[Bacula-bugs] [bacula 0002012]: reloading the director while a backup is in progress causing duplicate jobs

[Mantis B. T. <no...@bu...>]

The following issue has been SUBMITTED. 
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http://bugs.bacula.org/view.php?id=2012 
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Reported By:                mastermind
Assigned To:                
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Project:                    bacula
Issue ID:                   2012
Category:                   Director
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
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Date Submitted:             2013-06-16 21:32 BST
Last Modified:              2013-06-16 21:32 BST
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Summary:                    reloading the director while a backup is in progress
causing duplicate jobs
Description: 
we are currently in the process of implementing bacula for the postgresql.org
infrastructure, during initial testing we noticed that some of our backups are
actually running twice at almost the same time.
Further investigation showed that only jobs running at even hours are affected,
which coincidences with the interval we autogenerate our backup configuration.
What we do there is basically using an include directive in bacula-dir.conf
like:
@|"/bin/sh -c 'for f in /etc/bacula/conf.d/*.conf ; do echo @${f} ; done'"

and generating the configuration file for each host automatically, once that is
done we invoke bacula-dir -t to test the new file, if that succeeds we mv(1) the
old file to a backup location and mv(1) the new one in place, afterwards we
proceed to the next configuration file. once all succeeded in generation and
verification we send a "reload" (ie HUP) to the director.

this whole process takes around 3 seconds, the problem is that if a backup for
any of the clients is in progress another one will be scheduled 3-4 seconds
after the original one essentially resulting in two completely identical backups
being scheduled and run in parallel...

Steps to Reproduce: 
1. configure a dynamic include in your director configuration
2. start a backup run for that client
3. while the backup in progress, replace the configuration with an identical one
and send a HUP to the director

Additional Information: 
all boxes are on 5.2.6 (either from debian wheezy or for squeeze backports), all
components are using TLS
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Issue History 
Date Modified    Username       Field                    Change               
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2013-06-16 21:32 mastermind     New Issue                                    
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