Ruby Domain Specific Language

Groovy is a burgeoning Java 2 platform language. Groovy code can be combined well with Java code to extend existing code. The current Groovy version is 1.6.3, available on both Java 1.4 and Java 5 platforms, and can also be used on Java 6. Groovy is an alternative language for the JVM-alternative is to use groovy on the Java Platform Java programming, the use of basic and use ...

Groovy is a burgeoning Java 2 platform language. Groovy code can be combined well with Java code to extend existing code. The current Groovy version is 1.6.3, available on both Java 1.4 and Java 5 platforms, and can also be used on Java 6. 　　Groovy interface Features: An agile dynamic language based on Java virtual machines. Built on top of the powerful Java language and added from Python, ...

In Serengeti, there are two most important and most critical functions: one is virtual machine management and the other is cluster software installation and configuration management. The virtual machine management is to create and manage the required virtual machines for a Hadoop cluster in vCenter. Cluster software installation and configuration management is to install Hadoop related components (including Zookeeper, Hadoop, Hive, Pig, etc.) on the installed virtual machine of the operating system, and update the configuration files like Namenode / Jobtracker / Zookeeper node ...

Groovy is a JVM based Agile development language that combines many of the powerful features of Python, http://www.aliyun.com/zixun/aggregation/13430.html, >ruby, and Smalltalk. The main features of Groovy include: An agile dynamic language based on a Java virtual machine. Built on the powerful Java language and added from Python,ruby and Smalltalk ...

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 ...

An architect is a new career in the software industry that translates customer needs into normative development plans and texts during a software project development process, and develops the overall architecture of the project, directing the entire development team to complete the program. The architect's main task is not to engage in the preparation of specific software programs, but to engage in a higher level of development architecture. He must be very knowledgeable about development technology and need to have good organizational management skills. 　　It can be said that the quality of an architect's work determines the success or failure of the entire software development project. The architect is actually the total of the software ...

Justin James has published a blog post "Tips for advancing from a beginner to a intermediate developer", and we share how to complete the programmer from the beginning to the intermediate transformation, Here translated a turn, hope to help you. In a message exchanged with TechRepublic members, he mentioned blogs, articles and magazines for programmers ...

Summary: Semwatch data loss, before I wrote a few articles are gone. Although a snapshot from Baidu and other ways can be restored, but they do not feel the need, because it is a few months ago to write something. Especially in their own blog, every few months will be the previous Semwatch data loss, before I wrote a few articles are gone. Although a snapshot from Baidu and other ways can be restored, but they do not feel the need, because it is a few months ago to write something. Especially in their own blog, every few months will be the previous article deleted, because every once in a while looking back when ...

Intermediary transaction SEO diagnosis Taobao guest Cloud host technology Hall Semwatch data loss, before I wrote several articles are gone. 　　Although a snapshot from Baidu and other ways can be restored, but they do not feel the need, because it is a few months ago to write something. 　　Especially in their own blog, each after a few months will be deleted before the article, because every once in a while looking back at the point of view of SEO, the evaluation is: general. So reopen the article and write something deeper: I've come from the touch of SEO to now, ...

As an important form of cloud computing, IaaS services have a wide range of open source and commercial cloud platform scenarios. This article is based on the use of open source IaaS cloud platform to develop public and private cloud management platform perspective, introduced and compared eucalyptus, Opennebula, Cloudstack and OpenStack, such as open source IaaS cloud platform. The characteristics of the successful cloud platform from AWS AWS is the most successful cloud computing platform, the most important feature of the system architecture is to open the data and function through the Web service interface.