Sorting Through What's Really Going on in the Hadoop Stack

Email     |     Share  
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11
Next Sorting Through What's Really Going on in the Hadoop Stack-7 Next

While Hive helps you integrate Hadoop data into existing IT systems, Sqoop goes the other way and helps you move data out of traditional relational databases and data warehouses into Hadoop. “It allows users to specify the target location inside of Hadoop and instruct Sqoop to move data from Oracle, Teradata or other relational databases to the target,” writes Kelly.

Loraine LawsonEveryone tends to focus on the “big” in Big Data, so much so that it’s easy to lose focus on the fact that Hadoop is really about data. Let’s regroup for a minute and really look at what’s going on with the data on Hadoop.

First, there’s the core. When people say “Hadoop,” they’re usually referring to the Hadoop core, which Loraine Lawson explained:

The Hadoop Distributed File System. What’s it doing with the data? It’s distributing it on nodes and storing it there.

MapReduce. This does the real work in the Hadoop core. If you want to run a process or computation on the data, it “maps” that out to the nodes and then runs the process, and “reduces” the results to your answer. So, it’s processing the data.

Now, if you’re familiar with data at all, you’ll notice there are a whole lot of things missing from that equation, such as:

  • Modeling
  • Metadata
  • Job scheduling
  • Workflow
  • Data management

This is where the growing list of Apache Hadoop-related projects comes into play.

These projects go by an odd assortment of names: Pig, Hive, Flume, Zookeeper, but they’re often short-changed when we talk about Hadoop. Loraine has seen them referred to as the “Hadoop stack,” though some programmers prefer “Hadoop ecosystem." Forrester refers to them as “functional layers.”

For the most part, they’re of interest to developers more than executives, but hopefully a high-level view of these solutions will add some depth to your understanding of Hadoop and its capabilities.

Here are a few of the more common names you’ll hear.

 

Related Topics : Vulnerabilities and Patches, Resellers, Broadcom, Broadband Services, Supercomputing

 
More Slideshows

infra100-190x128 Top 10 Strategic Technology Trends for 2017

Here are the top 10 strategic technology trends that will impact most organizations in 2017. Strategic technology trends are defined as those with substantial disruptive potential or those reaching the tipping point over the next five years. ...  More >>

Global33-290x195 2017 and Beyond: How Digital Innovation Will Impact the World

Digital innovation is by far the biggest influencer, changing the way we do just about everything, from shopping to communication to running a business. ...  More >>

ArriaNLG-IoTAutomation0x Internet of Things Personified: Integration and Automation

The real value that the Internet of Things brings is at the intersection of gathering data and leveraging it. ...  More >>

Subscribe to our Newsletters

Sign up now and get the best business technology insights direct to your inbox.