How to Get the Best Out of Big Data Solutions
Data has become the new raw material for businesses. And that’s how it should be in order to meet the dynamic needs of the current age. Thus, access to considerably large amounts of data and information always helps an organisation ...
Top 10 Big Data Trends in 2014
In January 2014, IDG published their latest big data enterprise survey and predictions for 2014 finding that on average, enterprises will spend $8M on big data –related initiatives in 2014. The study also found that 70% of enterprise organizations have ...
5 Keys to Big Data Success
As Big Data becomes more pervasive throughout farming, it’s important to understand what farmers need to make data collection and analysis successful, says John Fulton, Extension specialist at Auburn University.
"For many, there is no clear incentive or objective about the ...
Hadoop Interview Questions – HDFS
Are you planning to pursue a career in Hadoop or looking out for a job opportunity in Hadoop? Here is list of Hadoop interview questions which covers HDFS
What is the difference between a Hadoop database and Relational Database?
Hadoop is not ...
Data Export from Hadoop MapReduce to Database
Hadoop has become a huge part of Data Warehouse in most companies. It is used for a variety of use-cases: Search and Web Indexing, Machine learning, Analytics and Reporting, and so on. Most organizations are building Hadoop clusters in addition ...
Hadoop Cluster Commissioning and Decommissioning Nodes
To add new nodes to the cluster:
1. Add the network addresses of the new nodes to the include file.
hdfs-site.xml
<property>
<name>dfs.hosts</name>
<value>/<hadoop-home>/conf/includes</value>
<final>true</final>
</property>
mapred-site.xml
<property>
<name>mapred.hosts</name>
<value>/<hadoop-home>/conf/includes</value>
<final>true</final>
</property>
Datanodes that are permitted to connect to the namenode are specified in a
file whose name is specified by the dfs.hosts property.
Includes file ...
BigData TechCon-Learn HOW TO Master Big Data, Mar 31-Apr 2, Boston
Big Data TechCon, March 31-April 2, Boston, is the “how-to” big data event. Use code BIGDATA for $200 discount. www.bigdatatechcon.com
Plan now to attend Big Data TechCon, March 31-April 2 in Boston, to learn HOW-TO accommodate the terabytes and petabytes of data ...
MongoDB Interview Questions
What were you trying to solve when you created MongoDB?
We were and are trying to build the database that we always wanted as developers. For pure reporting, SQL and relational is nice, but when building data always wanted something different: ...
5 Steps To Master Big Data and Predictive Analytics
As recently as the past two years, one of the seminal issues regarding Big Data was storage, especially with respect to the exponential growth and size of unstructured data that did not fit into databases (e.g., video feeds, PowerPoint presentations). ...
21 NoSQL Innovators to Look for in 2020
In the ever-evolving world of enterprise IT, choice is generally considered a good thing – albeit having too many choices can create confusion and uncertainty. For those application owners, database administrators and IT directors who pine for the good old ...