We are running CDOT 9.3P2 with an SVM providing NFS v4 services.
We are running in to problems with NFSv4 clients creating a huge number of locks, to the point where the SVM slows to a crawl, and eventually stops responding. Even Powershell get-nclocks becomes unresponsive, at some unknown point. We just can't seem to finger where that point is.
Our current plan is to migrate to CDOT 9.3P9; Has anyone else seen these issues? I have read the NFSv4 RFC's and I understand that it leaves a lot to the client, but we are committed to NFSv4 due to RHEL 7, and need to stabilize our CDOT cluster.
TasP