<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">
Hi Olaf,
<div class=""><br class="">
</div>
<div class="">We will continue upgrading clients in a rolling fashion, but with ~700 of them, it’ll be a few weeks. And to me that’s good … I don’t consider figuring out why this is happening a waste of time and therefore having systems on both versions is
a good thing.</div>
<div class=""><br class="">
</div>
<div class="">While I would prefer not to paste actual group names and GIDs into this public forum, I can assure you that on every 4.2.1.1 system that I have tried this on:</div>
<div class=""><br class="">
</div>
<div class="">1. mmrepquota reports mostly GIDs, only a few group names</div>
<div class="">2. /etc/nsswitch.conf says to look at files first</div>
<div class="">3. the GID is in /etc/group</div>
<div class="">4. length of group name doesn’t matter</div>
<div class=""><br class="">
</div>
<div class="">I have a support contract with IBM, so I can open a PMR if necessary. I just thought someone on the list might have an idea as to what is happening or be able to point out the obvious explanation that I’m missing. ;-)</div>
<div class=""><br class="">
</div>
<div class="">Thanks…</div>
<div class=""><br class="">
</div>
<div class="">Kevin</div>
<div class=""><br class="">
<div>
<blockquote type="cite" class="">
<div class="">On Jan 19, 2017, at 10:05 AM, Olaf Weiser <<a href="mailto:olaf.weiser@de.ibm.com" class="">olaf.weiser@de.ibm.com</a>> wrote:</div>
<br class="Apple-interchange-newline">
<div class=""><font size="2" face="sans-serif" class="">unfortunately , I don't own a cluster right now, which has 4.2.2 to double check... SpectrumScale should resolve the GID into a name, if it find the name somewhere...
</font><br class="">
<br class="">
<font size="2" face="sans-serif" class="">but in your case.. I would say.. before we waste to much time in a version-mismatch issue.. finish the rolling migration, especially RHEL .. and then we continue
</font><br class="">
<font size="2" face="sans-serif" class="">meanwhile -I'll try to find a way for me here to setup up an 4.2.2. cluster</font><br class="">
<font size="2" face="sans-serif" class="">cheers</font><br class="">
<br class="">
<br class="">
<br class="">
<font size="1" color="#5f5f5f" face="sans-serif" class="">From: </font><font size="1" face="sans-serif" class="">"Buterbaugh, Kevin L" <<a href="mailto:Kevin.Buterbaugh@Vanderbilt.Edu" class="">Kevin.Buterbaugh@Vanderbilt.Edu</a>></font><br class="">
<font size="1" color="#5f5f5f" face="sans-serif" class="">To: </font><font size="1" face="sans-serif" class="">gpfsug main discussion list <<a href="mailto:gpfsug-discuss@spectrumscale.org" class="">gpfsug-discuss@spectrumscale.org</a>></font><br class="">
<font size="1" color="#5f5f5f" face="sans-serif" class="">Date: </font><font size="1" face="sans-serif" class="">01/19/2017 04:48 PM</font><br class="">
<font size="1" color="#5f5f5f" face="sans-serif" class="">Subject: </font><font size="1" face="sans-serif" class="">Re: [gpfsug-discuss] mmrepquota and group names in GPFS 4.2.2.x</font><br class="">
<font size="1" color="#5f5f5f" face="sans-serif" class="">Sent by: </font><font size="1" face="sans-serif" class=""><a href="mailto:gpfsug-discuss-bounces@spectrumscale.org" class="">gpfsug-discuss-bounces@spectrumscale.org</a></font><br class="">
<hr noshade="" class="">
<br class="">
<br class="">
<br class="">
<font size="3" class="">Hi Olaf, </font><br class="">
<br class="">
<font size="3" class="">The filesystem manager runs on one of our servers, all of which are upgraded to 4.2.2.x.</font><br class="">
<br class="">
<font size="3" class="">Also, I didn’t mention this yesterday but our /etc/nsswitch.conf has “files” listed first for /etc/group.</font><br class="">
<br class="">
<font size="3" class="">In addition to a mixture of GPFS versions, we also have a mixture of OS versions (RHEL 6/7). AFAIK tell with all of my testing / experimenting the only factor that seems to change the behavior of mmrepquota in regards to GIDs versus
group names is the GPFS version.</font><br class="">
<br class="">
<font size="3" class="">Other ideas, anyone? Is anyone else in a similar situation and can test whether they see similar behavior?</font><br class="">
<br class="">
<font size="3" class="">Thanks...</font><br class="">
<br class="">
<font size="3" class="">Kevin</font><br class="">
<br class="">
<font size="3" class="">On Jan 19, 2017, at 2:45 AM, Olaf Weiser <</font><a href="mailto:olaf.weiser@de.ibm.com" class=""><font size="3" color="blue" class=""><u class="">olaf.weiser@de.ibm.com</u></font></a><font size="3" class="">> wrote:</font><br class="">
<br class="">
<font size="2" face="sans-serif" class="">have you checked, where th fsmgr runs as you have nodes with different code levels</font><font size="3" class=""><br class="">
