Apache Solr with Java: Result Grouping with Solrj

This blog is a detailed, step-by-step guide on implementing group by field in Apache Solr using Solrj.

Note: Grouping is different from Faceting in Apache Solr. While grouping returns the documents grouped by the…

Partitioning in Apache Hive

Partitions

Hive is a good tool for performing queries on large datasets, especially datasets that require full table scans. But quite often there are instances where users need to filter the data on specific column values.thats where Partitioning…

Saga of Netty ( Part 1 — Theoretical Introduction )

Why explore Netty? Before starting a series of blog posts about Netty this is an obvious question. If you love to develop distributed or high throughput or big data applications with the help of already crafted libraries and SDKs and have a…

Starting Hive-Client Programmatically With Scala

Hive defines a simple SQL-like query language to querying and managing large datasets called Hive-QL ( HQL ). It’s easy to use if you’re familiar with SQL Language. Hive allows programmers who are familiar with the language to write the custom…

Tutorial 1:Cucumber with java maven project

Hi Folks.

From this Blog we will start a series of cucumber BDD tool .Before go through the cucumber We should know how to integrate cucumber with java maven project.

Tutorial 2:Introduction on how to write a First Test Script in CUCUMBER

Hello Everyone,

In this series of blog it’s time to look into how to write test cases in cucumber and execution of these test cases.Follow these Steps for the Same.
You can read the…

UnderStanding Optimized Logical Plan In Spark

LogicalPlan is a tree that represents both schema and data,these trees are manipulated and optimized by catalyst framework

There are three types of logical plans
○ Parsed logical plan
○ Analysed Logical Plan
○ Optimized…

Apache Hive 2.1 Installation with TroubleShooting

Apache Hive is considered the defacto standard for interactive SQL queries over petabytes of data in Hadoop.Apache Hive 2.1 was released almost about a year ago,in this blog i will tell you all the installation steps for apache hive 2.1

Scala Map

Scala Map is a collection of Key-value pair. A map cannot have duplicate keys but different keys can have same values i.e keys are unique whereas values can be duplicate.

Maps in Scala are not language syntax. They are library abstractions that you can extend and adapt.