[Bug 1670400] [NEW] Excessive dbwrap_watch.c messaging_send messages in log

[Owen Dunn]

Public bug reported:

Description:    Ubuntu 14.04.5 LTS
Release:        14.04

Samba Version: 2:4.3.11+dfsg-0ubuntu0.14.04.4

Samba appears to be working fine for us, but the log files in
/var/log/samba are full of lines like:

[2017/03/06 15:37:55.927454,  1] ../source3/lib/dbwrap/dbwrap_watch.c:362(dbwrap_watch_record_stored)
  messaging_send to 5902 failed: NT_STATUS_OBJECT_NAME_NOT_FOUND

coming in occasional bursts of about five within a second.

Looking around the documentation for dbwrap I find that 5902 is supposed
to be a pid that's registered an interest in some tdb file, and indeed:

dbwrap_tool --persistent passdb listwatchers

...does list 15116 and 5902.  (Actually, you can put anything in there
in place of passdb...) However, neither process exists, so it's not
surprising that samba can't send messages to them.  Can these `dead
watchers' be removed?  Is there a way to stop them hanging around in the
first place?

Thanks,

Owen

** Affects: samba (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1670400

Title:
  Excessive dbwrap_watch.c messaging_send messages in log

Status in samba package in Ubuntu:
  New

Bug description:
  Description:    Ubuntu 14.04.5 LTS
  Release:        14.04

  Samba Version: 2:4.3.11+dfsg-0ubuntu0.14.04.4

  Samba appears to be working fine for us, but the log files in
  /var/log/samba are full of lines like:

  [2017/03/06 15:37:55.927454,  1] ../source3/lib/dbwrap/dbwrap_watch.c:362(dbwrap_watch_record_stored)
    messaging_send to 5902 failed: NT_STATUS_OBJECT_NAME_NOT_FOUND

  coming in occasional bursts of about five within a second.

  Looking around the documentation for dbwrap I find that 5902 is
  supposed to be a pid that's registered an interest in some tdb file,
  and indeed:

  dbwrap_tool --persistent passdb listwatchers

  ...does list 15116 and 5902.  (Actually, you can put anything in there
  in place of passdb...) However, neither process exists, so it's not
  surprising that samba can't send messages to them.  Can these `dead
  watchers' be removed?  Is there a way to stop them hanging around in
  the first place?

  Thanks,

  Owen

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