Hi Nigel,
For your issue I created a dedicated tracker, please see
https://tracker.ceph.com/issues/65630.
I have found the root cause and I am still trying to find the proper way
to fix it. Please watch the tracker.
Thanks
- Xiubo
On 4/18/24 14:22, Nigel Williams wrote:
Hi Xiubo,
Is the issue we provided logs on the same as Erich or is that a third
different locking issue?
thanks,
nigel.
On Thu, 18 Apr 2024 at 12:29, Xiubo Li <xiubli@xxxxxxxxxx> wrote:
On 4/18/24 08:57, Erich Weiler wrote:
>> Have you already shared information about this issue? Please do
if not.
>
> I am working with Xiubo Li and providing debugging information - in
> progress!
>
From the blocked ops output it very similiar the same issue as
Patrick's lock order fixed before.
I am still waiting the complete debug logs from Erich.
And the lock order PR is under reviewing.
- Xiubo
>>> I was
>>> wondering if it would be included in 18.2.3 which I *think*
should be
>>> released soon? Is there any way of knowing if that is true?
>>
>> This PR is primarily a debugging tool. It will not make 18.2.3
as it's
>> not even merged to main yet.
>
> Ah, OK. I hope some solution can be had soon for this item if
Xiubo
> figures it out - it's requiring constant attention to keep my
> filesystem from hanging, or, the restart MDS daemons multiple
times a
> day to "unstick" the filesystem on random cluster nodes. We
think it's
> due to lock contention/deadlocking.
>
> Possibly it's not affecting others as much as me... We have an HPC
> cluster hammering the filesystem (18.2.1) and the MDS daemons
seems to
> be reporting lock issues pretty frequently while nodes and
processes
> fighting to get file and directory locks, and deadlocking (we
think).
>
> I'll keep working with Xiubo.
>
> -erich
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