Current state of Jenkins

JenkinsProject Update
Kohsuke Kawaguchi

Divorce
Infra issues in java.net led to the question over the control by Oracle (Nov 2010)
Trademark was used as a weapon
Led to discussion with Oracle offline to transfer the trademark custody to 3rd party foundation
Negotiation failed. Vote proposed to rename Hudson to Jenkins (Jan 2011)
Subsequently approved by 214-to-14

Jenkins Project Since Then
http://jenkins-ci.org/
3 people interim governance board
Myself
Andrew Bayer from Cloudera
Dean Yu from Yahoo
In process of …
Registering trademark
Seeking an umbrella organization for holding assets, CLA, etc.

Development in Jenkins Project
Most Hudson developers moved to Jenkins
733 commits since the divorce (vs 172)
42% by community (vs 1%)
By 48 people (vs 7)
More contributions after divorce
170 pull requests (vs 20)
11.3 change log items per release (vs 6.7 before)
94 publicized committers on GitHub (vs 4)
496 repositories (vs 1)

Development in Jenkins Project
Plugin development moved to Jenkins
Showing # of commits in Hudson plugins
Of 25 top plugins
21 moved to Jenkins
4 had no commits
40 new plugins since the split (vs 1)

Delivering what users need
Iterative, compatible improvements over the codebase
Changes that actually deliver values to users
Just like we’ve been doing all along
Bugs/RFEs are getting delivered
282 tickets fixed (vs 68)
514 tickets created (vs 129)

Users are following
Public Hudson sites moving to Jenkins
Apache, JRuby, NASA, Nuxeo, Scala, PiWiki, CreativeCommons, OpenIndiana, …
Users list traffic
1280 e-mails (vs 259)
Downloads are healthy
8132 war, 2733 deb, 1237 rpm, 1320 zip (per week)
OS Distributions are switching
Ubuntu, FreeBSD, OpenBSD

Users are following

New Initiatives
Bi-weekly governance meeting
Held on IRC, open to everyone
Discuss project issues and ideas
Minutes open to anyone: http://meetings.jenkins-ci.org/
Turns out very useful in …
Getting fresh people into project
Creating stronger bonds among developers

“Stable But Older” Release Line
Main release line
The main release line continues as is
Each releases goes through all our automated tests
Fork a maintenance branch every 3 months from a release
Only proven backported fixes from mainline
Monthly release
Hopefully 1.400.1 in May

Goal of “Stable But Older” Release Line
Help those who value stability more than new features
Slower release cycles, more conservative changes
Provide focal point for people doing their own QA
Often a team in large company does this

Plugin compatibility testing
Frederic Camblor is driving this effort
Rerun plugin tests against the latest version of Jenkins
Should help us catch regressions earlier

Plugins in JRuby
Charles Lowell is driving this effort
Jenkins used more and more in languages like Ruby, PHP, Python
Those users would like to write plugins in their languages, not in Java
Hopefully attract new wave of plugin developers

My Focus in Core
Serve plugin developers technically
More extension points
Better cross-referencing existing plugins
Technologies to simplify their code
Serve plugin developers socially
Hackathons, documentation
Restore infrastructure support

My Focus in Core
Continue housekeeping work
Improved modularity
Bug fixes, better error diagnostics, smoothing out rough edges
Better native packaging
Push features along development themes
But do so by writing plugins

New Logo Contest: Run-off
Closes next Monday

Conclusion
Jenkins project is thriving
Users & devs are voting with their feet
More formal & transparent governance
New initiatives
New release model
Better plugin compatibility testing
Plugin development for other languages

Q&A
Upcoming Meetups
4/13 San Francisco
5/1 Paris
5/20 Tokyo
5/28 Hamburg
Resources
http://jenkins-ci.org/
Twitter: @jenkinsci

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Current state of Jenkins

by Kohsuke Kawaguchi on May 04, 2011

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