Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Linux intel1 3.5.0-23-generic #35~precise1-Ubuntu SMP >________________________________ > From: Luca Fornasari <luca.fornasari at gmail.com> >To: DRBD <drbd-user at lists.linbit.com> >Sent: Friday, May 3, 2013 1:01 PM >Subject: Re: [DRBD-user] Enabling two primaries break connection > > > >Hi Louis, > > >What kernel are yuo running? > > >Cheers, >Luca > > > >On Fri, May 3, 2013 at 1:41 PM, Louis <mailtolouis2020-forum at yahoo.com> wrote: > >Hi Thomas, >> >> >>I just tested your scenario on DRBD 8.4.3. It seems fine, connection did not break. >>While doing the DD, I did change primary / secondary on bob node few times, but the connection never break. >> >> >>The only thing I couldn't run this drbdadm --allow-two-primaries=yes <resource>, it give uknown command. But I do have allow-two-primaries setup in my drbd.conf, not sure that make any different? >> >> >>Regards >>Louis >> >> >>>________________________________ >>> From: Thomas Thrainer <thomasth at google.com> >>>To: Luca Fornasari <luca.fornasari at gmail.com> >>>Cc: drbd-user at lists.linbit.com >>>Sent: Friday, May 3, 2013 10:00 AM >>>Subject: Re: [DRBD-user] Enabling two primaries break connection >>> >>> >>> >>>Hi, >>> >>> >>>Given the fact that I could reproduce the bug regularly, I'm pretty sure that this is indeed a DRBD bug. Unfortunately I didn't find a bugtracker on the DRBD site. Is there one? If not, what's the official way to report bugs? >>> >>> >>>For the record, here are the steps to reproduce: >>> * create a device with primary on alice and secondary on bob >>> * on alice: while true; do dd if=/dev/zero of=/dev/drbd0; done >>> * on bob: drbdadm --allow-two-primaries=yes <resource>; drbdadm primary <resource> >>> * you might have to drbdadm secondary <resource> on bob and then repeat the previous step in order to produce the bug >>> >>> >>>Log files are as mentioned in the first mail of the thread. >>> >>> >>>Cheers, >>>Thomas >>> >>> >>> >>> >>> >>>On Tue, Apr 30, 2013 at 2:25 PM, Thomas Thrainer <thomasth at google.com> wrote: >>> >>>Hi Luca, >>>> >>>> >>>>I just reproduced the exact same problem using only drbdadm. I also inspected the output of the -d option, and drbdadm does the exact same thing as Ganeti in this regard. >>>> >>>> >>>>Thanks, >>>>Thomas >>>> >>>> >>>> >>>>On Tue, Apr 30, 2013 at 2:18 PM, Thomas Thrainer <thomasth at google.com> wrote: >>>> >>>>Hi Luca, >>>>> >>>>> >>>>>I'll try the drbdadm method this as soon as I get to it. Right now I have no machines around which are already configured via drbdadm. >>>>> >>>>> >>>>>Note that I have included both logs (secondary and primary) in my first email. >>>>> >>>>> >>>>>I use DRBD 8.4.2 because 8.4.3 didn't compile against my kernel (3.2.27) and I didn't want to put much work into it. I this bug is known and fixed in 8.4.3, I'll might look into compiling against 3.2.27 again. >>>>> >>>>> >>>>>Cheers, >>>>>Thomas >>>>> >>>>>-- >>>>> >>>>>Thomas Thrainer | Software Engineer | thomasth at google.com | >>>>> >>>>> >>>>> >>>>>Google Germany GmbH >>>>>Dienerstr. 12 >>>>>80331 München >>>>> >>>>>Registergericht und -nummer: Hamburg, HRB 86891 >>>>>Sitz der Gesellschaft: Hamburg >>>>>Geschäftsführer: Graham Law, Katherine Stephens >>>> >>>> >>>> >>>>-- >>>> >>>>Thomas Thrainer | Software Engineer | thomasth at google.com | >>>> >>>> >>>> >>>>Google Germany GmbH >>>>Dienerstr. 12 >>>>80331 München >>>> >>>>Registergericht und -nummer: Hamburg, HRB 86891 >>>>Sitz der Gesellschaft: Hamburg >>>>Geschäftsführer: Graham Law, Katherine Stephens >>> >>> >>> >>>-- >>> >>>Thomas Thrainer | Software Engineer | thomasth at google.com | >>> >>> >>> >>>Google Germany GmbH >>>Dienerstr. 12 >>>80331 München >>> >>>Registergericht und -nummer: Hamburg, HRB 86891 >>>Sitz der Gesellschaft: Hamburg >>>Geschäftsführer: Graham Law, Katherine Stephens >>> >>>_______________________________________________ >>>drbd-user mailing list >>>drbd-user at lists.linbit.com >>>http://lists.linbit.com/mailman/listinfo/drbd-user >>> >>> >>> >>_______________________________________________ >>drbd-user mailing list >>drbd-user at lists.linbit.com >>http://lists.linbit.com/mailman/listinfo/drbd-user >> >> > >_______________________________________________ >drbd-user mailing list >drbd-user at lists.linbit.com >http://lists.linbit.com/mailman/listinfo/drbd-user > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20130503/268588c6/attachment.htm>