Category Archives: Scala

Internal working on Writing and Reading in Cassandra


Apache Cassandra is fast, distributed Database which is built for high availability and Linear Scalability with the Predictable Performance, No SPOF, Multi-DC & easy to manage. Cassandra does not follow the master-slave architecture. It uses Peer to Peer technology. Cassandra … Continue reading

Posted in Cassandra, NoSql, Scala | Tagged | 1 Comment

One-way & two-way streaming in a Lagom application


Now a days streaming word is a buzz word and you should have heard many types of streaming till now i.e. kafka streaming, spark streaming etc etc. But in this blog we will see a new type of streaming i.e … Continue reading

Posted in Akka, Best Practices, big data, Functional Programming, github, Java, knoldus, Messages, Reactive, Scala, Streaming, Web Services | Leave a comment

Assimilation of Spark Streaming With Kafka


As we know Spark is used at a wide range of organizations to process large datasets. It seems like spark becoming main stream. In this blog we will talk about Integration of Kafka with Spark Streaming. So, lets get started. How Kafka … Continue reading

Posted in Apache Kafka, apache spark, Scala | Tagged , , , | 1 Comment

DevOps | A Basic view of DC/OS and Containers.


I heard this term Data Center operating system many times and tried to understand it from various websites and blogs but couldn’t get the basic idea of it. What is DC/OS in simple terms and why do we need it? Every-time … Continue reading

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Scala Best Practices: SAY NO TO RETURN


“Any fool can write code that a computer can understand. Good programmers write code that humans can understand.” – Martin Fowler Writing readable and understandable code is often overrated. I feel it’s not big a deal. One should just start following … Continue reading

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Store Semantic Web Triples into Cassandra


The semantic web is the next level of  Web Searching where data is more important and it should be well defined. The semantic web is needed for making the web search more intelligent and intuitive to get the user’s requirement. … Continue reading

Posted in Scala, Cassandra, akka-http | Tagged , , , , | 1 Comment

Understanding HDFS Federation


In this blog, we will discuss about Hadoop federation, Hadoop architecture vs Hadoop Federated architecture and will talk about various issues solved by hdfs federation. So let us first see why it is gaining so much popularity. To address this … Continue reading

Posted in Scala | Tagged | 1 Comment

Knolx: Deploying Microservice on Docker


Knoldus has organized a 30 min session on 29th September 2017. The topic was “Deploying microservice on docker”. Many people have joined and enjoyed the session. I am going to share the slides and video here. Slides: Video: Please feel … Continue reading

Posted in Scala | 1 Comment

Integrating Presto With Carbondata


Presto is a well known open source distributed SQL query engine for running interactive analytic queries against data sources of all sizes ranging from gigabytes to petabytes. It was developed by Facebook to analyse petabytes of data and was later … Continue reading

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What’s new in Neo4j 3.3.0


Neo4j released a new version of Neo4j i.e. Neo4j 3.3.0. There are the lot of improvement and new features along with new UI. You can download the webImage from here. Some of the changes in the new version of Neo4j … Continue reading

Posted in Scala | 1 Comment