Hadoop 101: Top Hadoop Terms You Need to Know
Big data is one of the most trending technologies of the decade. If you know big data, you would have heard about Hadoop. But, if you don’t know Hadoop, you have landed on the right page. Here we will cover ...
How is fault tolerance handled in Spark streaming?
Spark Streaming components
Data model
All data is modeled as RDDs, built by design with lineage of deterministic operations, i.e. any re-computation always leads to the same result. Essentially the same process (however with a different mechanism) as in Hadoop's fault-tolerance for ...
Hadoop 2.0 and YARN Architecture
What is Hadoop 2.0 & YARN?
First off, a big kudos to Hortonworks for the great webinar by Arun C. Murthy ( who by the way was one of the primary people in building/releasing YARN) in which this post is based ...
Hadoop admin interview questions
Which operating system(s) are supported for production Hadoop deployment?
The main supported operating system is Linux. However, with some additional software Hadoop can be deployed on Windows.
What is the role of the namenode?
The namenode is the "brain" of the Hadoop cluster ...