</font><font size="2" face="sans-serif" class=""><br class="">
mmlsmgr </font><font size="3" class=""><br class="">
<br class="">
<br class="">
<br class="">
</font><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
From: </font><font size="1" face="sans-serif" class="">"Buterbaugh, Kevin L" <</font><a href="mailto:Kevin.Buterbaugh@Vanderbilt.Edu" class=""><font size="1" color="blue" face="sans-serif" class=""><u class="">Kevin.Buterbaugh@Vanderbilt.Edu</u></font></a><font size="1" face="sans-serif" class="">></font><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
To: </font><font size="1" face="sans-serif" class="">gpfsug main discussion list <</font><a href="mailto:gpfsug-discuss@spectrumscale.org" class=""><font size="1" color="blue" face="sans-serif" class=""><u class="">gpfsug-discuss@spectrumscale.org</u></font></a><font size="1" face="sans-serif" class="">></font><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
Date: </font><font size="1" face="sans-serif" class="">01/18/2017 04:57 PM</font><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
Subject: </font><font size="1" face="sans-serif" class="">[gpfsug-discuss] mmrepquota and group names in GPFS 4.2.2.x</font><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
Sent by: </font><a href="mailto:gpfsug-discuss-bounces@spectrumscale.org" class=""><font size="1" color="blue" face="sans-serif" class=""><u class="">gpfsug-discuss-bounces@spectrumscale.org</u></font></a><font size="3" class=""><br class="">
</font>
<hr noshade="" class="">
<font size="3" class=""><br class="">
<br class="">
<br class="">
Hi All, <br class="">
<br class="">
We recently upgraded our cluster (well, the servers are all upgraded; the clients are still in progress) from GPFS 4.2.1.1 to GPFS 4.2.2.1 and there appears to be a change in how mmrepquota handles group names in its’ output. I’m trying to get a handle on
it, because it is messing with some of my scripts and - more importantly - because I don’t understand the behavior.<br class="">
<br class="">
From one of my clients which is still running GPFS 4.2.1.1 I can run an “mmrepquota -g <fs>” and if the group exists in /etc/group the group name is displayed. Of course, if the group doesn’t exist in /etc/group, the GID is displayed. Makes sense.<br class="">
<br class="">
However, on my servers which have been upgraded to GPFS 4.2.2.1 most - but not all - of the time I see GID numbers instead of group names. My question is, what is the criteria GPFS 4.2.2.x is using to decide when to display a GID instead of a group name? It’s
apparently *not* the length of the name of the group, because I have output in front of me where a 13 character long group name is displayed but a 7 character long group name is *not* displayed - its’ GID is instead (and yes, both exist in /etc/group).<br class="">
<br class="">
I know that sample output would be useful to illustrate this, but I do not want to post group names or GIDs to a public mailing list … if you want to know what those are, you’ll have to ask Vladimir Putin… ;-)<br class="">
<br class="">
I am in the process of updating scripts to use “mmrepquota -gn <fs>” and then looking up the group name myself, but I want to try to understand this. Thanks…<br class="">
<br class="">
Kevin</font><br class="">
<font size="3" class=""><br class="">
</font><br class="">
<font size="3" class="">—</font><br class="">
<font size="3" class="">Kevin Buterbaugh - Senior System Administrator</font><br class="">
<font size="3" class="">Vanderbilt University - Advanced Computing Center for Research and Education</font><br class="">
<a href="mailto:Kevin.Buterbaugh@vanderbilt.edu" class=""><font size="3" color="blue" class=""><u class="">Kevin.Buterbaugh@vanderbilt.edu</u></font></a><font size="3" class="">- (615)875-9633</font><br class="">
<br class="">
<br class="">
<tt class=""><font size="2" class="">_______________________________________________<br class="">
gpfsug-discuss mailing list<br class="">
gpfsug-discuss at <a href="http://spectrumscale.org" class="">spectrumscale.org</a><br class="">
</font></tt><a href="http://gpfsug.org/mailman/listinfo/gpfsug-discuss" class=""><tt class=""><font size="2" class="">http://gpfsug.org/mailman/listinfo/gpfsug-discuss</font></tt></a><tt class=""><font size="2" class=""><br class="">
</font></tt><br class="">
<br class="">
<br class="">
_______________________________________________<br class="">
gpfsug-discuss mailing list<br class="">
gpfsug-discuss at <a href="http://spectrumscale.org" class="">spectrumscale.org</a><br class="">
<a href="http://gpfsug.org/mailman/listinfo/gpfsug-discuss" class="">http://gpfsug.org/mailman/listinfo/gpfsug-discuss</a><br class="">
</div>
</blockquote>
</div>
<br class="">
</div>
</body>
</html>