what is kafka

What is Kafka used for?
What is Kafka and why it is used?
What is Kafka in simple words?
What is Kafka and how it works?
Is Kafka difficult to learn?
When should I use Kafka?
What problems does Kafka solve?
Does Netflix use Kafka?
Why is Franz Kafka so popular?
Can I use Kafka as database?
Is Kafka memory?
Is Kafka push or pull?

What is Kafka used for?

Kafka is used for real-time streams of data, to collect big data, or to do real time analysis (or both). Kafka is used with in-memory microservices to provide durability and it can be used to feed events to CEP (complex event streaming systems) and IoT/IFTTT-style automation systems.

What is Kafka and why it is used?

Apache Kafka is an open-source streaming platform. It was originally developed at LinkedIn as a messaging queue, but now Kafka is much more than a messaging queue. It is a powerful tool for working with data streams and it can be used in many use cases.

What is Kafka in simple words?

Kafka is an open source software which provides a framework for storing, reading and analysing streaming data. ... Kafka was originally created at LinkedIn, where it played a part in analysing the connections between their millions of professional users in order to build networks between people.

What is Kafka and how it works?

Apache Kafka is a publish-subscribe based durable messaging system. A messaging system sends messages between processes, applications, and servers. ... Another application may connect to the system and process or re-process records from a topic. The data sent is stored until a specified retention period has passed by.

Is Kafka difficult to learn?

Apache Kafka has become the leading distributed data streaming enterprise big data technology. Kafka is used in production by over 33% of the Fortune 500 companies such as Netflix, Airbnb, Uber, Walmart and LinkedIn. If you look at the documentation, you can see that Apache Kafka is not easy to learn...

When should I use Kafka?

Use cases

Messaging. Kafka works well as a replacement for a more traditional message broker. ...
Website Activity Tracking. The original use case for Kafka was to be able to rebuild a user activity tracking pipeline as a set of real-time publish-subscribe feeds. ...
Metrics. ...
Log Aggregation. ...
Stream Processing. ...
Event Sourcing. ...
Commit Log.

What problems does Kafka solve?

The problem they originally set out to solve was low-latency ingestion of large amounts of event data from the LinkedIn website and infrastructure into a lambda architecture that harnessed Hadoop and real-time event processing systems. The key was the "real-time" processing.

Does Netflix use Kafka?

Netflix embraces Apache Kafka^® as the de-facto standard for its eventing, messaging, and stream processing needs. ... It provides us with the high durability and linearly scalable, multi-tenant architecture required for operating systems at Netflix.

Why is Franz Kafka so popular?

Franz Kafka's work is characterized by anxiety and alienation, and his characters often face absurd situations. He is famous for his novels The Trial, in which a man is charged with a crime that is never named, and The Metamorphosis, in which the protagonist wakes to find himself transformed into an insect.

Can I use Kafka as database?

As you can see, storage is one of the key principles of Kafka. Therefore, depending on your requirements and definition, Kafka can be used as a database.

Is Kafka memory?

Kafka relies on the filesystem for the storage and caching. The problem is disks are slower than RAM. ... Modern operating systems allocate most of their free memory to disk-caching. So, if you are reading in an ordered fashion, the OS can always read-ahead and store data in a cache on each disk read.

Is Kafka push or pull?

With Kafka consumers pull data from brokers. Other systems brokers push data or stream data to consumers. ... Since Kafka is pull-based, it implements aggressive batching of data. Kafka like many pull based systems implements a long poll (SQS, Kafka both do).