[Linux-cluster] gfs2 mount: No space left on device

[Steven Whitehouse]

Hi,

On Thu, 2012-08-23 at 22:35 +0200, Bart Verwilst wrote:
> Umounting and remounting made the filesystem writeable again.
> 
> I've then ran a gfs2_fsck on the device, which gave me
> 

The output from fsck doesn't really give any clues as to the cause.

The reclaiming of unlinked inodes is a fairly normal thing to see,
particularly if there has been some kind of crash just before running
fsck and it is nothing to worry about.

The real issue is why you got this out of space error in the first
place, when there appears to be plenty of free blocks left. It would be
worth checking with gfs2_edit just to be sure that the allocation
bitmaps are not full, even if the summary information says otherwise.

Can you easily reproduce this issue, or is this something that has just
occurred once?

Steve.


> root at vm01-test:~# gfs2_fsck /dev/mapper/iscsi_cluster_qemu
> Initializing fsck
> Validating Resource Group index.
> Level 1 rgrp check: Checking if all rgrp and rindex values are good.
> (level 1 passed)
> Okay to reclaim unlinked inodes in resource group 131090 (0x20012)? 
> (y/n)y
> Error: resource group 131090 (0x20012): free space (65527) does not 
> match bitmap (65528)
> (1 blocks were reclaimed)
> Fix the rgrp free blocks count? (y/n)y
> The rgrp was fixed.
> RGs: Consistent: 7   Inconsistent: 1   Fixed: 1   Total: 8
> Starting pass1
> Pass1 complete
> Starting pass1b
> Pass1b complete
> Starting pass1c
> Pass1c complete
> Starting pass2
> Pass2 complete
> Starting pass3
> Pass3 complete
> Starting pass4
> Pass4 complete
> Starting pass5
> RG #131090 (0x20012) Inode count inconsistent: is 1 should be 0
> Update resource group counts? (y/n) y
> Resource group counts updated
> Pass5 complete
> The statfs file is wrong:
> 
> Current statfs values:
> blocks:  524228 (0x7ffc4)
> free:    424937 (0x67be9)
> dinodes: 24 (0x18)
> 
> Calculated statfs values:
> blocks:  524228 (0x7ffc4)
> free:    424938 (0x67bea)
> dinodes: 23 (0x17)
> Okay to fix the master statfs file? (y/n)y
> The statfs file was fixed.
> Writing changes to disk
> gfs2_fsck complete
> 
> 
> root at vm01-test:~# gfs2_fsck /dev/mapper/iscsi_cluster_qemu
> Initializing fsck
> Validating Resource Group index.
> Level 1 rgrp check: Checking if all rgrp and rindex values are good.
> (level 1 passed)
> Okay to reclaim unlinked inodes in resource group 131090 (0x20012)? 
> (y/n)y
> Error: resource group 131090 (0x20012): free space (65527) does not 
> match bitmap (65528)
> (1 blocks were reclaimed)
> Fix the rgrp free blocks count? (y/n)y
> The rgrp was fixed.
> RGs: Consistent: 7   Inconsistent: 1   Fixed: 1   Total: 8
> Starting pass1
> Pass1 complete
> Starting pass1b
> Pass1b complete
> Starting pass1c
> Pass1c complete
> Starting pass2
> Pass2 complete
> Starting pass3
> Pass3 complete
> Starting pass4
> Pass4 complete
> Starting pass5
> RG #131090 (0x20012) Inode count inconsistent: is 1 should be 0
> Update resource group counts? (y/n) y
> Resource group counts updated
> Pass5 complete
> The statfs file is wrong:
> 
> Current statfs values:
> blocks:  524228 (0x7ffc4)
> free:    424937 (0x67be9)
> dinodes: 24 (0x18)
> 
> Calculated statfs values:
> blocks:  524228 (0x7ffc4)
> free:    424938 (0x67bea)
> dinodes: 23 (0x17)
> Okay to fix the master statfs file? (y/n)y
> The statfs file was fixed.
> Writing changes to disk
> gfs2_fsck complete
> 
> Could it be that it looks like bug 
> https://bugzilla.redhat.com/show_bug.cgi?id=666080 ?
> 
> Bart
> 
> Bart Verwilst schreef op 23.08.2012 22:16:
> > Hello,
> >
> > One problem fixed, up to the next one :) While everything seemed to
> > work fine for a while, now I'm seeing this:
> >
> > root at vm02-test:~# df -h | grep libvirt
> > /dev/mapper/iscsi_cluster_qemu     2.0G  388M  1.7G  19% 
> > /etc/libvirt/qemu
> > /dev/mapper/iscsi_cluster_sanlock  5.0G  393M  4.7G   8%
> > /var/lib/libvirt/sanlock
> >
> > root at vm02-test:~# ls -al /etc/libvirt/qemu
> > total 16
> > drwxr-xr-x 2 root root 3864 Aug 23 13:54 .
> > drwxr-xr-x 6 root root 4096 Aug 14 15:09 ..
> > -rw------- 1 root root 2566 Aug 23 13:51 firewall.xml
> > -rw------- 1 root root 2390 Aug 23 13:54 zabbix.xml
> >
> > root at vm02-test:~# gfs2_tool journals /etc/libvirt/qemu
> > journal2 - 128MB
> > journal1 - 128MB
> > journal0 - 128MB
> > 3 journal(s) found.
> >
> >
> > root at vm02-test:~# touch /etc/libvirt/qemu/test
> > touch: cannot touch `/etc/libvirt/qemu/test': No space left on device
> >
> >
> >
> > Anything I can do to debug this further?
> >
> > Kind regards,
> >
> > Bart Verwilst
> 
> --
> Linux-cluster mailing list
> Linux-cluster at redhat.com
> https://www.redhat.com/mailman/listinfo/linux-cluster