On one of our clusters, from time to time if users try to access files or folders via the direct full path over NFS, the NFS-client gets invalid information from the server.
For instance, if I run "ls /gpfs/filesystem/test/test2/test3" over NFS-mount, result is just full of ???????? If I recurse through the path once, for instance by ls'ing or cd'ing through the folders one at a time or running ls -R, I can then access directly via the full path afterwards. This seem to be intermittent, and I haven't found how to reliably recreate the issue. Possibly, it can be connected to creating or changing files or folders via a GPFS mount, and then accessing them through NFS, but it doesn't happen consistently. Is this a known behaviour or bug, and does anyone know how to fix the issue? These NSD-servers currently run Scale 4.2.2.3, while the CES is on 5.0.1.1. GPFS clients run Scale 5.0.1.1, and NFS clients run CentOS 7.5. Regards, Andreas Mattsson _____________________________________________ Andreas Mattsson Systems Engineer MAX IV Laboratory Lund University P.O. Box 118, SE-221 00 Lund, Sweden Visiting address: Fotongatan 2, 224 84 Lund Mobile: +46 706 64 95 44 <mailto:andreas.matts...@maxiv.lu.se> andreas.matts...@maxiv.lu.se <http://www.maxiv.se/> www.maxiv.se
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