[gpfsug-discuss] GPFS_CLEAR_FILE_CACHE fails on Read-Only FS

[IBM Spectrum Scale]

It seems like a defect.  Could you please open a help case and if possible 
provide a sample program and the steps you took to create the problem? 
Also, please provide the version of Scale you are using where you see this 
behavior.  This should result in a defect being opened against GPFS which 
will then be addressed by a member of the development team.

Regards, The Spectrum Scale (GPFS) team

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From:   "Hannappel, Juergen" <juergen.hannappel at desy.de>
To:     gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Date:   01/08/2021 07:33 AM
Subject:        [EXTERNAL] [gpfsug-discuss] GPFS_CLEAR_FILE_CACHE fails on 
Read-Only FS
Sent by:        gpfsug-discuss-bounces at spectrumscale.org



Hi,
in a program after reading a file I did a gpfs_fcntl() with 
GPFS_CLEAR_FILE_CACHE to get rid of the now unused pages in the file 
cache.
That works fine, but if the file system is read-only (in a remote cluster) 
this fails with a message that the file system is read only.
Is that expected behaviour or an unexpected feature (aka bug)?

-- 
Dr. Jürgen Hannappel  DESY/IT    Tel.  : +49 40 8998-4616
[attachment "smime.p7s" deleted by Frederick Stock/Pittsburgh/IBM] 
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