Le 13/05/2020 à 02:13, Orion Poplawski a écrit : > On 5/12/20 2:46 AM, Patrick Bégou wrote: >> Hi, >> >> I need some help with NFSv4 setup/tuning. I have a dedicated nfs server >> (2 x E5-2620 8cores/16 threads each, 64GB RAM, 1x10Gb ethernet and 16x >> 8TB HDD) used by two servers and a small cluster (400 cores). All the >> servers are running CentOS 7, the cluster is running CentOS6. >> >> Time to time on the server I get: >> >> kernel: NFSD: client xxx.xxx.xxx.xxx testing state ID with >> incorrect client ID >> >> And the client xxx.xxx.xxx.xxx freeze whith: >> >> kernel: nfs: server xxxxx.legi.grenoble-inp.fr not responding, >> still trying >> kernel: nfs: server xxxxx.legi.grenoble-inp.fr OK >> kernel: nfs: server xxxxx.legi.grenoble-inp.fr not responding, >> still trying >> kernel: nfs: server xxxxx.legi.grenoble-inp.fr OK >> >> There is a discussion on RedHat7 support about this but only open to >> subscribers. Other searches with google do not provide useful >> information. > > FYI - you can get access to such info with a free RHEL developers > account. > > Thanks for your suggestion. As the problem is back I've subscribed to reach the full content of this discussion. The answer was "do not use antivirus" :-(. I do not use antivirus as I am CentOS only. Patrick