[gpfsug-discuss] Permissions issue in GPFS 4.2.3-4?

[David Johnson]

We ran into this back in mid February.
Never really got a satisfactory answer how it got this way, 
the thought was that a bunch of nodes were expelled during an mmchconfig, 
and the files ended up with the wrong permissions.  

 — ddj

> On Aug 30, 2017, at 3:26 PM, Buterbaugh, Kevin L <Kevin.Buterbaugh at Vanderbilt.Edu> wrote:
> 
> Hi All,
> 
> We have a script that takes the output of mmlsfs and mmlsquota and formats a users’ GPFS quota usage into something a little “nicer” than what mmlsquota displays (and doesn’t display 50 irrelevant lines of output for filesets they don’t have access to).  After upgrading to 4.2.3-4 over the weekend it started throwing errors it hadn’t before:
> 
> awk: cmd. line:11: fatal: cannot open file `/var/mmfs/gen/mmfs.cfg.show' for reading (Permission denied)
> mmlsfs: Unexpected error from awk. Return code: 2
> awk: cmd. line:11: fatal: cannot open file `/var/mmfs/gen/mmfs.cfg.show' for reading (Permission denied)
> mmlsfs: Unexpected error from awk. Return code: 2
> Home (user): 11.82G 30G 40G 10807 200000 300000  
> awk: cmd. line:11: fatal: cannot open file `/var/mmfs/gen/mmfs.cfg.show' for reading (Permission denied)
> mmlsquota: Unexpected error from awk. Return code: 2
> 
> It didn’t take long to track down that the mmfs.cfg.show file had permissions of 600 and a chmod 644 of it (on our login gateways only, which is the only place users run that script anyway) fixed the problem.
> 
> So I just wanted to see if this was a known issue in 4.2.3-4?  Notice that the error appears to be coming from the GPFS commands my script runs, not my script itself … I sure don’t call awk!  ;-)
> 
> Thanks…
> 
> Kevin
> —
> Kevin Buterbaugh - Senior System Administrator
> Vanderbilt University - Advanced Computing Center for Research and Education
> Kevin.Buterbaugh at vanderbilt.edu <mailto:Kevin.Buterbaugh at vanderbilt.edu> - (615)875-9633
> 
> 
> 
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