Category Archives: Scala

Jmeter-Database testing with jmeter


Now here we again come with new topic Jmeter database testing. Now for database testing we have download mysql-connector-java jar file and placed in lib folder of jmeter then we start with the Thread group.   Now we make a … Continue reading

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Creating A Simple Hive Udf In Scala


Sometimes the query you want to write can’t be expressed easily (or at all) using the built-in functions that Hive provides. By allowing you to write a user-defined function (UDF), Hive makes it easy to plug in your own processing … Continue reading

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Hotfix To Install Latest Oracle JDK On Linux EC2 Instance (CentOS)


In this blog we will explore the procedure to install latest java 8 version ie JDK 8u121 (released on 17th January, 2017) on the EC2 Linux instance which comes with centOS as its default operating system. Following steps must be … Continue reading

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Knolx: An Introduction to BDD


Hi all, Knoldus has organized an one hour session on 23rd Dec 2016 at 4:00 PM. Topic was An introduction to BDD. Many people have joined and enjoyed the session. I am going to share the slides here. Please let me … Continue reading

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Blending Cucumber, Cassandra and Akka-Http


Folks, Knoldus has always pioneered the deep diving into the best ways to use cutting edge technologies. In the past few days, one of our team carried this deed by integrating Cucumber with Akka-Http, Cassandra and of course, Scala. In … Continue reading

Posted in Akka, akka-http, Cassandra, Cucumber, database, knoldus, sbt, Scala, scalatest, Test, testing, tests | Tagged | 6 Comments

Application compatibility for different Spark versions


Recently spark version 2.1 was released and there is a significant difference between the 2 versions. Spark 1.6 has DataFrame and SparkContext while 2.1 has Dataset and SparkSession. Now the question arises how to write code so that both the versions of … Continue reading

Posted in apache spark, Java, Scala, Spark | Tagged , , , , | 3 Comments

Knoldus Bags the Prestigious Huawei Partner of the Year Award


Knoldus was humbled to receive the prestigious partner of the year award from Huawei at a recently held ceremony in Bangalore, India. It means a lot for us and is a validation of the quality and focus that we put … Continue reading

Posted in Akka, Scala, Spark | Tagged , | 5 Comments

Mounting EBS(Elastic Block Store) volume to EC2(Elastic Compute Cloud) instance.


In this blog we will consider simple steps by which we can attach and mount a volume(elastic block store) to an ec2 instance. Following steps must be followed : Step 1 -> Creating an ec2 instance We will be creating … Continue reading

Posted in Amazon, Amazon EC2, AWS, AWS Services, Cloud, Devops, Scala, scaladays | 1 Comment

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

Apache flink single node cluster installation


In this blog we will go through apache flink  Single Node installation process,if you are not familiar with what apache flink is and what it do ,you can read from here now lets start with following steps download apache flink … Continue reading

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