Author Archives: Piyush Rana

ScalaTest – How to Disable Test Cases using Tagging


Scala Test – How to disable Test Cases using Tagging Tagging your tests ScalaTest allows you to define some test categories, to “tag” tests as belonging to those categories, and filter tests to run based on their tags. For example, … Continue reading

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Akka Split Brain Resolver


Hello all, Knoldus organized a knolx session on the topic “Akka Split Brain Resolver” on Friday, 1st September 2017 In this session we have discussed about When operating an Akka cluster you must consider how to handle network partitions (a.k.a. … Continue reading

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Automatic Deployment Of Lagom Service On ConductR On DCOS


In our previous blog we have seen how to deploy the lagom service on conductr – https://blog.knoldus.com/2017/05/25/deploying-the-lagom-service-on-conductr/ In this blog we will create script to deploy your Lagom service on conduct present or running on top of DCOS. There are … Continue reading

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

Akka Split Brain Resolver – Problem and its Solution


AKKA Split Brain Resolver When operating an Akka cluster the developer will surely comes around network partitions (Split Brain scenarios) and machine crashes. There are multiple strategies present by lightbend to handle such erratic behavior and, after a deeper explanation … Continue reading

Posted in Akka, Scala | Tagged , , , , | 6 Comments

Deploying The Lagom Service On ConductR


In the previous blog, we have discussed how to create a Lagom service based architecture with a beautiful word count example. One can refer to the below link- https://blog.knoldus.com/2017/03/27/lagom-framework-the-legacy-wordcount-example/ In this blog we will discuss now how we can deploy … Continue reading

Posted in Scala | 1 Comment

Lagom Framework: The Legacy WordCount Example


What is Lagom? Lagom is an open source micro-service framework, built with Akka message-driven runtime and Play web framework and finally light bend service orchestration. Mixing all these technologies abstracts away the complexities of building, running, and managing microservice architectures. … Continue reading

Posted in big data, Microservices, Scala | Tagged , , , , | 2 Comments

Spark Cassandra Connector On Spark-Shell


Using Spark-Cassandra-Connector on Spark Shell Hi All , In this blog we will see how we can execute our spark code on spark shell using Cassandra . This is very efficient at testing or learning time , where we have … Continue reading

Posted in apache spark, big data, Cassandra, Scala, Spark | 2 Comments

Transaction Management in Cassandra


As we are all from the Sql Background and its been ages SQL rules the market , so transaction are something favorite to us . While Cassandra does not support ACID (transaction) properties but it gives you the ‘AID’ among … Continue reading

Posted in big data, Cassandra, NoSql, Scala | 4 Comments

Cassandra Tips And Techniques


Tips and Techniques to Load Data in Cassandra Using Java – Driver .
To Implement Pagination Concepts in various Scenarios in Cassandra Continue reading

Posted in big data, Cassandra, NoSql, Scala | 1 Comment

Cassandra Counter Column And Table


Blog Describes the usage of counter column and table in Cassandra . Continue reading

Posted in big data, Cassandra, NoSql, Scala | Tagged , , , , | 5 Comments