Item 1: (Optionally) force backups to be upgraded more aggressively Origin: Scott Bailey <scott dot bailey at eds dot com> Date: 7 February 2008 Status: "I can't believe he did that" draft patch attached
What: Add "Max Full Age" specifier to job definitions
Why: Bacula's current behavior is to force an incremental or
differential backup to be upgraded to a full backup if
no previous
successful backup is found. In practice, this means that
bacula
discovers no full backup exists and tries to create a
replacement
*AFTER* you have eliminated your last good full backup.
:-(
This proposal allows this behavior to be modified, i.e.
addition
of "Max Full Age = 1 month" to a job definition causes
the next
backup to become a full backup if no full has completed
successfully during the previous month. This provides a
proactive
safety net in the event jobs, retries, etc. have not
succeeded in
generating a good full backup within some expected
interval.
It also simplifies scheduling for sites (such as my
house) where
precise scheduling of backups is unimportant but the
general cycle
is known. Presently, multiple systems on the same
schedule have
full backups that pile up; jobs at the end of the queue
time out
and are cancelled before they can run. They then tend
not to be
noticed, resulting in an endless chain of incrementals
in the event
a restore is required. The proposed behavior allows a
simple daily
incremental schedule with a suitable Max Full Age
specifier to
automatically generate full backups as required without
further
attention or intervention.
Notes: If this specifier is not used, existing behavior is preserved.
It is anyone's guess if the logic in the attached patch
actually
works as I intended or described. :-) It compiles
against head
without errors.
bacula.mfa.patch
Description: bacula.mfa.patch
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