[Bug 1709670] Re: logrotate never recovers if the statefile is corrupted

[Eric Desrochers]

Debdiff for devel release Artful.

** Patch added: "lp1709670-logrotate-artful.debdiff"
   https://bugs.launchpad.net/ubuntu/+source/logrotate/+bug/1709670/+attachment/4929643/+files/lp1709670-logrotate-artful.debdiff

** Tags added: patch

** Changed in: logrotate (Ubuntu Trusty)
       Status: New => Confirmed

** Changed in: logrotate (Ubuntu Zesty)
       Status: New => Confirmed

** Changed in: logrotate (Ubuntu Xenial)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1709670

Title:
  logrotate never recovers if the statefile is corrupted

Status in logrotate package in Ubuntu:
  In Progress
Status in logrotate source package in Trusty:
  Confirmed
Status in logrotate source package in Xenial:
  Confirmed
Status in logrotate source package in Zesty:
  Confirmed
Status in logrotate source package in Artful:
  In Progress
Status in logrotate package in Debian:
  Unknown

Bug description:
  [Impact]

  logrotate never recovers if the statefile is corrupted unless you remove it or fix the corruption by hand.
  System will eventually run out of disk space on /var/log for instance.

  [Test Case]

  - Install logrotate
  - Run "/etc/cron.daily/logrotate" ## The first logrotate run will generate the statefile "var/lib/logrotate/status"
  - Modify "/var/lib/logrotate/status" by removing the first line in order to corrupt the file
  - Re-run "/etc/cron.daily/logrotate" and one will get the following error : "error: bad top line in state file /var/lib/logrotate/status" every time you run logrotate

  Unless you remove the statefile and start again or fix the corruption
  by hand.

  [Regression Potential]

   * Risk of potential regression is low, and couldn' be worst than the actual situation where logrotate doesn't recover from a corrupt statefile.
     The current patch does recover (after verification)

  [Other Info]

  * Upstream commit:
  https://github.com/logrotate/logrotate/commit/b9d82003002c98370e4131a7e43c76afcd23306a

  * Upstream bug:
  https://github.com/logrotate/logrotate/issues/45

  * Debian bug:
  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=871592

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