Bug Severity Distribution: Savannah Statistics Example

  • For this example we want to see the severity distribution of bugs from 1/1/2009 to 10/9/2010.
  • While investigating these values we want to figure out why the time to close a critical bug in the PriorityBug metric is in access of 100 days.

Bug Severity distribution for the whole project between 1/1/2009 and 9/9/2010

It can be seen that there are no critical severity bugs that were opened in the past year that are still open: However, there are a number of bugs opened from 1/1/2009 that are critical and still pending:
totalBugSeverity.Jan2010.png totalBugSeverity.Jan2009.png

Per product team severity bugs (and normalised version)

To ascertain what product teams are responsible for the critical bug we can run a query on all bug gathered thoughtout the project and then normalise them to show up the critical ones more clearly:
unnormalised-bugCategory.png normalised-bugCategory.png

Further investigation

  • It appears that Gridsite, externals and security are the only groups that might show critical bugs processed since 1/1/2004 (since Savannah existed) that might be still open.
  • Therefore each product team needs a further check to see which bugs are actually still open:

Gridsite.bugSeverity.Jan2009.png externals.bugSeverity.Jan2009.png security.bugSeverity.Jan2009.png

Corroboration using Savannah

  • So it appears that there are no outstanding security bugs which is good news, however there does seem to be some gridsite and external dependency issues marked as critical. This needs to be corroborated within Savannah directly to confirm there is an issue.

  • A full query can be run using:
    https://savannah.cern.ch/bugs/index.php?go_report=Apply&group=jra1mdw&func=browse&set=custom&msort=0&report_id=101&advsrch=1&assigned_to[]=0&severity[]=6&bug_id=&resolution_id[]=0&category_id[]=0&priority[]=0&status_id[]=1&summary=&history_search=0&history_field=0&history_event=modified&history_date_dayfd=9&history_date_monthfd=9&history_date_yearfd=2010&chunksz=50&spamscore=5&boxoptionwanted=1#options
      
    savannah.Check2009.png

-- EamonnKenny - 10-Sep-2010

Topic attachments
I Attachment History Action Size Date Who Comment
PNGpng Gridsite.bugSeverity.Jan2009.png r1 manage 22.6 K 2010-09-09 - 17:52 UnknownUser  
PNGpng externals.bugSeverity.Jan2009.png r1 manage 22.8 K 2010-09-09 - 17:52 UnknownUser  
PNGpng normalised-bugCategory.png r1 manage 55.8 K 2010-09-09 - 17:45 UnknownUser  
PNGpng savannah.Check2009.png r1 manage 121.7 K 2010-09-09 - 17:41 UnknownUser  
PNGpng security.bugSeverity.Jan2009.png r1 manage 20.8 K 2010-09-09 - 17:52 UnknownUser  
PNGpng totalBugSeverity.Jan2009.png r1 manage 20.5 K 2010-09-09 - 17:58 UnknownUser  
PNGpng totalBugSeverity.Jan2010.png r1 manage 20.7 K 2010-09-09 - 17:46 UnknownUser  
PNGpng unnormalised-bugCategory.png r1 manage 56.2 K 2010-09-09 - 17:44 UnknownUser  
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