Hadoop FS Shell Commands
Hadoop file system (fs) shell commands are used to perform various file operations like copying file, changing permissions, viewing the ...
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: ...
Pig Interview Questions
Can you give us some examples how Hadoop is used in real time environment?
Let us assume that we have an ...
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 ...
Hive Interview Questions
What is Hive?
Hive is a data warehouse system for Hadoop that facilitates easy data summarization, ad-hoc queries, and the analysis ...
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 ...
MongoDB Interview Questions
What were you trying to solve when you created MongoDB?
We were and are trying to build the database that we ...
Hadoop Interview Questions – MapReduce
Looking out for Hadoop Interview Questions that are frequently asked by employers?
What is MapReduce?
It is a framework or a programming ...
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 ...
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 ...