Increase Tomcat Memory

The current server commonly used memory mainly has three kinds of 1.ECC memory, "error Checking and correcting" shorthand, Chinese name is "error check and correction." General INTEL3XXX Series motherboards Use this memory strip 2. REG-DIMM with registers register chip and unbuffered ECC without cache with regist ...

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 ...

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 ...

PaaS (Platform-as-a-service) is a kind of cloud service, the service provider not only provides on-demand hardware and operating system services, but also provides the application platform and solution stack. For developers, PAAs greatly reduces the cost and pain of it deployments, providing resources for applications to scale more easily as needed. JVMs, application servers, and deployment packages (for example, war and ear) provide natural isolation for Java applications, allowing different developers to deploy applications in the same infrastructure, so JAV ...

Now almost any application, such as a website, a web app and a mobile app, needs a picture display function, which is very important for the picture function from the bottom up. Must have a forward-looking planning picture server, picture upload and download speed is of crucial importance, of course, this is not to say that it is to engage in a very NB architecture, at least with some scalability and stability. Although all kinds of architecture design, I am here to talk about some of my personal ideas. For the picture server IO is undoubtedly the most serious resource consumption, for web applications need to picture service ...

There are significant differences in performance, complexity, and speed between Amazon and Windows Azure,iaas cloud. The information on the cloud is always quite simple: hand over your worries, IT managers and we will help you solve everything. Forget to install the server and the engine backup that needs to be double-clicked, and don't worry about thousands of things going wrong. Just give us your credit card number and your data and we can do everything for you. In the past few months, I have been living in a dream, where I built a huge computer king across the world ...

The Ubuntu 8.10 Server version includes cloud computing, virtualization, enhanced mail servers, Java development and deployment, and more services to assist system administrators and developers, and rapid hair cycles enable them to quickly integrate new features 　　This makes the Ubuntu operating system the best choice for innovative enterprises. October 29, 2008 International report, Ubuntu 8.10 Server Edition has been released, and on the basis of the original to increase the virtualization, Java development and system management functions, through a number of enhancements to meet users ...

Read the previous reports, and from the perspective of the architecture of Netflix's large-scale Hadoop job scheduling tool. Its storage is mainly based on the Amazon S3 (simple Storage Service), using the flexibility of the cloud to run the dynamic adjustment of multiple Hadoop clusters, today can be a good response to different types of workloads, This scalable Hadoop platform, the service, is called Genie. But just recently, this predator from Netflix has finally unlocked the shackles of ...