The release of the Java version of almost all platforms involves all aspects of the Java language itself and the JVM. So for Java 7, from the JSR draft, we get the high-level goal of Java 7: Compatibility--Any program that runs on previous versions must be able to run in Java SE 7 without making any changes; development efficiency--improve development efficiency, minimal learning curve; performance--New parallel API Interface, introduces a real asynchronous I/O AP ...
As we all know, Java in the processing of data is relatively large, loading into memory will inevitably lead to memory overflow, while in some http://www.aliyun.com/zixun/aggregation/14345.html "> Data processing we have to deal with massive data, in doing data processing, our common means is decomposition, compression, parallel, temporary files and other methods; For example, we want to export data from a database, no matter what the database, to a file, usually Excel or ...
Excelsior JET is an enhanced Java Virtual machine with advanced compilers and deployment kits. It works with Java-compatible Windows and Linux x86 hardware, and its optimizer can transform classes and jar files into high-performance binary executables. Its operating environment includes the sun implementation of the authorized Java API, as well as http://www.aliyun.com/zixun/aggregation/16544.html ">exc ...
Take the XX data file from the FTP host. Tens not just a concept, represents data that is equal to tens of millions or more than tens of millions of data sharing does not involve distributed collection and storage and so on. Is the processing of data on a machine, if the amount of data is very large, you can consider distributed processing, if I have this experience, will be in time to share. 1, the application of the FTP tool, 2, tens the core of the FTP key parts-the list directory to the file, as long as this piece is done, basically the performance is not too big problem. You can pass a ...
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 ...
Excelsior jet is an enhanced Java Virtual machine with advance compilers and deployment kits. It works with Java-compatible Windows and Linux x86 hardware, and its optimizer can transform classes and jar files into high-performance binary executables. Its operating environment includes the sun implementation of the authorized Java API, as well as http://www.aliyun.com/zixun/aggregation/16544.html ">exce ...
Sc++a Java runtime consists of core and extension. Core is essentially a wiring engine for multiple VMs. The engine uses the IOC (control reversal) and Di (Dependency injection) principles to connect components. Core core is simple and limited in performance. It connects functional units together and provides SPI mechanisms that can interact with extension. Such features as service discovery, reliability, and support for transport protocols are done through extension. Extension ...
Fastinfoset as a standard XML serialization means, the XML on the basis of the compression to achieve excellent support, but the lack of direct reading tools, the user caused a certain difficulty, the use of notepad++ plug-in function and Java JNI technology, combining the characteristics of both Directly to the Fastinfoset file in the notepad++ open, to solve the user two times the trouble of editing, but also fully use notepad++ to edit the XML file ...
Smallsql is a pure Java http://www.aliyun.com/zixun/aggregation/22.html "> Relational database Management system compatible with JDBC 3.0 and ANSI SQL 92/99 specifications." It is a small and fast database engine, but does not provide a network interface. Smallsql is a 100%-pure Java DBMS, an embedded relational database for Java desktop applications ...
Windows Azure provides a highly scalable storage mechanism for storing structured and unstructured data, known as Windows Azure Storage. Windows Azure Storage provides a development interface for the REST-based Web Service. This means that any programming language under any platform can access Windows Azure Storage by this development interface as long as it supports HTTP communication protocols. Of course...
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