On 20/11/2024 16:24, Aurelien Degremont wrote:
Hello Philippe,

I do not see why changing the changelog mask would cause I/O error, especially 
as this seems transient.
Did you happen to have any errors on your client hosts or MDS hosts as the time 
of your testing ? (see dmesg)


hello

no we did not see and we have reproduced the problem with 3 vm Rocky 8.10 with 
fresh 2.15.5  ( 1 mds , 1 oss , 1 client )




Aurélien
------------------------------------------------------------------------------------------------------------------------------------
*De :* lustre-discuss <[email protected]> de la part de 
Philippe Weill <[email protected]>
*Envoyé :* mercredi 20 novembre 2024 07:11
*À :* [email protected] <[email protected]>
*Objet :* [lustre-discuss] Report Strange Problem on 2.15.5 with changelog_mask
External email: Use caution opening links or attachments


Hello

after passing the following command on our lustre MDS

lctl set_param -P mdd.*-MDT0000.changelog_mask='MARK MTIME CTIME'

unmounting and remounting the mdt on mds

we had  error on touch chmod chgrp existing files

root@host:~# echo foobar > /scratch/root/foobar
root@host:~# cat /scratch/root/foobar
foobar
root@host:~# echo foobar2 >>  /scratch/root/foobar
root@host:~# cat /scratch/root/foobar
foobar
foobar2
root@host:~# touch /scratch/root/foobar
touch: setting times of '/scratch/root/foobar': Input/output error
root@host:~# chgrp group /scratch/root/foobar
chgrp: changing group of '/scratch/root/foobar': Input/output error
root@host:~# chmod 666 /scratch/root/foobar
chmod: changing permissions of '/scratch/root/foobar': Input/output error


doing the following command

lctl set_param -P mdd.*-MDT0000.changelog_mask='-MARK -MTIME -CTIME'


and only activating non permanently for our robinhood

lctl set_param  mdd.*-MDT0000.changelog_mask='MARK MTIME CTIME'


[root@mds ~]#  lctl get_param  mdd.scratch-MDT0000.changelog_mask
mdd.scratch-MDT0000.changelog_mask=MARK MTIME CTIME


everything started to work again

Bug or bad use from us ?
_______________________________________________
lustre-discuss mailing list
[email protected]
https://nam11.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.lustre.org%2Flistinfo.cgi%2Flustre-discuss-lustre.org&data=05%7C02%7Cadegremont%40nvidia.com%7C8f3380bfd4aa40cc551108dd092a6512%7C43083d15727340c1b7db39efd9ccc17a%7C0%7C0%7C638676799899907487%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=PohwsBW6RfjTfXhTHh0WvnnRoRA6bbpZ1LJmSTlfEks%3D&reserved=0
 <http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org>

--
Weill Philippe -  Administrateur Systeme et Reseaux
CNRS/UPMC/IPSL   LATMOS (UMR 8190)
Tour 45/46 3e Etage B302|4 Place Jussieu|75252 Paris Cedex 05 -  FRANCE
Email:[email protected] | tel:+33 0144274759
_______________________________________________
lustre-discuss mailing list
[email protected]
http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org

Reply via email to