0 comments on “Do you know Akka-HTTP Cache?”

Do you know Akka-HTTP Cache?


Today we are to going to talk about a very important aspect of reactive web applications development. It's not from the alien world, we always talk about it but we rarely want to deal with it. It's Cache. In today's…

2 comments on “Is Shifting to Domain Driven Design worth your Efforts?”

Is Shifting to Domain Driven Design worth your Efforts?


In our earlier blog, we explored a bit about Microservices. But let's take a step back and look into how microservices can be effectively designed. Yes, you guessed it right. We will be talking about the Domain Driven Design or what…

0 comments on “Unit Testing – The good, bad & ugly”

Unit Testing – The good, bad & ugly


Unit testing is common to all the codes that we write. We all do it, so it's important to understand the most “looked forward” (sarcasm) aspect of development. However overlooked and underestimated, Unit Testing forms the most important part of…

1 comment on “Knolx: Introduction to Algebird: Abstract Algebra for Analytics”

Knolx: Introduction to Algebird: Abstract Algebra for Analytics


Hello everyone, Knoldus organized a session on 6th October 2017. The topic was “Introduction To Algebird”. Many people attended and enjoyed the session. In this blog post, I am going to share the slides & video of the session. Slides: https://www.slideshare.net/knoldus/introduction-to-algebird-abstract-algebra-for-analytics https://www.slideshare.net/knoldus/introduction-to-algebird-abstract-algebra-for-analytics…

1 comment on “Rules while working with stream in Java 8”

Rules while working with stream in Java 8


First, let’s have a basic understanding of stream. Then we will have a look at the side effects that can occur while working with streams. Stream represents a sequence of objects from a source, which supports aggregate operations. One thing…

1 comment on “One-way & two-way streaming in a Lagom application”

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…

4 comments on “Simple Things You Can Learn From Cassandra Nodetool (Monitor/Manage) For DC/OS”

Simple Things You Can Learn From Cassandra Nodetool (Monitor/Manage) For DC/OS


Cassandra native tool called nodetool is used for monitoring and managing cassandra cluster for dcos

1 comment on “A Java Lagom service which only consumes from Kafka topic (Subscriber only service)”

A Java Lagom service which only consumes from Kafka topic (Subscriber only service)


Subscriber only service means an application which only consumes, does not produce. We have generally seen the applications which both produces and consumes data from a Kafka topic but sometimes we need to write an application which only consumes data…

1 comment on “What to do for overriding the PureConfig behavior in Scala ?”

What to do for overriding the PureConfig behavior in Scala ?


PureConfig has its own predefined behavior for reading and writing to the configuration files, but sometimes we got the tricky requirement in which we need some specific behavior; for example to read the config. It is possible to override the…

0 comments on “Apache Spark : Spark Union adds up the partition of input RDDs”

Apache Spark : Spark Union adds up the partition of input RDDs


Some days back when I was doing union of 2 pair rdds, I found the strange behavior for the number of partitions. The output RDD got different number of partition than input Rdd. For ex: suppose rdd1 and rdd2, each…