Version
To check which version of Apache Hadoop you are using, run the following command in a terminal window:
hadoop version
About Apache Hadoop
Hadoop is a data-oriented framework, it is developed and maintained by the Apache organization, it was first released
in the mid-2000s,
and it is highly popular even nowadays in 2021. Hadoop is a specific project that has many different modules inside
it.
The entire goal of Apache Hadoop, like most of the products offered by Apache, is to create and help create
open-source software.
Hadoop specifically is aimed towards helping make data computing scalable, reliable, and most importantly,
distributed.
Hadoop can be used to scale servers upwards. Starting from hosting offered by one machine, Hadoop is designed to help
scale up
and distribute the workload to a large cluster of computers.
Hadoop has a myriad of uses since its purpose is to help developers and initiatives make their ideas come to
reality.
Nevertheless, with the way that Apache Hadoop holds its software structure, and with the particular set of strengths
that it has,
it holds its most prominent use in big data hosting and helping develop applications oriented towards big data.
Hadoop itself advertises its capability to handle real-time data, which can be very useful when developing
applications for physical devices
that measure things in the real world. This is of course strongly related to the “Internet of Things” wave, where
everything
that we use will eventually be linked to the internet and will transmit data which in turn can be used to extract
trends
and help us improve our environment.
Hadoop has a number of features that have helped it become so widely adopted. First, it specializes in being
extremely fault-tolerant.
Since Hadoop is a framework oriented to help with data analysis and storage, being fault-tolerance oriented is
crucial for the reliability
of the applications developed with it. Hadoop has a proprietary load-distributing system that makes it extremely
powerful for big data
applications without needing a supercomputer to run a single instance of a data-related server.
Releases
Hadoop has been making life easier for developers since its initial release on the first of April of 2006, making it
a relatively new software
with a lot of room for growth and improvement as technological capacities get larger and more advanced.
We are currently in the 3.3x version released in the month of July 2020. Release cycles for Hadoop are larger than
the average software,
but the professional and user community of support make it an extremely useful and reliable framework to use at any
given date.