OpenStack Lessons from OpenStack Telemetry: Deflation This post is the second and final episode of Lessons from OpenStack Telemetry. If you have missed the first post, you can read it here. Splitting At some point, the rules relaxed on
OpenStack Lessons from OpenStack Telemetry: Incubation It was mostly around that time in 2012 that I and a couple of fellow open-source enthusiasts started working on Ceilometer, the first piece of software from the OpenStack Telemetry project. Six years
Python Is Python a Good Choice for Entreprise Projects? A few weeks ago, one of my followers, Morteza, reached out and asked me the following: I develop projects mostly with Python, but I am scared that Python is not a good choice
Gnocchi Gnocchi engine optimization Software speed is relative. After all, it is the result of a set of trade-offs made between the ease of programming and the speed of hardware. The comfort of the developer and its
Ghost On blog migration I've started my first Web page in 1998 and one could say that it evolved quite a bit in the meantime. From a Frontpage designed Web site with frames, it evolved to plain
Python Scaling a polling Python application with tooz This article is the final one of the series I wrote about scaling a large number of connections in a Python application. If you don't remember what the problem we're trying to solve
Python Scaling a polling Python application with asyncio This article is a follow-up of my previous blog post about scaling a large number of connections. If you don't remember, I was trying to solve one of my followers' problem: It so
Gnocchi Gnocchi 4.2 release The time of the release arrived. A little more than three months have passed since the latest minor version, 4.1, has been released. There are tons of improvement and a few nice
Python Scaling a polling Python application with parallelism A few weeks ago, Alon contacted me and asked me the following: It so happened that I'm currently working on scaling some Python app. Specifically, now I'm trying to figure out the best
Pastamaker A safe GitHub workflow with Pastamaker When the Gnocchi project decided to move to GitHub, we developers had to move from a Gerrit based workflow to a GitHub pull-request one. This has been challenging in some ways. We were
Books Scaling Python released I am proud to announce today the immediate release of Scaling Python, my second book about Python! It talks about the distribution and performance of applications written in Python, and how to build
Books Scaling Python: the interviewees The release date for Scaling Python is now very close! Today, I'd like to talk a bit about the interviews that I've run those last months that are featured in the book. I'm
Books Mastering PostgreSQL A few months ago, my friend Dimitri Fontaine and I discussed writing books and sharing our knowledge. If you do not know Dimitri yet, he is an old-time PostgreSQL Major Contributor – meaning he
Gnocchi Gnocchi 4.1 is out We did it again. A bit more of our usual four months were needed to do it, but Gnocchi 4.1 has been released. This is a great news and another big milestone
Interview My interview with Cool Python Codes A few days ago, I've recently been contacted by Godson Rapture from Cool Python codes to answer a few questions about what I work on in open source. Godson regularly interview developers and
Gnocchi Gnocchi 4 performance It has been a long time since I have tested Gnocchi performances. Last time was two years ago, on version 2. The current version for Gnocchi is 4.0, released a couple of
Talks Attending PyCon FR 2017 The French edition of the annual Python conference, PyCon FR, will happen in Toulouse from 21st to 24th September. I skipped the last few PyCon FR, but this year I will be back
Gnocchi Gnocchi or Prometheus? The realm of time series database keeps expanding those last years. Now and then a new contender appears from the fog. People keep asking me about the difference between Gnocchi and Prometheus. It's
Gnocchi Using Gnocchi with Docker I've recently started to look into Docker to build images ready to be used with Gnocchi in it. I found it would be a great way to distribute a working instance of Gnocchi.
Python Easy Python logging with daiquiri After more than 10 years of writing Python, there's something I always have been annoyed with: logging. Don't read me wrong: I like the Python logging subsystem. It's easy to use and works
Gnocchi Gnocchi 4 is out Finally! Four months ago we pushed the Gnocchi 3.1 release and here we are now, release the 4th major version of that timeseries database. A lot happened in the last 4 months.
GitHub Sending GitHub pull-request from your shell I've always been frustrated by the GitHub workflow. A while back I wrote how Gerrit workflow was superior to GitHub pull-request system. But it seems that GitHub listened and they improved the pull-request
OpenStack OpenStack Summit Boston 2017 recap The first OpenStack Summit of 2017 was last week, in Boston, MA, USA. I was able to attend as I've been selected to give 3 talks, to help for a hands-on and to
Gnocchi Gnocchi independence Three years have passed since I started working on Gnocchi. It's amazing to gaze at the path we wandered on. During all this time, Gnocchi has been "incubated" inside OpenStack. It
Python Python never gives up: the tenacity library A couple of years ago, I wrote about the Python retrying library. This library was designed to retry the execution of a task when a failure occurred. I started to spread usage of