[gpfsug-discuss] Quotas and non-existant users

[P Serocka]

Any chance to run mmcheckquota? which should remove all "doubt"...


On 2014 Nov 27. md, at 17:47 st, Jonathan Buzzard wrote:

> On Wed, 2014-11-26 at 10:14 +0000, Laurence Alexander Hurst wrote:
>> Hmm, mmrepquota is reporting no files owned by any of the users in
>> question.  I¹ll see if `find` disagrees.
>>  They have the default fileset
>> user quotas applied, so they¹re not users we¹ve edited to grant quota
>> extensions to.  We have had a problem (which IBM have acknowledged, iirc)
>> whereby it is not possible to reset a user¹s quota back to the default if
>> it has been modified, perhaps this is related?  I¹ll see if `find` turns
>> anything up or I¹ll raise a ticket with IBM and see what they think.
>> 
>> I¹ve pulled out a single example, but all 75 users I have are the same.
>> 
>> mmrepquota gpfs | grep 8695
>> 8695       nbu        USR               0          0 5368709120          0
>>    none |        0       0        0        0     none
>> 8695       bb         USR               0          0 1073741824          0
>>    none |        0       0        0        0     none
>> 
> 
> While the number of files and usage is zero look at those "in doubt"
> numbers. Until these also fall to zero then the users are not going to
> disappear from the quota reporting would be my guess. Quite why the "in
> doubt" numbers are still so large is another question. I have vague
> recollections of this happening to me when I deleted large amounts of
> data belonging to a user down to zero when I was clearing the file
> system up I mentioned before. Though to be honest most of my clearing up
> was identifying who the files really belonged to (there had in the
> distance past been a change of usernames; gone from local usernames to
> using the university wide ones and not everyone had claimed their files.
> All related to a move to using Active Directory) and doing chown's on
> the data.
> 
> I think what happens is when the file number goes to zero the quota
> system stops updating for that user and if there is anything "in doubt"
> it never gets updated and sticks around forever.
> 
> Might be worth creating a couple of files for the user in the
> appropriate filesets and then give it a bit of time and see if the
> output of mmrepquota matches what you believe is the real case. If this
> works and the "in doubt" number goes to zero I would at this point do a
> chown to a different user that is not going away and then delete the
> files.
> 
> Something else to consider is that they might be in an ACL somewhere
> which is confusing the quota system.
> 
> 
> JAB.
> 
> -- 
> Jonathan A. Buzzard                 Email: jonathan (at) buzzard.me.uk
> Fife, United Kingdom.
> 
> 
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