Articles published in 2022
Big data infrastructure internship
Categories: Big Data, Data Engineering, DevOps & SRE, Infrastructure | Tags: YARN, Data Engineering, DevOps, Infrastructure, Ansible, Hadoop, Big Data, Cluster, GitOps, Vagrant, Internship, Kubernetes, TDP
Job description Big Data and distributed computing are at the core of Adaltas. We accompagny our partners in the deployment, maintenance, and optimization of some of the largest clusters in France…
By Stephan BAUM
Dec 2, 2022
Traefik, Docker and dnsmasq to simplify container networking
Categories: Containers Orchestration, Infrastructure, Tech Radar | Tags: Gatsby, JAMstack, Linux, Docker, Network
Good tech adventures start with some frustration, a need, or a requirement. This is the story of how I simplified the management and access of my local web applications with the help of Traefik and…
By David WORMS
Nov 17, 2022
WasmEdge: WebAssembly runtimes are coming for the edge
Categories: Containers Orchestration, Adaltas Summit 2021, Infrastructure, Tech Radar | Tags: JAMstack, Linux, Docker, Rust Lang, WebAssembly
With many security challenges solved by design in its core conception, lots of projects benefit from using WebAssembly. WasmEdge runtime is an efficient Virtual Machine optimized for edge computing…
Sep 29, 2022
Ingresses and Load Balancers in Kubernetes with MetalLB and nginx-ingress
Categories: Containers Orchestration, Infrastructure, Tech Radar | Tags: Ingress, Kubeadm, Cluster, Deployment, Kubernetes
When it comes to exposing services from a Kubernetes cluster and making it accessible from outside the cluster, the recommended option is to use a load-balancer type service to redirect incoming…
Sep 8, 2022
Spark on Hadoop integration with Jupyter
Categories: Adaltas Summit 2021, Infrastructure, Tech Radar | Tags: YARN, HDP, Infrastructure, Jupyter, Kerberos, LDAP, R, Spark, CDP, Notebook, Python, Scala, TDP
For several years, Jupyter notebook has established itself as the notebook solution in the Python universe. Historically, Jupyter is the tool of choice for data scientists who mainly develop in Python…
Sep 1, 2022
Framework laptop with NixOS, a user feedback
Categories: Learning, Tech Radar | Tags: Arch Linux, CentOS, CLI, DevOps, Learning and tutorial, Linux, OS X, Packaging, Ubuntu, NixOS, Open source
A new job comes with a new laptop. As such, I was given a Framework Laptop DIY Edition with the objective to install and configure it entirely with NixOS. I will share my first impressions after…
Aug 22, 2022
Ceph object storage within a Kubernetes cluster with Rook
Categories: Big Data, Data Governance, Learning | Tags: Amazon S3, Big Data, Ceph, Cluster, Data Lake, Kubernetes, Storage
Ceph is a distributed all-in-one storage system. Reliable and mature, its first stable version was released in 2012 and has since then been the reference for open source storage. Ceph’s main perk is…
By Luka BIGOT
Aug 4, 2022
MinIO object storage within a Kubernetes cluster
Categories: Big Data, Data Governance, Learning | Tags: Amazon S3, Big Data, Cluster, Data Lake, Kubernetes, Storage
MinIO is a popular object storage solution. Often recommended for its simple setup and ease of use, it is not only a great way to get started with object storage: it also provides excellent…
By Luka BIGOT
Jul 9, 2022
Architecture of object-based storage and S3 standard specifications
Categories: Big Data, Data Governance | Tags: Database, API, Amazon S3, Big Data, Data Lake, Storage
Object storage has been growing in popularity among data storage architectures. Compared to file systems and block storage, object storage faces no limitations when handling petabytes of data. By…
By Luka BIGOT
Jun 20, 2022
TDP workshop: Become a TDP power user from your terminal
Categories: Events, Learning | Tags: DevOps, Ansible, Hadoop, Open source, TDP
The TDP CLI is used to deploy and operate your TDP services. It relies on tdp-lib to provide control and flexibility at your fingertips. Some time ago, we announced the public release of TDP - Trunk…
By Paul FARAULT
Jun 17, 2022
Comparison of database architectures: data warehouse, data lake and data lakehouse
Categories: Big Data, Data Engineering | Tags: Data Governance, Infrastructure, Hive, Iceberg, ORC, Parquet, Spark, Data Lake, Lakehouse, Data Warehouse, Delta Lake, File Format
Database architectures have experienced constant innovation, evolving with the appearence of new use cases, technical constraints, and requirements. From the three database structures we are comparing…
By Gonzalo ETSE
May 17, 2022
NixOS: Enabling LXD virtual machines using Flakes
