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Apache Spark vs MapReduce: A Detailed Comparison

Knowledge Hut

quintillion bytes of data are created every single day, and it’s only going to grow from there. MapReduce is written in Java and the APIs are a bit complex to code for new programmers, so there is a steep learning curve involved. It also supports multiple languages and has APIs for Java, Scala, Python, and R. What is MapReduce?

Scala 96
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Two-Factor Authentication in Scala with Http4s

Rock the JVM

There are a variety of industry-standard algorithms that are used to generate OTP tokens such as SHA256, however, they require two inputs, a static value known as a secret key and a moving factor which changes each time an OTP value is generated. val Http4sVersion = "0.23.18" val OtpJavaVersion = "2.0.1" val ZxingVersion = "3.5.1"

Scala 92
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Solving Espresso’s scalability and performance challenges to support our member base

LinkedIn Engineering

Enabling Native SSL encryption/decryption Java's default built-in SSL implementation carries a significant performance overhead. To employ Netty Native SSL, one must include the pertinent Netty Native dependencies, as it interfaces with OpenSSL through the JNI (Java Native Interface).

Bytes 88
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5 Reasons why Java professionals should learn Hadoop

ProjectPro

Java developers have increased probability to get a strong salary hike when they shift to big data job roles. If you are a java developer, you might have already heard about the excitement revolving around big data hadoop. There are 132 Hadoop Java developer jobs currently open in London, as per cwjobs.co.uk

Java 52
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How much Java is required to learn Hadoop?

ProjectPro

For most professionals who are from various backgrounds like - Java, PHP,net, mainframes, data warehousing, DBAs, data analytics - and want to get into a career in Hadoop and Big Data, this is the first question they ask themselves and their peers. Your search for the question “How much Java is required for Hadoop?”

Java 40
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String in Data Structure [A Beginner’s Guide]

Knowledge Hut

In the main concepts and features of Java, strings are one of the possible data structures used to describe a series of characters - usually contiguous - in memory locations. Java: Java uses the `String` class to declare and manipulate strings. Strings in Java are objects. What is String Data Structure?

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A Functional Load Balancer with Scala, Http4s and Cats Effect

Rock the JVM

A load balancer usually sits in front of a few servers and forwards the HTTP requests to them based on some algorithm. There are different algorithms that can be used to achieve this goal, in this case we’re going to be using Round Robin algorithm. forBackends ) result String ( bytes. forBackends ) result String ( bytes.

Scala 104