>>>>> On Wed, 15 Feb 2012 13:31:10 +0000 (GMT), Joe Nyland said:
>
> On 14 Feb, 2012,at 03:47 PM, Martin Simmons <martin AT lispworks DOT com>
> wrote:
>
> > >>>>> On Tue, 14 Feb 2012 10:34:31 -0500, John Drescher said:
> > >
> > > > I've been running the SD using the following command (I know the
> > > > combination
> > > > of options I have used may be excessive, but I wanted as much chance of
> > > > catching the error as I could!) since yesterday afternoon:
> > > > sudo bacula-sd -c /etc/bacula/bacula-sd.conf -d 100 -dt -f -u bacula
> > > > -g
> > > > tape -m -v | tee -a /mnt/array/bacula-sd.screen.log
> > > >
> > > > However, (as luck would have it) I've not seen the behaviour I
> > > > originally
> > > > reported whilst running with debug options.
> > > >
> > > > Is there any way in which running the SD with the combination of
> > > > options I
> > > > have used above, could cause any different behaviour of the SD? Or
> > > > interfere
> > > > in any way with it? I'm asking, becuase I have re-enabled all of the
> > > > backups
> > > > jobs I have on the server, and I have still not seen it crash again.
> > > >
> > >
> > > Could be a timing issue that the delay in writing the log causes the
> > > bad behavior to not happen.. Those types of problems are hard to
> > > debug.
> >
> > Running it under gdb without the debug options is better approach in that
> > case.
> >
> > http://www.bacula.org/5.2.x-manuals/en/problems/problems/What_Do_When_Bacula.html#SECTION00640000000000000000
> >
> > When it 'crashes' (though it sounds more like 'hangs' is a better word),
> > interrupt gdb with Ctrl-c to get back to the gdb shell window (as in step
> > 8).
> >
> > __Martin
> >
> > ------------------------------------------------------------------------------
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>
>
> Martin and John, thank you for your replies.
>
> I since yesterday afternoon, bacula-sd has been running under gdb using the
> instructions in the manual for my Bacula version, however I've still not seen
> the issue originally reported.
>
> I agree with you both that by running it under a debugging process, it seems
> a delay is introduced which is suppressing the error in some way. Is my best
> bet just to leave bacula-sd running under gdb and hope that my full backups
> over the weekend may highlight the issue? Or is there another way I could
> debug this?
Assuming the error causes the SD to hang (rather than exit), then you could
run it without gdb and then attach gdb to it when it hangs (use gdb -p $pid).
__Martin
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