on open source software research and development of a large processing platform, which is based on Hadoop, Hive, PostgreSQL on top of the research and development, and in ...

On the Hadoop summit, Http://www.aliyun.com/zixun/aggregation/14112.html "Vice president of >hortonworks strategy Shaun Connelly's speech theme really wants to emphasize "business embracing Hadoop in action". Referring to the development of the platform since he joined Hortonworks, Connelly said, "There were not so many people in the meeting before, and now we specialize ...

The advent of Microsoft's Windows operating system has been nearly 29, during which Windows has always been firmly in control of desktop dominance, but with the recent changes in the industry upstream pattern and the vigorous movement of the "geo-discovery" campaign, 　　Windows is facing a threat from multi-directional pluralism, most of which is a threat from open source forces. Careful people should find that although the Windows operating system still occupies more than 90% pc desktop, but its brand influence is less than in the past;

MARIADB10 and MySQL5.6 Community Edition stress tests, see below: Sysbench (10.8.8.43) MySQL5.6 and MariaDB10.0.11 (10.8.8.100) Stress test parameters: machine configuration: Poor, DELL 　　r610,2 4 Core CPU,RAID1 (writeback strategy) 7200 to SAS hard drive. Can obviously see, in high concurrency, MySQL5 ....