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[Launchpad Bug Tracker <1747765@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package cups - 2.1.3-4ubuntu0.9

---------------
cups (2.1.3-4ubuntu0.9) xenial; urgency=medium

  * d/p/0045-Fix-an-issue-with-PreserveJobHistory-and-time-values.patch
    Fix an issue with `PreserveJobHistory` and time values
    (Issue #5538, Closes: #921741, LP: #1747765)

 -- Dariusz Gadomski <dariusz.gadomski@xxxxxxxxxxxxx>  Thu, 30 May 2019
11:33:26 +0200

** Changed in: cups (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1747765

Title:
  PreserveJobHistory and PreserveJobLog do not respect numeric input as
  outlined in the docs

Status in cups package in Ubuntu:
  Fix Released
Status in cups source package in Xenial:
  Fix Released
Status in cups source package in Bionic:
  Fix Released
Status in cups source package in Cosmic:
  Fix Released
Status in cups source package in Disco:
  Fix Released

Bug description:
  [Impact]

   The documentation allows the following types of arguments for the PreserveJobHistory parameter:
  PreserveJobHistory Yes
  PreserveJobHistory No
  PreserveJobHistory seconds

  The value in seconds is treated in the same as 'No' resulting in
  immediate removing of jobs from history, while it is supposed to save
  it for <seconds>.

  [Test Case]

   1. Set PreserveJobHistory to 30. Set LogLevel to debug.
   2. Schedule a job for printing.
   3. Check the error_log.
   4. Set PreserveJobHistory to No. Repeat 2-3.
   5. Set PreserveJobHistory to Yes. Repeat 2-3.
   

  Expected result (for PreserveJobHistory values):
  30: Job is save for at least 30 seconds.
  No: Job is removed right after processing.
  Yes: Job is never removed.

  Actual results (for PreserveJobHistory values):
  30: Job is immediately removed from history.
  No: Job is removed right after processing.
  Yes: Job is never removed.

  [Regression Potential]

   * With the fix the jobs will be saved longer than before, so in tight
  conditions (low disk space) and heavy workload it may affect
  memory/disk space consumption and lead to running out of free space in
  worst case.

  [Other Info]

   * Original bug description:

  1) Ubuntu Release
  Description:	Ubuntu 16.04.3 LTS
  Release:	16.04

  2) Version of the package
  cups:
    Installed: 2.1.3-4ubuntu0.3
    Candidate: 2.1.3-4ubuntu0.3
    Version table:
   *** 2.1.3-4ubuntu0.3 500
          500 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages

  3) What I expected to happen:
  from man cupsd.conf

        PreserveJobFiles Yes

         PreserveJobFiles No

         PreserveJobFiles seconds
              Specifies  whether  job files (documents) are preserved after a job is printed.  If a numeric value is specified, job files are preserved
              for the indicated number of seconds after printing.  The default is "86400" (preserve 1 day).

         PreserveJobHistory Yes

         PreserveJobHistory No

         PreserveJobHistory seconds
              Specifies whether the job history is preserved after a job is printed.  If a numeric value is specified, the job history is preserved for
              the  indicated number of seconds after printing.  If "Yes", the job history is preserved until the MaxJobs limit is reached.  The default
              is "Yes".

  4) What happens instead....

  If I put the following directives in cupsd.conf the job files and
  history are deleted immediately.

  PreserveJobFiles 604800
  PreserveJobHistory 604800

  Debug log showing history being purged:
  d [06/Feb/2018:15:11:59 -0600] cupsdCheckJobs: 0 active jobs, sleeping=0, ac-power=-1, reload=0, curtime=1517951519
  d [06/Feb/2018:15:11:59 -0600] cupsdCleanJobs: MaxJobs=100, JobHistory=604800, JobFiles=604800
  D [06/Feb/2018:15:11:59 -0600] [Job 106] Removing from history.
  D [06/Feb/2018:15:11:59 -0600] [Job 106] Unloading...

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