mboxlist DB Snapshots are Not Happening

(Doc ID 1494916.1)

Last updated on SEPTEMBER 21, 2016

Applies to:

Oracle Communications Messaging Server - Version 7.0.0 to 7.0.4 [Release 7.0.0]
Information in this document applies to any platform.

Symptoms

The normal mboxlist snapshots are not happening, or happening only sporadically.

# ls -lrt <server-root>/data/store/dbdata/snapshots
total 18
drwx------   2 nsmail   netscape      11 Sep  2 02:05 002
drwx------   2 nsmail   netscape      11 Sep  9 02:05 003
drwx------   2 nsmail   netscape      11 Sep 15 02:05 004
drwx------   2 nsmail   netscape      11 Sep 16 02:05 005
drwx------   2 nsmail   netscape      11 Sep 24 18:27 001
drwx------   2 nsmail   netscape       2 Sep 25 02:07 roll
On ZFS, the size of the the directory (11 above for all but roll, which is 2) is the count of the number of files in the directory.

This shows that the NNN subdirs contain 9 files and the normal . and .. entries, but the roll directory is essentially empty.

The above was taken later in the day on September 25.  Note the date/times of the NNN directories.  The normal 02:00 snapshot -- as per the configutil option:

has only happened once every several days (i.e., September 2, 9, 15, 16, and 24).

And the roll directory, which should contain a rolling snapshot and should be updated every few minutes, is empty and has not been updated in several hours.

Changes

This could be related to normal growth of number of users or activity, but that was not a significant factor in this case.

Cause

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