Re: Ceph 18: Unable to delete image after imcomplete migration "image being migrated"

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi,

then I misinterpreted your message and thought you were actually surprised about the trash image. Yeah I don't think messing with hexedit really helped here, but I'm not sure either. Anyway, let us know how it went.

Zitat von Rhys Goodwin <rhys.goodwin@xxxxxxxxx>:

Thanks again Eugen. Looking at my command history it does look like I did execute the migration but didn't commit it. I wasn't surprised to see it in the trash based on the doc you mentioned, I only tried the restore as a desperate measure to clean up my mess. It doesn't help that I messed around like this, including with hexedit :O. I should have reached out before messing around.

I'll proceed with the migrate/re-create and report back. I'm just crossing my fingers that I'll be allowed to delete the pool. It's a lesson to me to take more care of my wee cluster.

Cheers,
Rhys

------- Original Message -------
On Wednesday, October 11th, 2023 at 7:54 AM, Eugen Block <eblock@xxxxxx> wrote:


Hi,

I just re-read the docs on rbd migration [1], haven't done that in a
while, and it states the following:

> Note that the source image will be moved to the RBD trash to avoid
> mistaken usage during the migration process


So it was expected that your source image was in the trash during the
migration, no need to restore. According to your history you also ran
the "execute" command, do you remember if ran successfully as well?
Did you "execute" after the prepare command completed? But you also
state that the target image isn't there anymore, so it's hard to tell
what exactly happened here. I'm not sure how to continue from here,
maybe migrating/re-creating is the only way now.

[1] https://docs.ceph.com/en/quincy/rbd/rbd-live-migration/

Zitat von Rhys Goodwin rhys.goodwin@xxxxxxxxx:

> Thanks Eugen.
>
> root@hcn03:~# rbd status infra-pool/sophosbuild
> 2023-10-10T09:44:21.234+0000 7f1675c524c0 -1 librbd::Migration:
> open_images: failed to open destination image images/65d188c5f5a34:
> (2) No such file or directory
> rbd: getting migration status failed: (2) No such file or directory
> Watchers: none
>
> I've checked over the other pools again, but they only contain
> Openstack images. There are only 42 images in total across all
> pools. In fact, the "infra-pool" pool only has 3 images, including
> the faulty one. So migrating/re-creating is not a big deal. It's
> more just that I'd like to learn more about how to resolve such
> issues, if possible.
>
> Good call on the history. I found this smoking gun with: 'history
> |grep "rbd migration":
> rbd migration prepare infra-pool/sophosbuild images/sophosbuild
> rbd migration execute images/sophosbuild
>
> But images/sophosbuild is definitely not there anymore, and not in
> the trash. It looks like I was missing the commit.
>
> Kind regards,
> Rhys
>
> ------- Original Message -------
>
> Eugen Block Wrote:
>
> Hi, there are a couple of things I would check before migrating all
> images. What's the current 'rbd status infra-pool/sophosbuild'? You
> probably don't have an infinite number of pools so I would also
> check if any of the other pools contains an image with the same
> name, just in case you wanted to keep its original name and only
> change the pool. Even if you don't have the terminal output, maybe
> you find some of the commands in the history?
> _______________________________________________
> ceph-users mailing list -- ceph-users@xxxxxxx
> To unsubscribe send an email to ceph-users-leave@xxxxxxx



_______________________________________________
ceph-users mailing list -- ceph-users@xxxxxxx
To unsubscribe send an email to ceph-users-leave@xxxxxxx
_______________________________________________
ceph-users mailing list -- ceph-users@xxxxxxx
To unsubscribe send an email to ceph-users-leave@xxxxxxx


_______________________________________________
ceph-users mailing list -- ceph-users@xxxxxxx
To unsubscribe send an email to ceph-users-leave@xxxxxxx



[Index of Archives]     [Information on CEPH]     [Linux Filesystem Development]     [Ceph Development]     [Ceph Large]     [Ceph Dev]     [Linux USB Development]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [xfs]


  Powered by Linux