Hi,
07.07.2008 17:48, S.Lehmann8 AT DeutschePost DOT de wrote:
> Hi,
>
> I have some things witch could be possible bugs.
>
> First:
> Configured are one virual autochanger of type file and one physical
> autochanger of type tape. There is one pool for every changer.
> I use bweb, so i can see some informations at a glance, for example the
> in-changer flag.
>
> Sometimes i get an error when changing the volume in the virtual autochanger.
> At this time, the in-changer-flag from one physical medium (tape) ist unset.
> After a while, many medias have an unset in-changer flag.
>
> Here is the error message from the job, but i don't belive this is the
> originaly reason:
>
> 2008-07-07 15:14:59 dss-bacula-dir JobId 9485: Using Device "SL500-1-Drive-1"
> 2008-07-07 15:14:59 dss-bacula-sd JobId 9485: 3301 Issuing autochanger
> "loaded? drive 0" command.
> 2008-07-07 15:15:00 dss-bacula-sd JobId 9485: 3302 Autochanger "loaded? drive
> 0", result is Slot 17.
> 2008-07-07 15:15:00 dss-bacula-sd JobId 9485: 3307 Issuing autochanger
> "unload slot 17, drive 0" command.
> 2008-07-07 15:18:00 dss-bacula-sd JobId 9485: Warning: Volume "00115" is in
> use by device "FileStorage1" (/stage0/drive1)
> 2008-07-07 15:18:00 dss-bacula-sd JobId 9485: 3301 Issuing autochanger
> "loaded? drive 0" command.
> 2008-07-07 15:18:00 dss-bacula-sd JobId 9485: 3302 Autochanger "loaded? drive
> 0", result: nothing loaded.
> 2008-07-07 15:18:00 dss-bacula-sd JobId 9485: Warning: acquire.c:207 Read
> open device "FileStorage" (/stage0/drive0) Volume "00115" failed:
> ERR=dev.c:491 Could not open: /stage0/drive0, ERR=No such file or directory
>
> 2008-07-07 15:18:00 dss-bacula-sd JobId 9485: 3301 Issuing autochanger
> "loaded? drive 0" command.
> 2008-07-07 15:18:00 dss-bacula-sd JobId 9485: 3302 Autochanger "loaded? drive
> 0", result: nothing loaded.
> 2008-07-07 15:18:00 dss-bacula-sd JobId 9485: 3304 Issuing autochanger "load
> slot 15, drive 0" command.
> 2008-07-07 15:18:00 dss-bacula-sd JobId 9485: 3305 Autochanger "load slot 15,
> drive 0", status is OK.
> 2008-07-07 15:18:00 dss-bacula-sd JobId 9485: 3301 Issuing autochanger
> "loaded? drive 0" command.
> 2008-07-07 15:18:00 dss-bacula-sd JobId 9485: 3302 Autochanger "loaded? drive
> 0", result is Slot 15.
> 2008-07-07 15:18:01 dss-bacula-sd JobId 9485: Ready to read from volume
> "00115" on device "FileStorage" (/stage0/drive0).
> 2008-07-07 15:18:01 dss-bacula-sd JobId 9485: Forward spacing Volume "00115"
> to file:block 0:793368764.
>
>
> As you can see, loading the required volume is no problem. I think, the error
> message is NOT the problem of this behavior. I believe i have seen this
> in-changer-flag setting sometimes when a media is changed. The bug is, that
> the flag is set to the wrong media. It is set to an physical media from the
> physical changer, which is an other pool. But the physical Volume has the
> same slot-Number!
That would be a bug worth reporting.
>
> Second:
> Migration jobs migrate jobs twice. In our environment every three hours a
> migration job is beeing triggert. After that three hours it is possible, that
> not all migration jobs are finished, so some jobs have not the status "M" for
> migrated jobs. A new migration job is starting and those not completed jobs
> will be queued again. Thats ok, because at this momenten the flag "M" for
> migration is not beeing set to the job, as i wrote. Now the jobs from the
> first migration-job will be executed and the status will be set. When the
> second migration job for the same jobid is on the line, it is beeing migrated
> again, although the job-status for migration is set!
>
> Better would be to look at the beginning of a job which job-status is set.
Well, that's just the way Bacula works.
Others have stated they consider that a bug or a design deficiency.
Anyway, Kern is unlikely to change it as it would cahnge Bacula's
behavior for a given configuration.
Instead, a new feature for this will be implemented some day - if you
look for "Job proximity" or "Duplicate Jobs" in the archive of -devel,
you will find at least one of the threads discussing that.
Arno
>
> If you thing these tings are bugs i would report it with as many informations
> as i can provide.
>
>
>
> Mit freundlichem Grüßen
>
> Sebastian Lehmann
>
--
Arno Lehmann
IT-Service Lehmann
www.its-lehmann.de
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