> Ok, so the option "Allow Duplicate Job=no" can at least prevent multiple
> full backups of the same server in a row as stated before?

As others mentioned, I think it may help in your case but it may not 
completely solve the problem that you saw.  It looks like you had 5 
instances of the same job queued up at the same time.  Disallowing 
duplicate jobs would mean the last 4 would be canceled once queued (but 
after being upgraded to Full).  Now, if we assume your original Full job 
actually ended up running and completed successfully, your next instance 
of this job will still get upgraded to Full I suspect since it's going 
to see the canceled jobs as "newer" than that successful Full.  The 
problem, I think, is what I described here in bug 1882

"The original 5.2.13 behavior when determining if a failed job needs to 
be rerun was to look at the start time of the most recent successful 
backup. From there it would then see if any job had started since then 
and failed. As pointed out, this creates an issue when you have FULL 
jobs that tend to run longer than the time period between normal backups 
for those jobs. i.e. the job laps itself so to speak. Any new jobs would 
be upgraded to FULLs and then canceled since the original FULL was still 
running (this assumes that duplicate jobs are not allowed). But once the 
original FULL finished, Bacula was grabbing it's start time and then 
seeing those canceled FULL jobs that happened since the successful FULL 
was started. To me, it seems like looking at the end time of that 
successful job makes more sense."

The change I made was to have Bacula look at the real end time of the 
last successful job and then see if any jobs have failed since that 
time.  This fixed these type of issues for us.  Sorry that this probably 
doesn't help you with fixing it right now if you're running 7.0.x, but I 
think it does explain the behavior that you're seeing and also says that 
it is still there in 7.0.x

And just for completeness, these are the related settings that we run with:

Allow Duplicate Jobs = no
Cancel Lower Level Duplicates = yes
Cancel Queued Duplicates = yes
Cancel Running Duplicates = no
Rerun Failed Levels = yes

hope this helps,


--tom



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