[gpfsug-discuss] Odd d????????? permissions

Simon Thompson (IT Research Support) S.J.Thompson at bham.ac.uk
Wed Feb 14 18:38:41 GMT 2018


Is it an AFM cache? We see this sort of behaviour occasionally where the cache has an "old" view of the directory. Doing an ls, it evidently goes back to home but by then you already have weird stuff. The next ls is usually fine.

Simon
________________________________________
From: gpfsug-discuss-bounces at spectrumscale.org [gpfsug-discuss-bounces at spectrumscale.org] on behalf of john.hearns at asml.com [john.hearns at asml.com]
Sent: 14 February 2018 09:00
To: gpfsug main discussion list
Subject: [gpfsug-discuss] Odd d????????? permissions

I am sure this is a known behavior and I am going to feel very foolish in a few minutes…

We often see this behavior on a GPFS filesystem.
I log into a client.

[jhearns at pn715 test]$ ls -la ../
ls: cannot access ../..: Permission denied
total 160
drwx------ 4 jhearns root   4096 Feb 14 09:46 .
d????????? ? ?       ?         ?            ? ..
drwxr-xr-x 2 jhearns users  4096 Feb  9 11:13 gpfsperf
-rw-r--r-- 1 jhearns users 27336 Feb  9 22:24 iozone.out
-rw-r--r-- 1 jhearns users  6083 Feb  9 10:55 IozoneResults.py
-rw-r--r-- 1 jhearns users 22959 Feb  9 11:17 iozone.txt
-rw-r--r-- 1 jhearns users  2977 Feb  9 10:55 iozone.txtvi
-rwxr-xr-x 1 jhearns users   102 Feb  9 10:55 run-iozone.sh
drwxr-xr-x 2 jhearns users  4096 Feb 14 09:46 test
-r-x------ 1 jhearns users 51504 Feb  9 11:02 tsqosperf

This behavior changes after a certain number of minutes, and the .. directory looks normal.

For information this filesystem has nfsv4 file locking semantics and ACL semantics set to all

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