Ashish Varman wrote:
Hello all
I am using a gfs filesystem on FC6 with a two node cluster. Since I
needed gfs_grow, I checked out "cluster" from sources.redhat.com with
the tag "RHEL50". I first tested gfs functionality without cluster (
-p lock_nolock ). I then made a two node cluster and formatted the
volume again with (-p lock_dlm). On one node, the filesystem can be
mounted but on the other it fails. gfs_fsck runs and gives no errors.
The errors from the mount command and in /var/log/messages are as follows
[root@clnode31 ~]# mount /dev/mapper/ExVolGroup-ExLogVol /mnt/tmp/ -t gfs
mount: wrong fs type, bad option, bad superblock on
/dev/mapper/ExVolGroup-ExLogVol,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
[root@clnode31 ~]# tail /var/log/messages
Jan 20 18:45:45 clnode31 kernel: Trying to join cluster "lock_dlm",
"alpha:third"
Jan 20 18:45:45 clnode31 kernel: dlm: third: recover 1
Jan 20 18:45:45 clnode31 kernel: dlm: third: add member 1
Jan 20 18:45:45 clnode31 kernel: dlm: third: total members 1 error 0
Jan 20 18:45:45 clnode31 kernel: dlm: third: dlm_recover_directory
Jan 20 18:45:45 clnode31 kernel: dlm: third: dlm_recover_directory 0
entries
Jan 20 18:45:45 clnode31 kernel: dlm: third: recover 1 done: 0 ms
Jan 20 18:45:45 clnode31 kernel: Joined cluster. Now mounting FS...
Jan 20 18:45:45 clnode31 kernel: GFS: fsid=alpha:third.4294967295:
can't mount journal #4294967295
Jan 20 18:45:45 clnode31 kernel: GFS: fsid=alpha:third.4294967295:
there are only 8 journals (0 - 7)
What am I doing wrong ????
Thanks in advance.
Yours Sincerely
Ashish Varman
Hi Ashish,
Hard to say offhand what is going on here. I recommend checking the
following
(off the top of my head; no particular order).
1. Make sure both nodes have /sbin/mount.gfs and /sbin/mount.gfs2
It's okay to have /sbin/mount.gfs be a symlink to /sbin/mount.gfs2
2. Make sure both nodes are running the same version of the cluster software
and GFS (i.e. via rpm -q).
3. Make sure the clustered bit is "on" for your vg. Use vgs. (Assuming,
of course, that you're using lvm). The vgs command should show
something like "wz--nc", and the "c" at the end means it's clustered.
4. Make sure your /etc/cluster/cluster.conf file is the same on both nodes.
5. Make sure your gfs file system was made (gfs_mkfs) with that cluster
name.
Use you can check this with gfs_tool sb /dev/your_vg/your_lv table
6. If everything so far checks out, do the command "group_tool -v" to make
sure both nodes are properly joined to the appropriate fence group and
dlm group.
7. If everything looks good in #6, do the command "group_tool dump gfs"
to see if there are any weird messages from the gfs_controld daemon
regarding the mount that failed.
Regards,
Bob Peterson
Red Hat Cluster Suite
--
Linux-cluster mailing list
Linux-cluster@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/linux-cluster