Categories: Hack, Learning | Tags: GitHub, Learning and tutorial, Linux, LXD, Packaging, VM, NixOS, Open source
Nixpkgs is an ever-increasing collection of software packages for Nix and NixOS. Even with more than 80,000 packages, you easily run in a situation where there is a functionality that is not yet…
May 13, 2022
Databricks logs collection with Azure Monitor at a Workspace Scale
Categories: Cloud Computing, Data Engineering, Adaltas Summit 2021 | Tags: DevOps, Metrics, Monitoring, Spark, Azure, Databricks, Log4j, SRE, Streaming
Databricks is an optimized data analytics platform based on Apache Spark. Monitoring Databricks plateform is crucial to ensure data quality, job performance, and security issues by limiting access to…
By Claire PLAYE
May 10, 2022
Introducing Trunk Data Platform: the Open-Source Big Data Distribution Curated by TOSIT
Categories: Big Data, DevOps & SRE, Infrastructure | Tags: Ranger, DevOps, Hortonworks, Ansible, Hadoop, HBase, Knox, Spark, Cloudera, CDP, CDH, Open source, TDP
Ever since Cloudera and Hortonworks merged, the choice of commercial Hadoop distributions for on-prem workloads essentially boils down to CDP Private Cloud. CDP can be seen as the “best of both worlds…
Apr 14, 2022
Blockchain 102: Cryptocurrencies, Wallets and DApps
Categories: Adaltas Summit 2021, Infrastructure | Tags: Cryptography, Infrastructure, Blockchain, Consensus
A lot of people own cryptocurrencies today. But holding some tokens on an exchange does not mean interacting with the blockchain. The assets you trade are only numbers stored inside the exchange’s…
Apr 12, 2022
JS monorepos in prod 7: Continuous Integration and Continuous Deployment with GitHub Actions
Categories: DevOps & SRE, Front End | Tags: CI/CD, Monorepo, Node.js, Unit tests
The value of CI/CD lies in the ability to control and coordinate changes and feature addition in multiple, iterative releases while simultaneously having multiple services being actively developed in…
Apr 6, 2022
Nix package creation: install a not yet supported font
Categories: Hack | Tags: Learning and tutorial, Linux, Packaging, GitOps, NixOS, Open source
The Nix packages collection is large with over 60 000 packages. However, chances are that sometimes the package you need is not available. You must integrate it yourself. I needed for some fonts which…
By David WORMS
Mar 29, 2022
Deploy your containerized AI applications with nvidia-docker
Categories: Containers Orchestration, Data Science | Tags: containerd, DevOps, Learning and tutorial, NVIDIA, Container, Deep Learning, Docker, Docker Compose, Keras, TensorFlow
More and more products and services are taking advantage of the modeling and prediction capabilities of AI. This article presents the nvidia-docker tool for integrating AI (Artificial Intelligence…
Mar 24, 2022
Ansible variables: choosing the right location
Categories: DevOps & SRE | Tags: Infrastructure, Ansible, IaC, Python, YAML
Defining variables for your Ansible playbooks and roles can become challenging as your project grows. Browsing the Ansible documentation, the diversity of Ansible variables location is confusing, to…
Mar 15, 2022
Apache HBase: RegionServers co-location
Categories: Big Data, Adaltas Summit 2021, Infrastructure | Tags: Ambari, Database, HDP, Infrastructure, Tuning, Hadoop, HBase, Big Data, Storage
RegionServers are the processes that manage the storage and retrieval of data in Apache HBase, the non-relational column-oriented database in Apache Hadoop. It is through their daemons that any CRUD…
Feb 22, 2022
Reliable and reproducible Linux installation with NixOS
Categories: Infrastructure, Learning | Tags: Arch Linux, CentOS, Linux, OS X, Packaging, Ubuntu, VM, NixOS, TDP
When using an operating system, upgrading packages or installing new ones are common tasks that introduce the risk of affecting the stability of the system. NixOS is a Linux distribution that ensures…
Feb 8, 2022
Nix introduction, main concepts and commands
Categories: Infrastructure, Learning | Tags: Arch Linux, CentOS, Linux, OS X, Packaging, Ubuntu, NixOS, TDP
Nix is a functional package manager for Linux and other Unix systems, making the management of packages more reliable and easy to reproduce. With a traditional package manager, when updating a package…
Feb 1, 2022
Blockchain 101: Blockchains and Consensus Mechanisms
Categories: Adaltas Summit 2021, Infrastructure, Learning | Tags: Cryptography, Infrastructure, Blockchain, Consensus
Cryptocurrencies are booming in 2021, with a market cap moving from 750 to more than 3,000 billion dollars. Let’s face it, this is mainly due to speculation. A lot of people involved do not have a…
Jan 18, 2022
