[gpfsug-discuss] Issue with X forwarding

Vanessa Borcherding veb2005 at med.cornell.edu
Wed Jan 18 22:54:10 GMT 2017


Hi All,

We've got a new-ish 4.1.1.0 Advanced cluster and we've run into a strange
problem: users who have their home directory on the GPFS filesystem cannot
do X11 forwarding.  They get the following error:

"/usr/bin/xauth:  error in locking authority file /home/user/.Xauthority"
The file ~/.Xauthority is there and also a new one ~/.Xauthority-c.

Similarly, "xauth -b" also fails:

Attempting to break locks on authority file /home/user/.Xauthority
xauth:  error in locking authority file /home/user/.Xauthority

This behavior happens regardless of the client involved, and happens across
multiple OS/kernel versions, and if GPFS is mounted natively or via NFS
export. For any given host, if the user's home directory is moved to
another NFS-exported location, X forwarding works correctly.

Has anyone seen this before, or have any idea as to where it's coming from?


Thanks,

Vanessa

-- 
* * * * *

Vanessa Borcherding
Director, Scientific Computing
Technology Manager -
Applied Bioinformatics Core
Dept. of Physiology and Biophysics
Institute for Computational Biomedicine
Weill Cornell Medical College

(212) 746-6281 - office
(917) 861-9777 - cell

* * * * *
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