Kern Sibbald wrote:
On Monday 12 March 2007 04:05, Troy Daniels wrote:
Greetings Listers,
Last week I upgraded my Bacula install to 2.0.2 without any issues during
the upgrade process.
All seemed to be working well until Friday, but that was only because I
hadn't discovered this issue yet.
I run several jobs each night, with Full backups on Friday night and
incrementals every other night. Once the backups are completed I have
bacula setup to verify a few of these tape jobs against the catalog with
Volume to Catalog jobs.
These verify jobs have a higher priority, so they shouldn't start until
after the backup jobs are complete. I also schedule them to start 10
minutes after the backups at 23:15. (All backups are scheduled to start at
23:05)
This behaviour seems to have changed in Bacula 2.0.2 however. They seem to
launch immediately and select which tape they'll use for the verify.
Here's a log excerpt from a job running under 1.38.5 (My old version)
02-Mar 01:09 backup1-dir: Verifying against JobId=6017
Job=fs1.2007-03-01_23.00.00 02-Mar 01:09 backup1-dir: Bootstrap records
written to
/export/bacula/var/backup1-dir.restore.Verify-fs1.2007-03-01_23.15.00.bsr
02-Mar 01:09 backup1-dir:
02-Mar 01:09 backup1-dir: The job will require the following Volumes:
02-Mar 01:09 backup1-dir:
02-Mar 01:09 backup1-dir: 000009
02-Mar 01:09 backup1-dir:
Even tho it was scheduled to run at 23:15, it didn't start until 1:09 the
next morning. This is the expected behaviour.
Here's a log excerpt from Friday night under 2.0.2:
09-Mar 23:15 backup1-dir: Verifying against JobId=6101
Job=fs1.2007-03-08_23.00.00 09-Mar 23:15 backup1-dir: Bootstrap records
written to /export/bacula/var/backup1-dir.restore.11.bsr 09-Mar 23:15
backup1-dir:
09-Mar 23:15 backup1-dir: The job will require the following
Volume(s) Storage(s) SD Device(s)
=========================================================================
== 09-Mar 23:15 backup1-dir:
09-Mar 23:15 backup1-dir: 000010 Tape
OfficeAutochanger 09-Mar 23:15 backup1-dir:
10-Mar 20:57 backup1-dir: Start Verify JobId=6125 Level=VolumeToCatalog
Job=Verify-fs1.2007-03-09_23.15.00
As can be seen, the job started at 23:15, selected tape '000010' and then
waited until the next night to run (Full backups take most of a day
)
Meanwhile, the full backup ran, writing to 2 other tapes.
The problem encountered by bacula is that tape 000010 had been removed from
the Autochanger on Friday morning and replaced with this weeks incremental
tape. So Bacula blocked, waiting for a tape, until I discovered and
cancelled this job this morning. Not ideal, but it did bring this issue to
light.
What I'd like to know is if this was a deliberately designed feature, or if
it classifies as a bug? If it's deliberate, is there anyway to control when
it performs it's tape selection, or even which job it verify? I've scanned
the Jobs section of the latest manual but didn't see anything obvious.
For now I can either work around it(With a Run script running the verify
job), or even work with it (I've wanted to run the Full Backup job verifies
on Sunday for a while anyways.)
To the best of my knowledge there is no deliberate change in the way Verify
jobs are run.
You haven't supplied sufficient information, so I am not able to understand
the problem.
Doh, and I thought I'd described the problem well. Take 2.
Not sure what else to say about it. Maybe if I summarise it a bit more (My
previous attempt was a bit verbose)
When a verify job is scheduled under 2.0.2 to perform a Volume to Catalog
verify it now selects the job to be verified (and the associated tape(s)) at
the scheduled start time. It then waits until all jobs of lower priority finish
before performing the actual verify. This results in it verifying the previous
nights backup instead of the current nights one.
Under 1.38.5 the job wouldn't select the job to verify until it actually ran
(Actual start time instead of scheduled start time). In my case this is after
the job I actually want to verify has finished running for the evening.
This is the core of the problem I wanted to highlight, and you can see in the
above quoted email log excerpts showing the different times the job/tape
selection was performed.
Maybe an example will help too.
At 23:05 every night, backups of my servers are scheduled to commence. All
servers are backed up concurrently.
At 23:15 every night, VolumeToCatalog verify jobs of certain backup jobs are
scheduled to commence. These jobs have a higher priority than the backups so
they will wait until they are finished.
Under 1.38.5, the job to be verified wouldn't be selected until the verify job
ran. This meant it picked the job that had run that night at 23:05.
Under 2.0.2 the job to be verified is chosen at 23:15. The job I want to be
verified is still running, so isn't chosen. Instead the previous nights job is
selected. The verify job then waits until all other jobs are finished before
running the verify.
Hope this is enough information, if not please advise what you need so I can
supply it.
Cheers,
Troy Daniels
iTouch Australia
Regards,
Kern
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