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 ...
With the rapid development of mobile Internet, the concept of front-end has changed a lot, and has not been limited to the web end. The Android system as the leader of the smartphone market, as a front-end development engineer, very necessary to understand and learn. But in the face of many learning materials, standing in front of the role of development engineers, how to pick out the right way to learn quickly, without wasting a lot of time to grope, the series of articles hope to help small partners. The article will pick a few actual examples throughout the series, involving Java, Android ...
REVIEW: With open source programming tools, you can easily learn, modify, and improve the quality of your code based on open source licenses. This article collected 11 of the most popular and valuable open source programming tools. May give you a little surprise. Let's see it together NO.1 Rhomobile Rhodes Ruby may be the second most popular language on Github, if you want to use it to develop the iPhone may not be for you ...
The following small series summarizes 10 best data mining tools for everyone, which can help you analyze big data from various angles and make correct business decisions through data.
This paper first briefly introduces the background of biginsights and Cloudera integration, then introduces the system architecture of Biginsights cluster based on Cloudera, and then introduces two kinds of integration methods on Cloudera. Finally, it introduces how to manage and apply the integrated system. Cloudera and IBM are the industry's leading large data platform software and service providers, in April 2012, two companies announced the establishment of a partnership in this field, strong alliances. Cl ...
First, the Hadoop project profile 1. Hadoop is what Hadoop is a distributed data storage and computing platform for large data. Author: Doug Cutting; Lucene, Nutch. Inspired by three Google papers 2. Hadoop core project HDFS: Hadoop Distributed File System Distributed File System MapReduce: Parallel Computing Framework 3. Hadoop Architecture 3.1 HDFS Architecture (1) Master ...
Developing spark applications with Scala language [goto: Dong's blog http://www.dongxicheng.org] Spark kernel is developed by Scala, so it is natural to develop spark applications using Scala. If you are unfamiliar with the Scala language, you can read Web tutorials a Scala Tutorial for Java programmers or related Scala books to learn. This article will introduce ...
The 2007 World Wide Web Consortium Project HTML5, until the end of October 2014, the eight-year specification finally formally sealed. Over the past few years, HTML5 has subverted the pattern of PC Internet and optimized the experience of mobile Internet, and then HTML5 will subvert the native app world. This may sound alarmist, but if you take a serious look at the history of HTML5, you will find that this is the world's trend indeed. Know history to predict the future, first let us see why the birth of HTML5, these 8 years is how to come. One...
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