[lustre-discuss] lfs migrate status

[Alex Zarochentsev]

Hello,

On Mon, Jun 17, 2024 at 4:04 PM Michael DiDomenico via lustre-discuss <
lustre-discuss at lists.lustre.org> wrote:

> i am attempting to use lfs migrate to move some directories from one
> mdt to another.  the lfs migrate part seemed to be okay as i didn't
> get any errors, but there are directories still in "migrating" state
>
> lfs getdirstripe .
> lmv_stripe_count: 2 lmv_stripe_offset: 1 lmv_hash_type: non,migrating
> mdtidx
> 1
> 0
>

i.e. lfs migrate completed but some dirs are in "none, migrating" state? I
think the migration process failed.
I believe https://jira.whamcloud.com/browse/LU-17635 is going to fix that.

Can you please share info about Lustre versions on client and mds servers
and was it just a single thread
'lfs migrate' ? Ideally I would like to know how to reproduce such a
situation.


> if i do a `mkdir tmp` in the directory currently i get "bad file
> descriptor".  i figured this process would clean up over the weekend,
> but it doesn't seem to have finished up


setting the "BAD_HASH" flag by LFSCK would allow some operations over those
dirs,
resuming  the migration process or removal of the directories.

Thanks,
Zam.


>
> is there a way to see what lustre is doing? or estimate how long it'll
> take to finish whatever it's doing?  or how to cancel the migrations
> still outstanding?
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