Data transfer between MySql and Cassandra using Sqoop
Sqoop is a tool designed to transfer data between Hadoop and relational databases. You can use Sqoop to import data from a relational database management system (RDBMS) such as MySQL or Oracle into...
View ArticleHow to use Cassandra CQL in your Java Application
Cassandra Query Language (CQL) is a SQL (Structured Query Language)-like language for querying Cassandra. Cassandra's data model is a partitioned row store with tunable consistency. Rows are organized...
View ArticleCreating Keyspace, Column Family, Columns and Super Columns using Hector API...
The Below Example Show how to Creates a Keyspace, a Column Family, Columns and Super Columns using Hector Api. Lets say we have: Keyspace Name: TestKeyspace Column Family Name:...
View ArticleInserting and querying a single row with single column in Cassandra using...
The Below example inserts a Column with the column name "Name" and the column value of "Deepak" under the key "RK1". The retrieving and instance of the Mutator class from HFactory makes this action...
View ArticleHow to use IndexedSlicesQuery in Hector API in Cassandra
Lets Say you have your desired value with Cassandra Column Name (or Cassandra Column Key) and you want to query on the values and not on the Column Name. Cassandra provides us with a Class in Hector...
View ArticleWhat is Big Data and How Big is this Big Data?
Today Big Data has become the Buzz word of the market. To define what Big Data is, first we have to understand how Big this Big Data actually is. In naive language if we have to say, its the data that...
View ArticleNew Cassandra 2.0 Release: Strengthen CQL, Support for Triggers, Lightweight...
Apache Cassandra gets a new release 2.0 on 4th September 2013. Being Developed at facebook and later open sourced, it is one of the most famous NoSQL databases used world wide. Based on Google's...
View ArticleWhat are the Pre-requisites for getting started with Big Data Technologies
Lots of my friends who have heard about Big Data World or may be interested in getting into the same, have this query, what are the prerequisite for learning or may be start digging into Big Data...
View ArticleDataStax Cassandra and OpsCenter Installation. Step by step Procedure.
DataStax distributes and supports a version of Apache Cassandra which manages real-time analytics, enterprise serach data and leverages its power with Apache Hadoop, Apache Solr, Apache Hive, Pig,...
View ArticleBest of Books and Resources to Get Started with Hadoop
Hello Guys! I will be starting a series of Hadoop Tutorials, that will help you understand the basic concepts of Hadoop, Hadoop HDFS and Hadoop MapReduce. But before that i would like to let you know...
View ArticleStart using RangeSliceQuery instead of IndexedSliceQuery as IndexedSliceQuery...
In my earlier post i have shown you How to use IndexedSliceQuery in Cassandra. Well it is time now to switch it with RangeSliceQuery since IndexedSliceQuery is now Deprecated with Hector 1.1+ release....
View ArticleHadoop Tutorial: Part 1 - What is Hadoop ? (an Overview)
Hadoop is an open source software framework that supports data intensive distributed applications which is licensed under Apache v2 license. At-least this is what you are going to find as the first...
View ArticleHadoop Tutorial: Part 2 - Hadoop Distributed File System (HDFS)
In the last tutorial on What is Hadoop? i have given you a brief idea about Hadoop. So the two integral parts of Hadoop is Hadoop HDFS and Hadoop MapReduce. Lets go further deep inside HDFS. Hadoop...
View ArticleHadoop Tutorial: Part 3 - Replica Placement or Replication and Read...
Till now you should have got some idea of Hadoop and HDFS. In tutorial 1 and tutorial 2 we talked about the overview of Hadoop and HDFS. Lets get a bit more technical now and see how Read Operations...
View ArticleHadoop Tutorial: Part 4 - Write Operations in HDFS
In the previous tutorial we get to know about the read operations in HDFS, now lets move on further and see how write happens in HDFS. source: Hadoop The Definitive GuideHere we are considering the...
View ArticleHadoop Installation on Local Machine (Single node Cluster)
As requested by many of our visitors and subscribes, here i am with the single node cluster installation of Hadoop on Ubuntu. So if you are new to hadoop you can follow the below links to get some...
View ArticleHadoop Tutorial: Part 5 - All Hadoop Shell Commands you will Need.
Since now we are done with the Hadoop Installation. Lets Start working on it's Shell Commands. If you know Unix Shell Commands it will be really easy for you to understand it. It is quite similar to...
View Article
