Group items tagged

"Data Connector for Oracle and Hadoop is the fastest, most scalable way to transfer data between Oracle and Hadoop. "

"HDF (Hierarchical Data Format) technologies are relevant when the data challenges being faced push the limits of what can be addressed by traditional database systems, XML documents, or in-house data formats. Leveraging the powerful HDF products and the expertise of The HDF Group, organizations realize substantial cost savings while solving challenges that seemed intractable using other data management technologies. Many HDF adopters have very large datasets, very fast access requirements, or very complex datasets. Others turn to HDF because it allows them to easily share data across a wide variety of computational platforms using applications written in different programming languages. Some use HDF to take advantage of the many open-source and commercial tools that understand HDF. Similar to XML documents, HDF files are self-describing and allow users to specify complex data relationships and dependencies. In contrast to XML documents, HDF files can contain binary data (in many representations) and allow direct access to parts of the file without first parsing the entire contents. HDF, not surprisingly, allows hierarchical data objects to be expressed in a very natural manner, in contrast to the tables of relational database. Whereas relational databases support tables, HDF supports n-dimensional datasets and each element in the dataset may itself be a complex object. Relational databases offer excellent support for queries based on field matching, but are not well-suited for sequentially processing all records in the database or for subsetting the data based on coordinate-style lookup."

 Ø  The socket library that acts as a concurrency framework.  Ø  Faster than TCP, for clustered products and supercomputing.  Ø  Carries messages across inproc, IPC, TCP, and multicast.  Ø  Connect N-to-N via fanout, pubsub, pipeline, request-reply.  Ø  Asynch I/O for scalable multicore message-passing apps.  Ø  Large and active open source community.  Ø  30+ languages including C, C++, Java, .NET, Python.  Ø  Most OSes including Linux, Windows, OS X.  Ø  LGPL free software with full commercial support from iMatix.

"JSch is a pure Java implementation of SSH2. JSch allows you to connect to an sshd server and use port forwarding, X11 forwarding, file transfer, etc., and you can integrate its functionality into your own Java programs."

"WiredX is an X Window System server, written in pure JavaTM. WiredX enables you to allow access to UNIX/X applications from all web browsers with Java2 Plug-in and WiredX-Lite enables you to allow access to UNIX/X applications from web browsers(without Java Plug-in), IE, Netscape."

"What is the reason to quote at all? Consider it. It shouldn't be to allow people to scroll down to see all earlier discussions. If the news client is a bit smart, fetching the older articles from the server should be just as easy as to "scroll down". If a thread goes forth and back some times and earlier quotes accumulate, an article including all those quotes might get five-ten times larger than a posting without quotes, this wastes bandwidth and hard disk space. Therefore, IMHO, no quotes are far better than a posting at the top of all old quotes."

"Tony Tam shares tips for modeling data with MongoDB for a fast and scalable system based on his experience migrating billions of records from MySQL to MongoDB."

"Technical Debt is widely regarded as a bad thing; that should be avoided or should be paid back as soon as possible."

Idea interesante para implementar usos del patrón "ask" (request-reply) con mayor seguridad de tipos.

6 artículos que hay que leer

"Ansi Console uses ANSI escape sequences to color the console output."

ScalaNLP is a suite of machine learning and numerical computing libraries. ScalaNLP is the umbrella project for Breeze and Epic. Breeze is a set of libraries for machine learning and numerical computing. Epic (coming soon) is a high-performance statistical parser.