The following are some of the key points to remember about the hdfs.
What does hadoop stand for.
The hadoop ecosystem has grown significantly over the years due to its extensibility.
Looking for the definition of hadoop.
If you have 2 minutes you can watch a video 1 with more details.
The hadoop distributed file system hdfs is a distributed scalable and portable file system written in java for the hadoop framework.
Some of the most popular applications are.
It is part of the apache project sponsored by the apache software foundation.
B1 b2 indicates data blocks.
It is a very efficient technology to manage the hadoop cluster.
The following is a high level architecture that explains how hdfs works.
Hdfs stands for hadoop distributed file system which is the storage system used by hadoop.
Hadoop gets a lot of buzz these days in database and content management circles but many people in the industry still don t really know what it is and or how it can be best applied.
Some consider it to instead be a data store due to its lack of posix compliance but it does provide shell commands and java application programming interface api methods that are similar to other file systems.
But while you informationweek reader clearly understand hadoop s significance there s a high probability that many people in your organization including more than a few.
Well being a versatile actor hadoop can fit into many roles depending on the script of the movie business needs.
Yarn is a part of hadoop 2 version under the aegis of the apache software foundation.
Spark an open source distributed processing system commonly used for big data.
The name hadoop was given by one of doug cutting s sons to that son s toy elephant.
Hadoop is an open source java based programming framework that supports the processing and storage of extremely large data sets in a distributed computing environment.
Cloudera ceo and strata speaker mike olson whose company offers an enterprise distribution of hadoop and contributes to the project discusses hadoop s background and its applications in the following interview.
That means it can be used for product recommendations identifying diseases fraud detection building indexes sentiment analysis infrastructure management energy savings online travel etc.
In the above diagram there is one namenode and multiple datanodes servers.
Today the hadoop ecosystem includes many tools and applications to help collect store process analyze and manage big data.
The apache hadoop yarn stands for yet another resource negotiator.
Yarn is a completely new way of processing data and is now rightly at the centre of the hadoop architecture.
Doug used the name for his open source project because it was easy to pronounce and to google.
