Am Montag, 19. Oktober 2009 20:42:19 schrieben Sie: > On Monday 19 October 2009, Andreas Dilger wrote: > > On 19-Oct-09, at 08:46, Michael Schwartzkopff wrote: > > > perhaps I have a problem understanding multiple mount protection > > > MMP. I have a > > > cluster. When a failover happens sometimes I get the log entry: > > > > > > Oct 19 15:16:08 sososd7 kernel: LDISKFS-fs warning (device dm-2): > > > ldiskfs_multi_mount_protect: Device is already active on another node. > > > Oct 19 15:16:08 sososd7 kernel: LDISKFS-fs warning (device dm-2): > > > ldiskfs_multi_mount_protect: MMP failure info: last update time: > > > 1255958168, > > > last update node: sososd3, last update device: dm-2 > > > > > > Does the second line mean that my node (sososd7) tried to mount /dev/ > > > dm-2 but > > > MMP prevented it from doing so because the last update from the old > > > node > > > (sososd3) was too recent? > > > > The update time stored in the MMP block is purely for informational > > purposes. It actually uses a sequence counter that has nothing to do > > with the system clock on either of the nodes (since they may not be in > > sync). > > > > What that message actually means is that sososd7 tried to mount the > > filesystem on dm-2 (which likely has another "LVM" name that the kernel > > doesn't know anything about) but the MMP block on the disk was modified > > by sososd3 AFTER sososd7 first looked at it. > > Probably, bug#19566. Michael, which Lustre version do you exactly use? > > > Thanks, > Bernd
I got version 1.8.1.1 which was published last week. Is the fix included or only in 1.8.2? Greetings, -- Dr. Michael Schwartzkopff MultiNET Services GmbH Addresse: Bretonischer Ring 7; 85630 Grasbrunn; Germany Tel: +49 - 89 - 45 69 11 0 Fax: +49 - 89 - 45 69 11 21 mob: +49 - 174 - 343 28 75 mail: [email protected] web: www.multinet.de Sitz der Gesellschaft: 85630 Grasbrunn Registergericht: Amtsgericht München HRB 114375 Geschäftsführer: Günter Jurgeneit, Hubert Martens --- PGP Fingerprint: F919 3919 FF12 ED5A 2801 DEA6 AA77 57A4 EDD8 979B Skype: misch42 _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
