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Hi Jaime,
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<div class="">Thank you sooooo much for doing this and reporting back the results! They’re in line with what I would expect to happen. I was going to test this as well, but we have had to extend our downtime until noontime tomorrow, so I haven’t had a chance
to do so yet. Now I don’t have to… ;-)</div>
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<div class="">Kevin</div>
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<blockquote type="cite" class="">
<div class="">On Aug 4, 2016, at 10:59 AM, Jaime Pinto <<a href="mailto:pinto@scinet.utoronto.ca" class="">pinto@scinet.utoronto.ca</a>> wrote:</div>
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<div class="">Since there were inconsistencies in the responses, I decided to rig a couple of accounts/groups on our LDAP to test "My interpretation", and determined that I was wrong. When Kevin mentioned it would mean a bug I had to double-check:<br class="">
<br class="">
If a user hits the hard quota or exceeds the grace period on the soft quota on any of the secondary groups that user will be stopped from further writing to those groups as well, just as in the primary group.<br class="">
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I hope this clears the waters a bit. I still have to solve my puzzle.<br class="">
<br class="">
Thanks everyone for the feedback.<br class="">
Jaime<br class="">
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<br class="">
Quoting "Jaime Pinto" <<a href="mailto:pinto@scinet.utoronto.ca" class="">pinto@scinet.utoronto.ca</a>>:<br class="">
<br class="">
<blockquote type="cite" class="">Quoting "Buterbaugh, Kevin L" <<a href="mailto:Kevin.Buterbaugh@vanderbilt.edu" class="">Kevin.Buterbaugh@Vanderbilt.Edu</a>>:<br class="">
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<blockquote type="cite" class="">Hi Sven,<br class="">
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Wait - am I misunderstanding something here? Let?s say that I have ?user1? who has primary group ?group1? and secondary group ?group2?. And let?s say that they write to a directory where the bit on the directory forces all files created in that directory
to have group2 associated with them. Are you saying that those files still count against group1?s group quota???<br class="">
<br class="">
Thanks for clarifying?<br class="">
<br class="">
Kevin<br class="">
</blockquote>
<br class="">
Not really,<br class="">
<br class="">
My interpretation is that all files written with group2 will count<br class="">
towards the quota on that group. However any users with group2 as the<br class="">
primary group will be prevented from writing any further when the<br class="">
group2 quota is reached. However the culprit user1 with primary group<br class="">
as group1 won't be detected by gpfs, and can just keep going on writing<br class="">
group2 files.<br class="">
<br class="">
As far as the individual user quota, it doesn't matter: group1 or<br class="">
group2 it will be counted towards the usage of that user.<br class="">
<br class="">
It would be interesting if the behavior was more as expected. I just<br class="">
checked with my Lustre counter-parts and they tell me whichever<br class="">
secondary group is hit first, however many there may be, the user will<br class="">
be stopped. The problem then becomes identifying which of the secondary<br class="">
groups hit the limit for that user.<br class="">
<br class="">
Jaime<br class="">
<br class="">
<br class="">
<blockquote type="cite" class=""><br class="">
On Aug 3, 2016, at 11:35 AM, Sven Oehme <<a href="mailto:oehmes@gmail.com" class="">oehmes@gmail.com</a><<a href="mailto:oehmes@gmail.com" class="">mailto:oehmes@gmail.com</a>>> wrote:<br class="">
<br class="">
Hi,<br class="">
<br class="">
quotas are only counted against primary group<br class="">
<br class="">
sven<br class="">
<br class="">
<br class="">
On Wed, Aug 3, 2016 at 9:22 AM, Jaime Pinto <<a href="mailto:pinto@scinet.utoronto.ca" class="">pinto@scinet.utoronto.ca</a><<a href="mailto:pinto@scinet.utoronto.ca" class="">mailto:pinto@scinet.utoronto.ca</a>>> wrote:<br class="">
Suppose I want to set both USR and GRP quotas for a user, however GRP is not the primary group. Will gpfs enforce the secondary group quota for that user?<br class="">
<br class="">
What I mean is, if the user keeps writing files with secondary group as the attribute, and that overall group quota is reached, will that user be stopped by gpfs?<br class="">
<br class="">
Thanks<br class="">
Jaime<br class="">
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Jaime Pinto<br class="">
SciNet HPC Consortium - Compute/Calcul Canada<br class="">
<a href="http://www.scinet.utoronto.ca" class="">www.scinet.utoronto.ca</a><<a href="http://www.scinet.utoronto.ca/" class="">http://www.scinet.utoronto.ca/</a>> - <a href="http://www.computecanada.org" class="">www.computecanada.org</a><<a href="http://www.computecanada.org/" class="">http://www.computecanada.org/</a>><br class="">
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Toronto, ON, M5T1W5<br class="">
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C: 416-505-1477<<a href="tel:416-505-1477" class="">tel:416-505-1477</a>><br class="">
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</blockquote>
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---<br class="">
Jaime Pinto<br class="">
SciNet HPC Consortium - Compute/Calcul Canada<br class="">
<a href="http://www.scinet.utoronto.ca" class="">www.scinet.utoronto.ca</a> - <a href="http://www.computecanada.org" class="">
www.computecanada.org</a><br class="">
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<div class="">
<div class="">—</div>
<div class="">Kevin Buterbaugh - Senior System Administrator</div>
<div class="">Vanderbilt University - Advanced Computing Center for Research and Education</div>
<div class=""><a href="mailto:Kevin.Buterbaugh@vanderbilt.edu" class="">Kevin.Buterbaugh@vanderbilt.edu</a> - (615)875-9633</div>
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