Tag: Community Linux Engineering (CLE) @ Red Hat (page 1 of 23)

Posts about the Community Linux Engineering (CLE) team at Red Hat.

End of Community update

Last few years a small team of people in the CLE Team were working each week to prepare a Community update for you. First one published on October 21st 2021. We were starting with only Infrastructure and Release Engineering teams (+ initiatives we did in CPE Team at the time), but later added more teams to our weekly reports to bring people a better picture what is being worked on. We thank to everyone who read our updates and found some value in them.

But as life is going forward even this updates are evolving. Last few weeks @abompard worked together with us to improve his weekly report to include the sources we are using for this weekly reports. So I introduce to you This Week in Fedora as a replacement for Community weekly updates. I’m glad that this initiative I started few years ago was able to live for that long and hopefully helped a few people to find information they were looking for.

I would like to thank people who helped me working on Community weekly updates:

  • @lenkaseg
  • @jnsamyak
  • @c4rt0
  • @jskladan
  • @t0xic0der
  • @siddharthvipul1
  • @patrikp

Community Update – Week 11

This is a report created by CLE Team, which is a team containing community members working in various Fedora groups for example Infrastructure, Release Engineering, Quality etc. This team is also moving forward some initiatives inside Fedora project.

Week: 09 – 13 March 2026

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Community Update – Week 8 2026

This is a report created by CLE Team, which is a team containing community members working in various Fedora groups for example Infrastructure, Release Engineering, Quality etc. This team is also moving forward some initiatives inside Fedora project.

Week: 16 Feb – 20 Feb 2026

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Introducing MetaSource (or MDAPI 4)

We are excited to announce the general availability of the MetaSource (or MDAPI 4) in both the staging and production Fedora Infrastructure environments. The release includes an architectural rewrite of the MDAPI from Python to Go, making it a performant source of RPM repositories metadata as a REST service with 1:1 API compatibility. More details about the developments and acknowledgements are below.

Rewrite

The project faced a critical challenge due to its dependence on SQLite3-based RPM repositories metadata which were deprecated by the Fedora Linux 41 release. Rather than applying temporary workarounds on the existing codebase, we took this opportunity to fundamentally redesign the project. The improvements included optimized processing of XML-based RPM repositories metadata, swifter response towards HTTP REST operations, interactive documentation for ecosystem experience, stellar coverage across functional testcases among other things. The move from Python to Go programming language allowed us to take advantage of the performance benefits and resource efficiency – all while ensuring that the solution stays simple enough to maintain for a high-throughput HTTP service for a cloud-native first deployment.

Comparison

Sustained querying

ServicesSample
Count
Total
Duration
Per request
Duration
MDAPI
MDAPI v3.1.7
1000 requests63 minutes, 3 seconds3.7828 seconds
MetaSource
MDAPI v4.0.0
1000 requests42 minutes, 30 seconds2.5505 seconds
ServicesAverage
Memory
Minimum
Memory
Maximum
Memory
MDAPI
MDAPI v3.1.7
157.09 MiB
160,861 KiB
99.16 MiB
101,544 KiB
204.34 MiB
209,248 KiB
MetaSource
MDAPI v4.0.0
109.72 MiB
112,350 KiB
81.66 MiB
83,616 KiB
174.52 MiB
178,712 KiB

MetaSource (or MDAPI v4.0.0) performs roughly 33% faster than MDAPI v3.1.7 while using about 30% lesser memory than that on sustained querying operations. This means that MetaSource would be able to address approx 50% additional requests without furthering resource consumption. Please note that the results may vary depending on unknown variables like network bandwidth and querying nature.

