From what I know about the MySQL Cluster, I can guess it could be based on something like it on the inside. But wrapped into a more NoSQL API, interestingly MySQL cluster also comes with a primarily C++ NoSQL API known as NDB++. I’ll perform a comparison between the two and share the finding in a later post.

Data is stored as key-value pairs, which are written to particular storage node(s), based on the hashed value of the primary key. Storage nodes are replicated to ensure high availability, rapid failover in the event of  a node failure and optimal load balancing of queries. Customer applications are written using an easy-to-use Java API to read and write data. The NoSQL Database links with the customer application, providing access to the data via the appropriate storage node for the requested key-value.

In the mean time, if you would like to know more here is a list of features.

• Simple Data Model
  • Key-value pair data structure, keys are composed of Major & Minor keys
  • Easy-to-use Java API with simple Put, Delete and Get operations
• Scalability
  • Automatic, hash-function based data partitioning and distribution
  • Intelligent NoSQL Database driver is topology and latency aware, providing optimal data access
• Predictable behavior
  • ACID transactions, configurable globally and per operation
  • Bounded latency via B-tree caching and efficient query dispatching
• High Availability
  • No single point of failure
  • Built-in, configurable replication
  • Resilient to single and multi-storage node failure
  • Disaster recovery via data center replication
• Easy Administration
  • Web console or command line interface
  • System and node management
  • Shows system topology, status, current load, trailing and average latency, events and alerts

So, for Linux the command would be like;

# dmidecode -s system-serial-number

In case you are using Windows, just fire up a command prompt and run the following…

C:\> wmic bios get serialnumber

I hope this helps save your time…

Intel has recently announced the first release of Concurrent Collections for Haskell. I believe it should be a real booster for the Haskell community.

For those of you who are new to Haskell, please take a look at the code below.

myStep items tag =
do word1 <- get items "left"
word2 <- get items "right"
put items "result" (word1 ++ word2 ++ show tag)

cncGraph =
do tags <- newTagCol
items <- newItemCol
prescribe tags (myStep items)
initialize$
do put items "left" "Hello "
put items "right" "World "
putt tags 99
finalize$
do get items "result"

main = putStrLn (runGraph cncGraph)

This short program is support to print out “Hello world 99″.

For more details please follow this link.

Give it a try and see if you find it useful enough.

http://www.hunch.com/url-shortening-services/

You might be thinking why a post on such an old thing, well the interpreter created by Al was special, I loved it and I have recently been looking for it. I didn’t find the original text based version, but I was able to locate a newer GUI version that runs on windows or WINE on top of Linux. This specific version was produced in 2005 and works like a breeze. Its not an interpreter anymore. It is now more of an IDE built around the GNU C compiler. Its something nice for those who wish to No need for those bulky commercial compilers for newbies anymore, just get your hands on Quincy and get on with your learning with the power of open source.

By the way, I must mention that Quincy was named after the adorable cat of the author of the book, I wonder if the cat still lives? You’ll find a photo of her in the program logo.

You can download Quincy from this link.

http://www.uploadmb.com/dw.php?id=1255959978

More information can be found at http://quincy.codecutter.org

A German microchip vendor Micronas AG has come up with something revolutionary. It is a chip that contains 42 micro fuel cells integrated on it. It ws created in collaboration with University of Freibur, Germany.

The power generated is regulated at a nominal voltage of 3.3volts by a regulating circuit that is powered by 4 additional fuel cells on chip. With a lifetime of about one year at nominal load in the triple-digit microwatt range, the device could eventually power smart autonomous systems in applications where no conventional power source is available. In the lead research scientist of the university Mr. Hoffmann’s view, energy harvesting devices and the chip-level fuel cell are not mutually competitive, but can instead be regarded as complimentary technologies, For instance, the fuel cell could be used as a power buffer for periods when energy harvesting methods don’t generate enough power.

An article detailing the research and device can be found here.

This is how it works, you just select the processor family at the left of the page and you will be shown a table for VT support on the right. Match your processor number in the right pane and you’ll know if your processor supports VT or not. You can easily get the processor model for your computer from ‘My Computer’ properties on Microsoft Windows or using the ‘cat /proc/cpuinfo’ command on Linux.

http://ark.intel.com/VTList.aspx

You can click here for further details.