[Linux-cluster] GFS2 filesystem consistency error

[Daniel Dehennin]

Steven Whitehouse <swhiteho at redhat.com> writes:

> That looks like it is trying to free a block that is already marked as
> being free. fsck should fix that. What version of gfs2-utils are you
> using?

Hello,

We are using 3.1.6-0ubuntu1.

Running an fsck is quite expensive for us, 4 hours with the shared FS
unusable.

I forgot to say that it stores qcow2 images, so there should not be
concurrency on the file system except on some directories to
create/access sub directories:

    <GFS2 mount point>/<DIRECTORY OF RUNNING VMs>/<VM ID>/<QCOW2 images>

Only the <DIRECTORY OF RUNNING VMs> should have concurrent write
accesses, everything under <VM ID> is accessed only by one node at a
time, except for monitoring which is read only.

So “looks like it is trying to free a block that is already marked as
being free” looks strange.

Regards.
-- 
Daniel Dehennin
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