Dear developing team,
We are working on an improvement of the
job scheduler currently implemented in Bacula and we are wondering if
you could be interested in our work..
The new features of the scheduler
are the following:
The FCFS algorithm used in Bacula
is replaced by a dynamic strategy.
At
run
time,
a dynamic priority value is associated to each job.
An
aging
process is in charge of periodically updating the dynamic
priority
of each job, increasing the importance of the job as time goes
by.
The job with the highest dynamic
priority is the first to run.
New job behaviors can be defined
A job can run at regular
intervals with respect to last instance’s
planned start time,
actual start time,
completion time.
Time windows can be defined for
each job in which the job must not be started by the scheduler.
Preferred time windows can be
set for a job’s start time.
A
job can be configured to run
before its planned start time if
the system is under specific conditions
A
recovery
strategy can
be enabled:
In case of a system failure
(e.g. after a shutdown of the backup server for maintenance)
The scheduler is able to
recalculate the expected schedule as if the system did
not fail.
This means that jobs that have
not run for a long period, are likely to be run first.
In case of a job failure (e.g.
the node to be backed up is temporarily unavailable)
The job can
be rescheduled again after a configurable delay.
We want to point out that our work
can be related to item 14 and item 15 of the Bacula Project Roadmap.
Who should we
contact for a deeper discussion on the subject?
Kind Regards,
Paolo Di Francesco,
paolo_p...@hotmail.com
Stefano Stalio,
stefano.sta...@lngs.infn.it ------------------------------------------------------------------------------
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