[Bug 810736] Re: logrotate script needs to notify all samba processes when logs are rotated

[Andreas Hasenack]

Still confirmed, even in cosmic with samba 4.8. The smbcontrol reload-
config action still leaves processes hanging on to the rotated file.

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https://bugs.launchpad.net/bugs/810736

Title:
  logrotate script needs to notify all samba processes when logs are
  rotated

Status in samba package in Ubuntu:
  Confirmed

Bug description:
  After the log rotation, logrotate needs to notify all samba processes
  to release their open file descriptors on the log files.

  The current logrotate configuration file does not do so and only notify the process that has it's PID stored /var/run/samba/.
  This is wrong as other child will keep logging to the "deleted" files and may use all the disk space. Those "deleted" files are not showing in ls output but they are still consuming space in the file system.

  I think the right solution to this bug would be to have logrotate to
  call "smbcontrol all reload-config". This solution was proposed by
  Andrew Bartlett, a Samba developer, in this email
  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=160076#25. The
  smbcontrol utility will notify all related daemons (smbd, nmbd and
  winbindd) and their child processes to re-open a new log file.

  I have confirmed that this problem affects Samba from Lucid to Natty
  at least.

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