[LU-10247] Quota is not updated once quota limit has been reached

• Status: Open
• Project: Lustre
• Affects Version/s: Lustre 2.8.0
• Type: Bug
• Priority: Minor
• Reporter: Tatsushi Takamura
• Assignee: Hongchao Zhang
• Resolution: Unresolved
• Severity: 3

Description

Steps to reproduce are as follows:

1) create files until quota limit has been reached(ex. 3000 files)

# lfs setquota -u test -I 3000 /lustre/
# for i in `seq 1 3000`; do sudo -u test touch /lustre/test/$i; done
# lfs quota -v -u test /lustre
Disk quotas for user test (uid 1001):
     Filesystem  kbytes   quota   limit   grace   files   quota   limit   grace
        /lustre       0       0       0       -    3000*      0    3000       -
lustre-MDT0000_UUID
                      0       -       0       -    3000*      -    3000       -
lustre-MDT0001_UUID
                      0       -       0       -       0       -       0       -
lustre-OST0000_UUID
                      0       -       0       -       -       -       -       -
lustre-OST0001_UUID
                      0       -       0       -       -       -       -       -

2) update quota limit(ex. 4000 files)

 # lfs setquota -u test -I 4000 /lustre/

3) create files (over 3000 files)

 # for i in `seq 1 3010`; do sudo -u test touch /lustre/test/$i; done
 touch: cannot touch ‘/lustre/test/3001’: Disk quota exceeded
 touch: cannot touch ‘/lustre/test/3002’: Disk quota exceeded
 touch: cannot touch ‘/lustre/test/3003’: Disk quota exceeded
 touch: cannot touch ‘/lustre/test/3004’: Disk quota exceeded
 touch: cannot touch ‘/lustre/test/3005’: Disk quota exceeded
 touch: cannot touch ‘/lustre/test/3006’: Disk quota exceeded
 touch: cannot touch ‘/lustre/test/3007’: Disk quota exceeded
 touch: cannot touch ‘/lustre/test/3008’: Disk quota exceeded
 touch: cannot touch ‘/lustre/test/3009’: Disk quota exceeded
 touch: cannot touch ‘/lustre/test/3010’: Disk quota exceeded

 # lfs quota -v -u test /lustre
 Disk quotas for user test (uid 1001):
 Filesystem kbytes quota limit grace files quota limit grace
 /lustre 0 0 0 - 3000 0 4000 -
 lustre-MDT0000_UUID
 0 - 0 - 3000* - 3000 -
 lustre-MDT0001_UUID
 0 - 0 - 0 - 0 -
 lustre-OST0000_UUID
 0 - 0 - - - - -
 lustre-OST0001_UUID
 0 - 0 - - - - -
 Total allocated inode limit: 3000, total allocated block limit: 0

But, I cannot create more files than the limit set previously.
If I clear and reset quota, quota works correctly.

 # lfs setquota -u test -I 0 /lustre/
 # lfs setquota -u test -I 4000 /lustre/
 # for i in `seq 1 3010`; do sudo -u test touch /lustre/test/$i; done
 # echo $?
 0

Is this a bug or specification?
I cannnot find the description concerned from the lustre manual.

Comments

[John Hammond]

Hongchao, could you see if this issue is still present in master?

[Hongchao Zhang]

I can't reproduce the issue in master.