Semo

OpenALPR for Ubuntu 18.04

This is a slightly modified update to Daniel Kornev's excellent post which goes into more detail about why building from source is necessary on 18.04. His post was missing a few dependencies that I didn't have installed namely cmake, opencv and pkg-config. The following steps should get you a working build of openalpr on a fresh install of Ubuntu 18.04.

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If you're not working with a fresh install, this might be a good time to clean and update your system before proceeding. (Optional)

$ sudo apt update #fetch list of available updates
$ sudo apt upgrade #install updates – does not remove packages

Semo

(Q.1) What is Apache Kafka?

Apache Kafka is a publish-subscribe open source message broker application. This messaging application was coded in “Scala”. Basically, this project was started by the Apache software. Kafka’s design pattern is mainly based on the transactional logs design. For detailed understanding of Kafka, go through,
Kafka Tutorial.

(Q.2) Enlist the several components in Kafka.

The most important elements of Kafka are:

• Topic – Kafka Topic is the bunch or a collection of messages.
• Producer – In Kafka, Producers issue communications as well as publishes messages to a Kafka topic.
• Consumer – Kafka Consumers subscribes to a topic(s) and also reads and processes messages from the topic(s).