Thanks for the info. It makes more sense to be an OST object - I was looking at
wrong source where ’trusted.lma’ is extended for OST objects, which misled me
to think this must be a MDT object.
It seems like the objects on the MDT were deleted by ‘rm’ but somehow the
objects on the OST side
Hi Andreas,
The one "broken object" that we removed as a test, did live in O/0/d*. This was
the only file we removed while having a clone mounted as "native" ZFS (changing
ZFS property "canmount=yes"). We had took a snapshot followed by ZFS
send/receive to another zpool to accomplish this
Note that the "broken objects" may be Lustre internal metadata, such as the
Object Index files, so deleting them may be bad for your filesystem without
knowing what they are.
Not that I can say for sure your bug is fixed, but ZFS 0.6.4 is getting a bit
long in the tooth (tagged April 8, 2015),
Hi Jinshan,
The examples in the first part of the thread are from one of our OST's. We had
all previous files/dirs pinned" to the OST via setstripe; so there was a
specific top level directory associated with this specific OST. After the
recursive rm, we noticed the ZFS OST, still showed space
Hi Tom,
Just to narrow down the problem, when you saw the space was not freed from
zpool, were you seeing this from MDT or OST zpool?
It seems that the objects you dumped were from MDT pool. The object 138 should
belong to a Lustre file, and it has a spilled block attached.
Jinshan
On Sep 9,
Hello,
After looking at the LFSCK source code - specifically
lustre/lfsck/lfsck_namespace.c - I was led to believe that suppressing
the "lfsck_namespace" file in the MDT LDISKFS should be safe enough (NB:
I had a backup of the MDT on a disconnected DRBD peer for the worst case
scenario):
#
Hello,
On 14/09/16 20:58, Bernd Schubert wrote:
> Hi Cédric,
>
> I'm by no means familiar with Lustre code anymore, but based on the stack
> trace and function names, it seems to be a problem with the journal. Maybe
> try
> to do an 'efsck -f' which would replay the journal and possibly clean
