It is important to optimally use features of the given programming language. By other words squeezing the maximum out of the language, shows the proficiency and elegancy of the code. Most of the java developers are familiar with enum and comparator. These are very useful features of the java language.

There are three elements of resources exists in Kubernetes, which are: CPU, Memory and Disk. By default 0.5CPU, 256mi resources are allocated per container.

In this article I will introduce and help you to run kubernetes, avoiding any pain and deep concepts. Because If you try to understand you may fall into a deep rabbit-hole. Lets avoid the rabbit-hole for now.

Given a 2D board and a list of words from the dictionary, find all words in the board. Each word must be constructed from letters of sequentially adjacent cell, where “adjacent” cells are those horizontally or vertically neighboring. The same letter cell may not be used more than once in a word.

Lets do the quick-start with Kafka broker service, and try some operations on it.

In order to use kafka in a Java we need to get the kafka-client library from the maven repository (maven or gradle can be used)

• Kafka allows us to decouple data-streams and applications
• Created by Linkedln, now Open Source project and maintainted by Confluent

One should be careful when using AWS lambda with environment variables. If you don’t pay attention you may end-up wondering why your function is not working as expected. I personally had an issue of using PATH variable, if say it more exactly process.environment.PATH with runtime: Node.js 12.x. Because in version Node.js 10.x you won’t face this problem.

When AWS ElasticBeanstalk informs about upcoming platform upgrades, we must take it seriously and prepare our CI scripts. Because when I first time saw the warning that says “Platform update scheduled”, didn’t pay much attention. When clicked for details it said:

In this blog I have collected some knowledges about OrientDB which is multi-model graph database. This blog can be referred to to some kind of fact checks about OrientDB.