Concurrent querying

ServicesSample
Duration
Total
Count
Per request
Duration
MDAPI
MDAPI v3.1.7
500 seconds148 requests7.3615 seconds
MetaSource
MDAPI v4.0.0
500 seconds310 requests3.5530 seconds
ServicesAverage
Memory
Minimum
Memory
Maximum
Memory
MDAPI
MDAPI v3.1.7
217.41 MiB
222,625 KiB
136.73 MiB
140,008 KiB
289.93 MiB
296,888 KiB
MetaSource
MDAPI v4.0.0
187.02 MiB
191,510 KiB
130.68 MiB
133,816 KiB
257.44 MiB
263,624 KiB

MetaSource (or MDAPI v4.0.0) performs roughly 52% faster than MDAPI v3.1.7 while using about 14% lesser memory than that on concurrent querying operations. This means that MetaSource would be able to address approx 110% additional requests without furthering resource consumption. Please note that the results may vary depending on unknown variables like network bandwidth and querying nature.

Appeal

This project would not have been possible without the help of Akashdeep Dhar, Kevin Fenzi, David Kirwan, Michal Konecny, James Antill, Steve Milner, Shounak Dey and countless others who have either contributed to Fedora Infrastructure projects ecosystem or the createrepo_c project. We ask the readers to contribute to the project by developing, maintaining, testing or documenting the project.

Introducing User Interface for Webhook To Fedora Messaging

As a part of our move from Fedmsg to Fedora Messaging in the last year, we announced the general availability of the Webhook To Fedora Messaging service. While the project was developed to replace the (now decommissioned) GitHub2Fedmsg service, we did not have a user interface for managing webhook binds with Fedora Messaging. The migrating users of the GitHub2Fedmsg service had to hence request for the creation of webhook binds via an issue tracker and the incoming users had to utilize the Swagger UI to create the webhook binds by themselves – which worked just fine but was definitely not ideal.

Given that since then, the project has evolved significantly into an ecosystem of Webhook-based communications to the Fedora Messaging. The support for Forgejo and GitLab repositories was added to support the Fedora Project’s and CentOS Project’s transitions to these platforms respectively. With active discussions around the frontend requests and design architectures, we finally came around to making an interactive user interface available for the Webhook To Fedora Messaging users. Please feel free to give it a try on the production environment and consider helping with the maintenance efforts of the project!

Infra and RelEng Update – Week 32

This is a weekly report from the I&R (Infrastructure & Release Engineering) Team. We provide you both infographic and text version of the weekly report. If you just want to quickly look at what we did, just look at the infographic. If you are interested in more in depth details look below the infographic.

Week: 04 Aug – 08 Aug 2025

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Infra and RelEng Update – Week 31, 2025

This is a weekly report from the I&R (Infrastructure & Release Engineering) Team. We provide you both infographic and text version of the weekly report. If you just want to quickly look at what we did, just look at the infographic. If you are interested in more in depth details look below the infographic.

Week: 28th July – 01st August, 2025

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Infra and RelEng Update – Week 30 2025

This is a weekly report from the I&R (Infrastructure & Release Engineering) Team. We provide you both infographic and text version of the weekly report. If you just want to quickly look at what we did, just look at the infographic. If you are interested in more in depth details look below the infographic.

Week: 21st – 25th July 2025

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Infra and RelEng Update – Week 29

This is a weekly report from the I&R (Infrastructure & Release Engineering) Team. We provide you both infographic and text version of the weekly report. If you just want to quickly look at what we did, just look at the infographic. If you are interested in more in depth details look below the infographic.

Week: 14 July – 18 July 2025

Infrastructure & Release Engineering

The purpose of this team is to take care of day to day business regarding CentOS and Fedora Infrastructure and Fedora release engineering work.
It’s responsible for services running in Fedora and CentOS infrastructure and preparing things for the new Fedora release (mirrors, mass branching, new namespaces etc.).
List of planned/in-progress issues

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Infra and RelEng Update – Week 28 2025

This is a weekly report from the I&R (Infrastructure & Release Engineering) Team. We provide you both infographic and text version of the weekly report. If you just want to quickly look at what we did, just look at the infographic. If you are interested in more in depth details look below the infographic.

Week: 7th – 11th July 2025

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