Realm Object Server

"Cloud" is not only a metaphor for those networked computers, but also a computational process of data that is hidden from the server as you need it, carving out the one you need from the big cloud. It's a very romantic metaphor. Cloud computing is an emerging business computing model. Using high-speed Internet transmission capabilities, data processing is moved from personal computers or servers to computer clusters on the Internet. These computers are very common industrial standard servers, managed by a large data processing center, data centers in accordance with the needs of customers to allocate computing resources to achieve with supercomputing ...

In the past few years, the innovative development of the open source world has elevated the productivity of Java™ developers to one level. Free tools, frameworks and solutions make up for once-scarce vacancies. The Apache CouchDB, which some people think is a WEB 2.0 database, is very promising. It's not difficult to master CouchDB, it's as simple as using a Web browser. This issue of Java open ...

In addition to madness, there is no other words to describe bitcoin, from 2008 just came out of the attention, but this also hangs the machine to burn the graphics card, I did not go to do, early play a number of indeed a lot of rich, and today comparable to the price of gold is not expected. 　　What is the impact of Bitcoin on the online world and the real world, and where will the future go? The bit-currency ecological thinking of digging mine the money generated by the coin is dug, in the real world is the miners and coal bosses, the rich tyrants can do a bit of the world's coal bosses, and small players are forced to the miners. Many people buy ...

(Author Srini penchikala translator Dingxuefeng) for non-relational data types such as documents, object graphs, and key-value pairs, the NoSQL database provides them with an alternative way to store data. Can distributed caching be used as a NoSQL database? Ehcache's Greg Luck author describes the similarity between distributed caching and NoSQL databases. Infoq interviewed him and discussed the pros and cons of the scheme. InfoQ: Can you do a distributed caching solution with the NoSQL database ...

In large data technology, Apache Hadoop and MapReduce are the most user-focused. But it's not easy to manage a Hadoop Distributed file system, or to write MapReduce tasks in Java. 　　 　　Then Apache hive may help you solve the problem. The Hive Data Warehouse tool is also a project of the Apache Foundation, one of the key components of the Hadoop ecosystem, which provides contextual query statements, i.e. hive queries ...

Disseminate his effective user interface design principles through print media and attending seminars. Later in this article, he has already imparted his opinion to user Experience World tour. Nielsen has a Ph. D. and is also a user advocate and head of Nielsen Norman Group (Nielsen Norman Group is Dr Donald A. Norma, a former research associate with Apple Computer.