[Lustre-discuss] Quota problem

[Wojciech Turek]

Hi Folks,

My lustre and kernel version: 2.6.9-55.0.9.EL_lustre.1.6.3smp


I am experiencing few problems with lustre quotas.

1)
When I run: "lfs quotacheck -ug /home" I can see in syslog lots of  
LustreError messages
on mds
Nov 15 13:30:35 mds01.beowulf.cluster kernel: LustreError: 22395:0: 
(ldlm_lib.c:1629:target_handle_dqacq_callback()) dqacq failed! (rc:-5)

on oss
Nov 15 13:30:35 storage07.beowulf.cluster kernel: LustreError:  
15905:0:(quota_context.c:482:dqacq_completion()) acquire qunit got  
error! (rc:-5)

Is there someone who can explain reason for these errors?

2)
I set only hard limit for each user. The limit is 1TB
When I run lfs quota -u <username> /home I can see that some users  
have exceeded  their per OST limit even if they total usage if being  
far from limit. Also per OST limit seems to be not displayed  
correctly. If I add up per OST limits it will not equal total limit  
(see below for example)

Disk quotas for user se282 (uid 694):
      Filesystem  kbytes   quota   limit   grace   files   quota    
limit   grace
           /home 36479512       0 1000000000             886        
0       0
ddn_home-MDT0000_UUID
                     120       0  102400             886       0       0
ddn_home-OST0000_UUID
                 13217456*      0 11366400
ddn_home-OST0001_UUID
                 9115004*      0 7884800
ddn_home-OST0002_UUID
                 8324440       0 8396800
ddn_home-OST0003_UUID
                 5822492       0 5939200
3) Is the MAX quota hard limit 2TB ?
I set hard limit per user to 15TB.
lfs setquota -u se282 0 15000000000 0 0 /home
Then I check user quota:
lfs quota -u se282 /home

Disk quotas for user se282 (uid 694):
      Filesystem  kbytes   quota   limit   grace   files   quota    
limit   grace
           /home 36479512       0 2115098112             886        
0       0
ddn_home-MDT0000_UUID
                     120       0  102400             886       0       0
ddn_home-OST0000_UUID
                 13217456       0 13312000
ddn_home-OST0001_UUID
                 9114996       0 9216000
ddn_home-OST0002_UUID
                 8324440       0 8396800
ddn_home-OST0003_UUID
                 5822500       0 5939200

As you can see hard limit is  2115098112  instead of 15000000000


Thanks,

Wojciech Turek



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