[lustre-discuss] quota: space accounting isn't functional

[Thomas Roth]

Hmm, stupid me - I had only some files belonging to user 'root' on that filesystem.
Checking the quota of a user when there are no user-files does not work.

So for the record: no quota, no space accounting if there is nothing to account for.


TLDR:
I have since reformatted, issued "lctl conf_param hebetest.quota.mdt=ug" and "lctl conf_param 
hebetest.quota.ost=ug", just to see these error messages again.

For the fun of it, I did "lctl conf_param hebetest.quota.mdt=u" and "lctl conf_param 
hebetest.quota.ost=u", which did not provoke these messages again.

I asked for my quota
--------------------------
lfs quota -v -u troth /lustre/testhebe
Disk quotas for usr troth :
      Filesystem  kbytes   quota   limit   grace   files   quota   limit   grace
/lustre/testhebe
                     [0]       0       0       -       0       0       0       -
hebetest-MDT0000_UUID
                       0       -       0       -       0       -       0       -
quotactl ost0 failed.
quotactl ost1 failed.
Total allocated inode limit: 0, total allocated block limit: 0
Some errors happened when getting quota info. Some devices may be not working or deactivated. The data 
in "[]" is inaccurate.
------------------------

"quotactl failed" never happens/is never explained?


Since measuring a zero is always tricky business, I put two directories pinned to my two OSTs and 
wrote one file each _as user troth_.

Now I get

-------------------------
lfs quota -v -u troth /lustre/testhebe
Disk quotas for usr troth (uid 4128):
      Filesystem  kbytes   quota   limit   grace   files   quota   limit   grace
/lustre/testhebe
                 1525409       0       0       -       4       0       0       -
hebetest-MDT0000_UUID
                       8       -       0       -       4       -       0       -
hebetest-OST0000_UUID
                  704780       -       0       -       -       -       -       -
hebetest-OST0001_UUID
                  820622       -       0       -       -       -       -       -
Total allocated inode limit: 0, total allocated block limit: 0
------------------------------------

(and of course the group quota also works).


Cheers,
Thomas

On 11/17/2017 03:51 PM, Thomas Roth wrote:
> Hi all,
> 
> I have this test system where the OSS are CentOS 7.4, ZFS 0.7.1, the MDS uses ldiskfs. Lustre version 
> = 2.10
> 
> When I check the quota of some user - "lfs quota -u troth /lustre/hebetest" - I'm told by the client 
> that the data may be inaccurate, log entry is
>  > LustreError: 10006:0:(osc_quota.c:291:osc_quotactl()) ptlrpc_queue_wait failed, rc: -2
>   while the OSS says
>  > can't enable quota enforcement since space accounting isn't functional. Please run tunefs.lustre 
> --quota ...
> 
> osd-*.*.quota_slave.info reads
> 
> target name:    hebetest-OST000..
> pool ID:        0
> type:           dt
> quota enabled:  none
> conn to master: setup
> space acct:     ug
> user uptodate:  glb[0],slv[0],reint[0]
> group uptodate: glb[0],slv[0],reint[0]
> project uptodate: glb[0],slv[0],reint[0]
> 
> everywhere.
> I have switched on quota enforcement in the meantime, so it is
> quota enabled:  ug
> by now. As expected, no impact.
> 
> But, "Space accounting" -  should just be there, once I have a ZFS backend?
> 
> rc: -2  = /* No such file or directory */   - which file is missing?
> Did I manage to delete a quota file on the OSTs? How did I do that?
> 
> 
> The "isn't functional" error message shows up in LU-9790, but that is about project quota.
> 
> 
> Regards,
> Thomas
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