[lustre-discuss] One MGS for two different MDT - Can't mount the second fs

[Camilo Núnez Fernández]

Thanks Andreas ! All is work perfectly now.


Cheers,

On Tue, Sep 18, 2018 at 5:28 AM Andreas Dilger <adilger at whamcloud.com>
wrote:

> On Sep 17, 2018, at 20:40, Camilo Núnez Fernández <
> camilo.nunezf at sansano.usm.cl> wrote:
> >
> > Dear All,
> >
> > I am trying to make two different file system, in an simple environment,
> with two MDS (in failover) and two OSS (in failover). But i get an error
> when i try to mount the second filesystem.
> >
> > My first step was created the mgs in my first MDS node:
> >
> > [root at CASSACA-MDS-01 ~] mkfs.lustre --reformat --mgs  \
> > --servicenode=10.10.0.19 at o2ib \
> > --servicenode=10.10.0.20 at o2ib \
> >  /dev/vg_mgs/lv_mgs
> >
> > Then, I created the two different MDT (all in the same node):
> >
> > [root at CASSACA-MDS-01 ~] mkfs.lustre --reformat --mdt\
> >  --fsname=chivoacc \
> >  --index=0 \
> >  --mgsnode=10.10.0.19 at o2ib \
> >  --mgsnode=10.10.0.20 at o2ib  \
> >  --failnode=10.10.0.20 at o2ib \
> > /dev/vg_mdtmgt_01/lv_mdtmgt_01
> >
> > Finally I mounted the the mgs and the two mdt without any problem.
> >
> > [root at CASSACA-MDS-01 ~] mkfs.lustre --reformat --mdt\
> >  --fsname=chivodp \
> >  --index=1 \
> >  --mgsnode=10.10.0.19 at o2ib \
> >  --mgsnode=10.10.0.20 at o2ib  \
> >  --failnode=10.10.0.20 at o2ib \
> >  /dev/vg_mdtmgt_02/lv_mdtmgt_02
>
> This second filesystem's MDT is using index=1 when it should be using
> index=0. Each different filesystem needs to have MDT0000 present for the
> root inode, even if they are on the same MDS. See the error below.
>
> > I get this from the kernel log:
> >
> > [1382151.599809] Lustre: Mounted chivoacc-client
> > [1382192.901603] Lustre: Unmounted chivoacc-client
> > [1382201.442196] LustreError: 2324:0:(lmv_obd.c:525:lmv_check_connect())
> chivodp-clilmv-ffff97659ab28000: no target configured for index 0.
> > [1382201.442646] LustreError:
> 2324:0:(llite_lib.c:276:client_common_fill_super()) cannot connect to
> chivodp-clilmv-ffff97659ab28000: rc = -22
> > [1382201.443206] LustreError: 2324:0:(lov_obd.c:878:lov_cleanup())
> chivodp-clilov-ffff97659ab28000: lov tgt 0 not cleaned! deathrow=0, lovrc=1
> > [1382201.443633] LustreError: 2324:0:(lov_obd.c:878:lov_cleanup())
> Skipped 5 previous similar messages
> > [1382201.448571] LustreError:
> 2324:0:(obd_mount.c:1582:lustre_fill_super()) Unable to mount  (-22)
> > [1382206.435767] LustreError: 2349:0:(lmv_obd.c:525:lmv_check_connect())
> chivodp-clilmv-ffff976594d8a800: no target configured for index 0.
>
> ^^^^^ This is the main problem during the mount.
>
> > [1382206.436180] LustreError:
> 2349:0:(llite_lib.c:276:client_common_fill_super()) cannot connect to
> chivodp-clilmv-ffff976594d8a800: rc = -22
> > [1382206.436740] LustreError: 2349:0:(lov_obd.c:878:lov_cleanup())
> chivodp-clilov-ffff976594d8a800: lov tgt 0 not cleaned! deathrow=0, lovrc=1
> > [1382206.437150] LustreError: 2349:0:(lov_obd.c:878:lov_cleanup())
> Skipped 5 previous similar messages
> > [1382206.442102] LustreError:
> 2349:0:(obd_mount.c:1582:lustre_fill_super()) Unable to mount  (-22)
> > [1459793.596446] LustreError: 514:0:(lmv_obd.c:525:lmv_check_connect())
> chivodp-clilmv-ffff976592149000: no target configured for index 0.
> > [1459793.596868] LustreError:
> 514:0:(llite_lib.c:276:client_common_fill_super()) cannot connect to
> chivodp-clilmv-ffff976592149000: rc = -22
> > [1459793.597428] LustreError: 514:0:(lov_obd.c:878:lov_cleanup())
> chivodp-clilov-ffff976592149000: lov tgt 0 not cleaned! deathrow=0, lovrc=1
> > [1459793.597823] LustreError: 514:0:(lov_obd.c:878:lov_cleanup())
> Skipped 5 previous similar messages
> > [1459793.601939] Lustre: Unmounted chivodp-client
> > [1459793.601944] Lustre: Skipped 2 previous similar messages
> > [1459793.603495] LustreError:
> 514:0:(obd_mount.c:1582:lustre_fill_super()) Unable to mount  (-22)
> > [1459901.084661] Lustre: Mounted chivoacc-client
> > [1459913.603465] Lustre: Unmounted chivoacc-client
> > [1460294.892333] LustreError: 996:0:(lmv_obd.c:525:lmv_check_connect())
> chivodp-clilmv-ffff976594d8a800: no target configured for index 0.
> > [1460294.892748] LustreError:
> 996:0:(llite_lib.c:276:client_common_fill_super()) cannot connect to
> chivodp-clilmv-ffff976594d8a800: rc = -22
> > [1460294.893319] LustreError: 996:0:(lov_obd.c:878:lov_cleanup())
> chivodp-clilov-ffff976594d8a800: lov tgt 0 not cleaned! deathrow=0, lovrc=1
> > [1460294.893728] LustreError: 996:0:(lov_obd.c:878:lov_cleanup())
> Skipped 5 previous similar messages
> > [1460294.897711] Lustre: Unmounted chivodp-client
> > [1460294.898708] LustreError:
> 996:0:(obd_mount.c:1582:lustre_fill_super()) Unable to mount  (-22)
> >
> > I don't know why i have this error. Any suggestion can help me.
> >
> > Cheers !
> > --
> > Camilo Esteban Cañas Fernández
> > Ayudante de Investigación
> > Chilean Virtual Observatory
> > Ayudante Coordinador CSJ, IWI-131
> > Universidad Técnica Federico Santa María
> > camilo.nunezf at sansano.usm.cl
> >
> >
> > _______________________________________________
> > lustre-discuss mailing list
> > lustre-discuss at lists.lustre.org
> > http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
>
> Cheers, Andreas
> ---
> Andreas Dilger
> CTO Whamcloud
>
>
>
>
>

-- 
*Camilo Esteban Cañas Fernández*
Ayudante de Investigación
Chilean Virtual Observatory
Ayudante Coordinador CSJ, IWI-131
Universidad Técnica Federico Santa María
camilo.nunezf at sansano.usm.cl
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