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self-developing technical_communication

Mastering Technical Communication: Overcoming Challenges

Kate Belova Mar 8, 2023 0 Comments

Have you ever felt like banging your head over the wall of misunderstanding or lack of wording to describe a technical solution and prove your point of view? Oh my,…

DataOps DevOps self-developing

Expect unexpected

Kate Belova May 16, 2023 0 Comments

It was a super early and gloomy autumn morning, and Mother was packing me for the school trip to a day of forest camping. I was still only half awake…

BigData DataOps self-developing

DataOps: Code of Conduct

Kate Belova Apr 18, 2023 0 Comments

I'm often asked what DataOps is and how to be effective in it. DataOps is a relatively new term that refers to the practice of applying DevOps principles to data…

airflow BigData DataOps

HowTo: Apache Airflow with Docker on Linux

Kate Belova Mar 28, 2023 0 Comments

Here's a guide to setting up Apache Airflow with Docker on a Linux machine, with shared DAGs and plugins folder, extra plugins, specific Python packages on Airflow workers, and a…

airflow BigData DataOps

HowTo: install Apache Airflow with Rancher Desktop (MacOS)

Kate Belova Mar 28, 2023 0 Comments

Setting up Apache Airflow on macOS using Rancher Desktop involves several steps. In this guide, we'll walk you through installing Rancher Desktop, deploying a Kubernetes cluster, and deploying Airflow using…

Programming Python

Harnessing the Power of GraphQL and Python for Modern API Development

Val Mar 27, 2023 0 Comments

In today's fast-paced digital landscape, efficient API development is more critical than ever. GraphQL, a powerful query language developed by Facebook, has gained immense popularity for its ability to optimize…

Testing

End-to-end from frontend to backend with Catcher

Val Aug 2, 2020 0 Comments

Today Catcher's external modules 5.1.0 were finally released. Great news, everyone, as it adds a Selenium step for Frontend testing! What should a proper e2e test look like? Imagine you have a user service…

Testing

Testing Airflow data pipelines with Catcher end to end

Kate Belova May 20, 2020 0 Comments

This article is about writing end-to-end test for a data pipeline. It will cover Airflow, as one of the most popular data pipeline scheduler now days and one of the…

Testing

Catcher e2e tests tool for beginners

Val May 11, 2020 0 Comments

What is Catcher? It is an end-to-end test tool, specially designed to test systems containing many components. Initially developed as end-to-end microservices test tool it perfectly fits needs of data…

DevOps

Rollback for microservices with Ansible and Jenkins

Val Jun 18, 2019 0 Comments

Imagine your project consists of 4 microservices (3 backends, 1 frontend). Yesterday you introduced several new features and made a release. Unfortunately, your users have just reported a bug. Some…

DevOps

Microservices and continuous delivery

Val May 16, 2019 0 Comments

Imagine a typical situation – yesterday your devops engineer was eaten by a tiger. You a very sad because he didn’t finish the release system for your project. It contains…

Testing

End-to-end microservices testing with Catcher

Val May 16, 2019 0 Comments

I would like to introduce a new tool for end-to-end testing – Catcher. What is an e2e test? End-to-end test usually answers the questions like: “Was this user really created,…

DevOps

Ansible and Jenkins – automate your scritps

Val Apr 27, 2019 0 Comments

The topic I’d like to reveal in this article may seem obvious, but I was surprised how many companies don’t follow this best practice. For impatient: Automate every action you’ve…

BigData

HowTo: Run Cloudera Quickstart in Docker

Kate Belova Jan 31, 2019 0 Comments

The best way to familiarize yourself with the Hadoop ecosystem or to do proof of concept: is to play with it in a sandbox. Cloudera provides 2 Quick Start options:…

Programming Scala

Scala as backend language. Tips, tricks and pain

Val Jan 7, 2019 0 Comments

I’ve got a legacy service, written in Scala. Stack was: Play2, Scala, Slick, Postgres. Here is described why such technology stack is not the best option, what should be done…

Programming Python

Python & GraphQL. Tips, tricks and performance improvements.

Val Dec 16, 2018 0 Comments

Recently I’ve finished another back-end with GraphQL, but now on Python. In this article I would like to tell you about all difficulties I’ve faced and narrow places which can…

BigData

How to create avro based table in Impala

Kate Belova Nov 20, 2018 0 Comments

Consider the following situation: A bundle of .avro files is stored on HDFS. They need to be converted to Impala tables. Schemas are not provided with files, at least not…

Java Programming

GraphQL with Spring: Query and Pagination

Val Jul 24, 2018 0 Comments

In this article I’ll describe you how to use GraphQL with Spring with this library. Full example is available here. Why annotations? From my point of view schema should not…

DevOps Erlang Programming

Erlang service easy deploy with Enot

Val Feb 11, 2018 0 Comments

In this guide you’ll learn how to add deploy feature to the Erlang service. As a result you will get a real Erlang service, with logs in `/var/log/example_service`, systemd support…

Erlang Programming

Create Erlang service with Enot

Val Jan 7, 2018 0 Comments

This is step-by-step guide on how to create your Erlang service with the powerful Enot build system. Ensure you have Enot and Erlang installed locally. As a result you will…

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  • Expect unexpected
  • DataOps: Code of Conduct
  • HowTo: Apache Airflow with Docker on Linux
  • HowTo: install Apache Airflow with Rancher Desktop (MacOS)
  • Harnessing the Power of GraphQL and Python for Modern API Development

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You Missed

DataOps DevOps self-developing

Expect unexpected

BigData DataOps self-developing

DataOps: Code of Conduct

airflow BigData DataOps

HowTo: Apache Airflow with Docker on Linux

airflow BigData DataOps

HowTo: install Apache Airflow with Rancher Desktop (MacOS)

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