[LU-3220] Quota doesn't work right with DNE

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.5.0
• Affects Version/s: Lustre 2.4.0
• Labels: dne
• Severity: 3
• Assignee: Niu Yawei (Inactive)
• Reporter: Sarah Liu

Description

Here are the test steps:
1. setup the system with 2 MDTs and quota enabled.
2. setup inode quota for user/group quota_usr

/usr/bin/lfs setquota -u quota_usr -b 0 -B 10M -i 0 -I 5 /mnt/lustre
/usr/bin/lfs setquota -g quota_usr -b 0 -B 10M -i 0 -I 5 /mnt/lustre

3. check user quota shows that MDT0 has limit 5 while MD1 has limit 0

[root@client-5 tests]# lfs quota -v -u quota_usr /mnt/lustre
Disk quotas for user quota_usr (uid 60000):
     Filesystem  kbytes   quota   limit   grace   files   quota   limit   grace
    /mnt/lustre       4       0   10240       -       1       0       5       -
lustre-MDT0000_UUID
                      4       -       0       -       1       -       5       -
lustre-MDT0001_UUID
                      0       -       0       -       0       -       0       -
lustre-OST0000_UUID
                      0       -       0       -       -       -       -       -

4. create 2 dirs "test" and "test2", "test" is on the default MDT, "test2" is on the second MDT with "lfs mkdir -i 1 ..."
5. chown to quota_usr for these 2 dirs
6. I can only touch file under dir "test" while got "Disk quota exceede" in "test2"

[root@client-5 tests]# chown quota_usr.quota_usr /mnt/lustre/test
[root@client-5 tests]# chown quota_usr.quota_usr /mnt/lustre/test2/
[root@client-5 tests]# lfs quota -v -u quota_usr /mnt/lustre
Disk quotas for user quota_usr (uid 60000):
     Filesystem  kbytes   quota   limit   grace   files   quota   limit   grace
    /mnt/lustre       8       0   10240       -       2       0       5       -
lustre-MDT0000_UUID
                      4       -       0       -       1       -       5       -
lustre-MDT0001_UUID
                      4       -       0       -       1*      -       1       -
lustre-OST0000_UUID
                      0       -       0       -       -       -       -       -
[root@client-5 tests]# ./runas -u 60000 -g 60000 touch /mnt/lustre/test2/a1
running as uid/gid/euid/egid 60000/60000/60000/60000, groups:
 [touch] [/mnt/lustre/test2/a1]
touch: cannot touch `/mnt/lustre/test2/a1': Disk quota exceeded
[root@client-5 tests]# ./runas -u 60000 -g 60000 touch /mnt/lustre/test/a1
running as uid/gid/euid/egid 60000/60000/60000/60000, groups:
 [touch] [/mnt/lustre/test/a1]
[root@client-5 tests]#