Apache Spark-3 Real-World Use Cases
By Alex Woodie
The Hadoop processing engine Spark has risen to become one of the hottest big data technologies in a short amount of time. And while Spark has been a Top-Level Project at the Apache Software Foundation for barely a ...
Avoiding Split Brainedness in HA Hadoop Clusters
The US Patent Office recently granted Zettaset a patent for the underlying technology in its Hadoop high availability that prevents a "split-brain" situation where multiple master nodes think they're in control of the Hadoop cluster. It's a feather in the ...
Big Workflow-The Future of Big Data Computing
How can organizations embrace — instead of brace for — the rapidly intensifying collision of public and private clouds, HPC environments and Big Data? The current go-to solution for many organizations is to run these technology assets in siloed, specialized ...
Hadoop YARN adds more application threads for big data users
Even Hadoop's most enthusiastic proponents might admit that its marriage to MapReduce has limited what the open source technology can do. But with the advent of Hadoop 2 and its key component, the Hadoop YARN resource manager, the distributed processing ...
How to use Cassandra CQL in your Java Application
Cassandra Query Language (CQL) is a SQL (Structured Query Language)-like language for querying Cassandra. Cassandra's data model is a partitioned row store with tunable consistency. Rows are organized into tables; the first component of a table's primary key is the ...
Apache Hadoop 2.3.0 was released
Hadoop-2.3.0 is the first release for the year 2014, and brings a number of enhancements to the core platform, in particular to HDFS. There are a lot of bug fixes and small changes in this one - you can read ...
Why Big Data Applications Are Already a Reality
The advent of the Internet and World Wide Web changed many things in the technology landscape. Information began to become widely accessible. Individuals began to connect with one another online. Merchants began to market and sell their products digitally, sometimes ...
MongoDB vs CouchDB-Open Source NoSQL and Document Databases Comparison
MongoDB and CouchDB are both document-oriented databases. MongoDB and CouchDB are the best examples of open source NoSQL database. Aside from both storing documents though, it turns out that they don't share much in common. There are a lot of ...
How YARN Opens Doors to Easier Programming Tools for Hadoop 2.0 Users
The emergence of YARN for the Hadoop 2.0 platform has opened the door to new tools and applications that promise to allow more companies to reap the benefits of big data in ways never before possible with outcomes possibly never ...
Exploring The Hadoop Network Topology
Hadoop is designed to run on large clusters of commodity servers – in many cases spanning many physical racks of servers. A physical rack is in many cases a single point of failure (for example, having typically a single switch ...