Semo 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).

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.

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

How to install Powerline fonts into CentOS 7

For a Oh-My-Zsh Shell custommized theme, called Spaceship Prompt it's reecommended to install the Powerline Fonts. In a CentOS 7 machine it can be a little more work, than doing it via a package manager.

Clone the latest Font

git clone https://github.com/powerline/fonts.git --depth=1

and install them

How to install Zsh version 5.6.2 into CentOS 7

Given that you have a clean installation of CentOS 7 which was already updated, by you, then you still have some dependencies to install make and install the external Zsh from the source. You must be root to get the stuff done.

Install GCC Development Tools

yum groupinstall "Development tools"

	HOW TO RESET AN (ANGRY) FURBY

	0. Open battery lid with screw-driver
	1. Remove batteries
	2. Press Reset Button and keep it pressed for a couple of seconds
	3. Insert batteries
	4. Wake up the Furby
	5. Turn it upside down
	6. Press tongue and pull tail at the same time