Apache Kafka Explained (Comprehensive Overview)

Apache Kafka is an open-source, publish/subscribe (pub/sub) messaging system, also very often described as a distributed event log where all the new records are immutable and appended to the end of the log.

Kafka aims to provide a reliable and high-throughput platform for handling real-time data streams and building data pipelines. It also provides a single place for storing and distributing events that can be fed into multiple downstream systems which helps to fight the ever-growing problem of integration complexity. Besides all of that Kafka can also be easily used to build a modern and scalable ETL, CDC or big data ingest systems.

Kafka is used across multiple industries, from companies like Twitter and Netflix to Goldman Sachs and Paypal. It was originally developed by Linkedin and open sourced in 2011.

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Apache Kafka Explained (Comprehensive Overview)

Apache Kafka 2.7 – Overview of Latest Features, Updates, and KIPs

https://cnfl.io/apache-kafka-2-7 | Apache Kafka 2.7 is here and with it comes a new batch of Kafka Core, Kafka Connect, and Kafka Streams updates. In this video, Tim Berglund breaks down the seven Kafka Improvement Proposals (KIPs) that will add substantial updates to Apache Kafka®, including adding a new inter-broker API in relation to ZooKeeper removal, throttle create topics, support for PEM format, sliding windows, and end-to-end latency metrics. Make sure to check out the release notes and blog post for more information, and let’s get to building.

Release notes: https://dist.apache.org/repos/dist/release/kafka/2.7.0/RELEASE_NOTES.html
Audio-only version: https://developer.confluent.io/podcast/apache-kafka-27-overview-of-latest-features-updates-and-kips

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Apache Kafka Tutorial - Kafka Tutorial for Beginners

This Apache Kafka Tutorial - Kafka Tutorial for Beginners will help you understand what is Apache Kafka & its features. It covers different components of Apache Kafka & it’s architecture. So, the topics which we will be discussing in this Apache Kafka Tutorial are:

  1. Need of Messaging System
  2. What is Kafka?
  3. Kafka Features
  4. Kafka Components
  5. Kafka architecture
  6. Installing Kafka
  7. Working with Single Node Single Broker Cluster

Why Learn Apache Kafka?

Kafka training helps you gain expertise in Kafka Architecture, Installation, Configuration, Performance Tuning, Kafka Client APIs like Producer, Consumer and Stream APIs, Kafka Administration, Kafka Connect API and Kafka Integration with Hadoop, Storm and Spark using Twitter Streaming use case.

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Carmen  Grimes

Carmen Grimes

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Introduction To Apache Kafka

What is Apache Kafka?

Kafka is a Publish-Subscribe based messaging system that is exchanging data between processes, applications, and servers. Applications may connect to this system and transfer a message onto the Topic(we will see in a moment what topic is) and another application may connect to the system and process messages from the Topic.





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Carmen  Grimes

Carmen Grimes

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Using Apache Kafka with .NET

Diogo Souza explains using Apache Kafka with .NET including setting it up and creating apps to test sending messages asynchronously.

Have you ever used async processing for your applications? Whether for a web-based or a cloud-driven approach, asynchronous code seems inevitable when dealing with tasks that do not need to process immediately. Apache Kafka is one of the most used and robust open-source event streaming platforms out there. Many companies and developers take advantage of its power to create high-performance async processes along with streaming for analytics purposes, data integration for microservices, and great monitoring tools for app health metrics. This article explains the details of using Kafka with .NET applications. It also shows the installation and usage on a Windows OS and its configuration for an ASP.NET API.

How It Works

The world produces data constantly and exponentially. To embrace such an ever-growing amount of data, tools like Kafka come into existence, providing robust and impressive architecture.

But how does Kafka work behind the scenes?

Kafka works as a middleman exchanging information from producers to consumers. They are the two main actors in each edge of this linear process.

Apache Kafka

Figure 1. Producers and consumers in Kafka

Kafka can also be configured to work in a cluster of one or more servers. Those servers are called Kafka brokers. You can benefit from multiple features such as data replication, fault tolerance, and high availability with brokers.

Kafka clusters

Figure 2. Kafka clusters

These brokers are managed by another tool called Zookeeper. In summary, it is a service that aims to keep configuration-like data synchronized and organized in distributed systems.

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Chaos Engineering with Apache Kafka and Gremlin

https://cnfl.io/podcast-episode-164 | The most secure clusters aren’t built on the hopes that they’ll never break. They are the clusters that are broken on purpose and with a specific goal. When organizations want to avoid systematic weaknesses, chaos engineering with Apache Kafka® is the route to go.

Your system is only as reliable as its highest point of vulnerability. Patrick Brennan (Principal Architect) and Tammy Butow (Principal SRE) from Gremlin discuss how they do their own chaos engineering to manage and resolve high-severity incidents across the company. But why would an engineer break things when they would have to fix them? Brennan explains that finding weaknesses in the cloud environment helps Gremlin to:
► Avoid lengthy downtime when there is an issue (not if, but when)
► Halt lost revenue that results from service interruptions
► Maintain customer satisfaction with their stream processing services
► Steer clear of burnout for the SRE team

Chaos engineering is all about experimenting with injecting failure directly into the clusters on the cloud. The key is to start with a small blast radius and then scale as needed. It is critical that SREs have a plan for failure and then practice an intense communication methodology with the development team. This plan has to be detailed and includes precise diagramming so that nothing in the chaos engineering process is an anomaly. Once the process is confirmed, SREs can automate it, and nothing about it is random.

When something breaks or you find a vulnerability, it only helps the overall network become stronger. This becomes a way to problem-solve across engineering teams collaboratively. Chaos engineering makes it easier for SRE and development teams to do their job, and it helps the organization promote security and reliability to their customers. With Kafka, companies don’t have to wait for an issue to happen. They can make their disorder within microservices on the cloud and fix vulnerabilities before anything catastrophic happens.

EPISODE LINKS
► Try Gremlin’s free tier: https://gremlin.com/free
► Join Gremlin’s Slack channel: https://gremlin.com/slack
► Learn more about Girl Geek Academy: https://girlgeekacademy.com/
► Learn more about gardening: https://www.masterclass.com/classes/ron-finley-teaches-gardening
► Join the Confluent Community: https://cnfl.io/confluent-community-episode-164
► Kafka tutorials, resources, and guides at Confluent Developer: https://cnfl.io/confluent-developer-episode-164
► Kafka streaming in 10 minutes on Confluent Cloud: https://cnfl.io/kafka-demo-episode-164
► Use 60PDCAST for $60 of free Confluent Cloud usage: http://cnfl.io/try-free-podcast-episode-164
► Promo code details: https://cnfl.io/promo-code-details-episode-164

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