Types and Examples of NoSQL Databases
NoSQL databases are growing with very rapid speed because of their exciting features like more flexibility and scalability, schema-free architecture, easy replication support, simple API, consistent / BASE (not ACID), support for big data and more.
What is NoSQL database?
NoSQL is ...
MongoDB NoSQL Database Interview Questions
MongoDB is the best free open source NoSQL document oriented database. If you are preparing for the technical interview on MongoDB NoSQL database, must prepare the following MongoDB NoSQL database interview questions. These MongoDB NoSQL database interview questions cover basic ...
Use Cases Of MongoDB
MongoDB is a relatively new contender in the data storage circle compared to giant like Oracle and IBM DB2, but it has gained huge popularity with their distributed key value store, MapReduce calculation capability and document oriented NoSQL features.
MongoDB has ...
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 ...
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: ...
Big Data and the Role of Intuition
Many people have asked me over the years about whether intuition has a role in the analytics and data-driven organization. I have always reassured them that there are plenty of places where intuition is still relevant. For example, a hypothesis ...
Which Hadoop Distribution Is Right For You?
Selecting a Hadoop distribution can seem pretty daunting. But it all comes down to which platform best suits your Big Data needs.
The thought of evaluating whether a particular technology is right for your company can conjure up feelings of stress, ...
MongoDB Raises $150M For NoSQL Database Technology With Salesforce
MongoDB has raised $150 million from T. Rowe Price Associates with new investors Altimeter Capital and Salesforce.com. Existing investors Intel Capital, NEA, Red Hat and Sequoia Capital also participated in the round. MongoDB has raised $231 million since the founders ...
Big Data for Telco Begins to Unleash Systems of Engagement
In our recently completed Q3 2013 Global State Of Enterprise Architecture Online Survey, big data for real-time analytics moved from the No. 3 most revolutionary technology to the No. 2 position, according to the 116 enterprise architects who participated. This ...
Planning for scale with Enterprise NoSQL
All applications have inherent limits in what they can support. As organizations grow, so do their expectations on the apps they use. Development and operations teams need to plan for large scale from day one — not react to it ...