Java Wait

Last year in the investigation of a lot of java applications, see some of the phenomenon is the programmer to run on their own environment to read the program rarely lead to troubleshooting problems will be more frustrating, so think of writing this series of articles, procedures To provide functionality to end-users, the code is only one part of it, and it needs to be relied on for jvm, os, server hardware, networking, load balancing, etc. In this series of articles, Several parts, more is only a science role, because os I use are linux, this series ...

There seems to be a plot in a thriller that says, "It's easy ... It's so easy. "And then all things began to fall apart. When I started testing the top-tier Java cloud Computing in the market, I found that the episode was repeating itself. Enterprise developers need to be more concerned about these possibilities than others. Ordinary computer users get excited when there are new scenarios in cloud computing that make life easier. They will use cloud-based emails and if the emails are lost they can only shrug their shoulders because the electrons ...

At present, http://www.aliyun.com/zixun/aggregation/10267.html "> Hand Tour Market, is in the intense phase of multifaceted, Android, iOS provides game services gradually into the mainstream ranks, is an up-and-comer." 　　It has been argued that, under this momentum, the momentum of the Java game is fading, and the future target will be shifted to Android and iOS, is that really the case? Not long ago, China Mobile Gaming user Behavior report, released by Eric, shows that Symbian 、...

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 ...

Openxava is a framework for rapid development of Ajax JAVAEE/J2EE applications, making it simpler. It can define the application by using POJO,JPA and Java 5 annotations and persist the Run-time entity objects to the database. It has a flexible and powerful feature that can be used to build JSR-168 portlet applications, including: liferay,http://www.aliyun.com/zixun/aggregation/13387.html& ...

After the JVM platform is incorporated into the Oracle product line, Oracle will make a number of improvements and adjustments to the JVM platform. Content includes features such as enhanced platform modularity and integration, increased multi-core processing support for Java SE, and increased multi-touch support in Java me. Meanwhile, Oracle Development Vice President Adam Messinger at the Qcon Development Conference, Oracle plans to provide a free version of the JVM based on the new fee version, in the pay version of the JVM integrated hotspot JVM and Jrocki ...

There are many legends in Silicon Valley, where genius, desire, ideals and wealth are gathered. Some companies experience in a few short years has become a field of the big crocodile, there are companies such as meteors in a few years to disappear, is really "its Xing also Bo Yan, its death also suddenly Yan." Here http://www.aliyun.com/zixun/aggregation/7814.html "> stand out from the people, can be called Silicon Valley heroes, what they do really affect the world, the former Silicon Valley hero of the role of Steve Jobs, than ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall today by the school request to the Tripartite employment agreement, from the school back to stay, immediately turn on the computer, Landing just finished the site backstage, and plans in these two days, put all the uploaded articles are uploaded, let it like a decent site. Suddenly feel the eyes sour and a little pain, pick up the computer next to the mirror look, eyeful of blood ...

Spark can read and write data directly to HDFS and also supports Spark on YARN. Spark runs in the same cluster as MapReduce, shares storage resources and calculations, borrows Hive from the data warehouse Shark implementation, and is almost completely compatible with Hive. Spark's core concepts 1, Resilient Distributed Dataset (RDD) flexible distribution data set RDD is ...