Gauging Project Health (2009)

Mailing List Participation

The following plot (courtesy of Gmane), shows the steadily increasing post rate for cassandra-user during 2009. Note: There are two mailing lists (-user and -dev), but most traffic goes to -user regardless of topic.

cassandra-user Post Frequency

Code Contributions

This plot shows the estimated number of unique contributors on a week-by-week basis. Unique contributors

Similar to the plot above, this shows unique contributors, but broken down by month instead of week. Unique contributors

Committership / PPMCship

The following membership changes have occurred in the time since the projects initial setup.

Date

PPMC?

Jonathan Ellis

2009-03-26

Yes

Eric Evans

2009-06-29

Yes

Jun Rao

2009-06-29

Yes

Chris Goffinet

2009-10-05

Yes

Johan Oskarsson

2009-11-19

No

Gary Dusbabek

2009-12-16

No

Jaakko Laine

2009-12-16

No

That is, 7 new commiters 1 in a little over 9 months2, more than half of which have been added to the PPMC.

Releases

The project's first release was in July; there have since been 8 new releases cut.

Date

0.3.0

2009-07-20

0.4.0-beta1

2009-08-17

0.4.0-rc2

2009-09-16

0.4.0

2009-09-26

0.4.1

2009-10-16

0.4.2

2009-11-09

0.5.0-beta1

2009-11-20

0.5.0-beta2

2009-12-09

0.5.0-rc1

2009-12-31

IRC Participation

IRC is a popular communication medium in the Cassandra community. Most of the active developers/contributors participate in discussions on #cassandra and field questions from others. This plot shows the average number of people (by week) in #cassandra during 2009.

IRC Participation Plot

Other Stuff

stats

  1. spanning at least 5 organizations (1)

  2. Starting 2009-03-26 when the first post-setup committer was added, ending 2009-12-30 (2)

ProjectHealth2009 (last edited 2013-11-15 00:26:28 by GehrigKunz)