Expression Array Definition

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 ...

2010 should be remembered because SQL will die this year. This year, the relational database is on the verge of falling, and this year developers found they no longer needed long, laborious columns or tables to store data. 2010 will be the starting year for document databases. Although this momentum has lasted for many years, it is now the era of more and broader document-based databases. From cloud-based Amazon to Google, a large number of open source tools, and the ensuing CouchDB and MongoDB. So what is MongoD ...

The road to computer science is littered with things that will become "the next big thing". Although many niche languages do find some place in scripts or specific applications, C (and its derivatives) and Java languages are hard to replace. But Red Hat's Ceylon seems to be an interesting combination of some language features, using the well-known C-style syntax, but it also provides object-oriented and some useful functional support in addition to simplicity. Take a look at Ceylon and see this future VM ...

According to the latest figures disclosed by the three major domestic operators, China's mobile phone subscribers have reached 987.58 million by January 2012, approaching the 1 billion mark. According to CNNIC's latest survey, as of June 2012, 15.3% of the mainland's 538 million netizens did not use PCs (desktop computers) or use NB (laptops) to surf the internet, using only mobile phones. The phenomenon comes from the spread of the internet to some people who are inconvenient to use PCs or NB, the brick family explains. Read full text smartphone features more and more ...

Artistic Style 2.02.1 This version to increase translation support. The definition of the bracket is redesigned to simplify the user interface: The predefined style option is changed to the Bracket style option, and bracket options is simplified. Several new bracket styles were added. UTF-16 encoded files (in the Visual Studio Standard) can now be formatted. Many other improvements and bug fixes. Artistic style is ...