Why We Use Spring Framework In Java

Multithreading is the problem that programmers often face in the interview, the level of mastery and understanding of multithreading concept is often used to measure a person's programming strength. Yes, ordinary multithreading is not easy, then when multithreading encounter "elephants" will produce what kind of sparks? 　　Here we share the Java thread Pool management and distributed Hadoop scheduling framework with 严澜, the Shanghai Creative Technology director. Usually the development of the thread is a thing, such as Tomcat in the servlet is the threads, no thread how we provide more ...

Usually the development of the thread is a thing, such as Tomcat is a servlet in the threads, there is no thread how do we provide multi-user access? But many developers who have just started to touch threads have suffered a lot. 　　How to do a set of simple threading Development Mode framework for everyone from the single thread development into multithreaded development, this is really a relatively difficult project. What is the specific thread? First look at what the process is, the process is a system executed a program, this program can use memory, processor, file system and other related resources ...

This article is my second time reading Hadoop 0.20.2 notes, encountered many problems in the reading process, and ultimately through a variety of ways to solve most of the. 　　Hadoop the whole system is well designed, the source code is worth learning distributed students read, will be all notes one by one post, hope to facilitate reading Hadoop source code, less detours. 1 serialization core Technology The objectwritable in 0.20.2 version Hadoop supports the following types of data format serialization: Data type examples say ...

This is the second of the Hadoop Best Practice series, and the last one is "10 best practices for Hadoop administrators." Mapruduce development is slightly more complicated for most programmers, and running a wordcount (the Hello Word program in Hadoop) is not only familiar with the Mapruduce model, but also the Linux commands (though there are Cygwin, But it's still a hassle to run mapruduce under windows ...

In fact, for the different needs of enterprise users in the application management solution deployment and delivery model, Blue Ocean provides two product and service delivery modes: The traditional software licensing model (Blueware) and the Cloud based SaaS model (ONEAPM). Blueware mainly for traditional large enterprises, while ONEAPM mainly for Internet enterprise developers. With ONEAPM, developers can increase development speed, release applications faster, and pinpoint bottlenecks in the usage experience. According to the introduction of Blue Ocean News, ONEAPM ...

Absrtact: Dot Cloud is by far the most attractive platform for service products. It is of great concern, especially given the ambitious vision it has put forward. If everyone's application needs ruby resources and some support for node.js, Heroku should be the first choice to override other platforms, the service offerings. Although the current holder is Salesforce.com (which is also a big annoyance to VMware), Heroku is still worthy of the title of the second generation cloud platform ...

Open source Hotspot Inventory 1984, Richard Stallman launched GNU and Free Softwarefoundation, which has been open source for more than 28 years. From the bottom of the operating system to advanced desktop applications, there are open source footprint. Linux, which is especially open source operating system, is a controversial issue and is subject to many commercial attacks. 　　Many people like to put open source and business together, to accuse Open source is how "irregular", "energy consumption", "instability" and so on, especially Microsoft. Talk about ...

The Cloud foundary 2012 Cloud Developer Conference was held at Sheraton Beijing Great Wall Hotel on March 28. As the industry's most watched open source PAAs platform in China, Cloud Foundry has attracted the attention of many industry and developers. 　　As a result, Mark Lucovsky, the vice president of Vmware Cloud Foundary Software Engineering, is again being watched. Speaking of Mark Lucovsky (Mark), perhaps everyone has heard of the story of throwing chairs. ...

Cloud vendors are telling with virtual computing providers that the cloud is a seamless process. Life tells us that being too violent out of an internal data center or deploying to the cloud is a more complicated way. Because everything from the deployment process to the way things are applied to monitoring, debugging, and so on, can be adjusted to different. Of course, with the increasing use of the problem also arises. As we move further toward cloud computing, these problems can be avoided if we have some experience. Especially when we have a chance to learn some cases. Well, next ...

Cloud computing has different meanings for different people. Business people see it as a way to save costs and achieve strategic goals; Technology experts see it as another "toy" for the cool, which developers see as an opportunity. As cloud computing continues to evolve, more companies are starting to dabble in cloud-based development environments, and cloud strategies are increasingly popular with early adopters. According to the Java Trends Survey, 34% of the respondents have already joined the cloud, 17% are planning to invest within 15 months, 19% are considering cloud-based technology, but there is no immediate implementation ...