>>>>> On Wed, 15 Feb 2012 17:46:33 +0000, Joe Nyland said: > > On 15 Feb 2012, at 16:52, Martin Simmons wrote: > > >>>>>> On Wed, 15 Feb 2012 13:31:10 +0000 (GMT), Joe Nyland said: > >> > >> On 14 Feb, 2012,at 03:47 PM, Martin Simmons <mar...@lispworks.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 > >>> > >>> ------------------------------------------------------------------------------ > >>> Keep Your Developer Skills Current with LearnDevNow! > >>> The most comprehensive online learning library for Microsoft developers > >>> is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, > >>> Metro Style Apps, more. Free future releases when you subscribe now! > >>> http://p.sf.net/sfu/learndevnow-d2d > >>> _______________________________________________ > >>> Bacula-users mailing list > >>> Bacula-users@lists.sourceforge.net > >>> https://lists.sourceforge.net/lists/listinfo/bacula-users > >>> > >> > >> > >> 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 > > > > ------------------------------------------------------------------------------ > > Virtualization & Cloud Management Using Capacity Planning > > Cloud computing makes use of virtualization - but cloud computing > > also focuses on allowing computing to be delivered as a service. > > http://www.accelacomm.com/jaw/sfnl/114/51521223/ > > _______________________________________________ > > Bacula-users mailing list > > Bacula-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/bacula-users > > Ok, that sounds reasonable. > > One question, does bacula-sd need to be running with "-s no > signals (for debugging)" or will gdb be able to provide enough info without > this option? (My default options on Ubuntu 10.04 are: -c <config file> -u > <user> -g <group>) > > Would using the -s option introduce the sort of delay we mentioned earlier, > and thus limit my changes of reproducing the issue?
I don't think -s will have any effect on delays, but you shouldn't need it if you attach gdb to the hanging process. __Martin ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
