We are running a cluster under CentOS 6.6. We recently attached a new NAS device, running CentOS 6.8 and rsync’d our user file system to it.
We noticed that all the files were owned by nobody (with nobody as the group). We copied over the /etc/passwd and /etc/group files from our front-end server to our NAS server. If we log in to the NAS server we see the files owned by their correct owners. However, doing an ls from the front-end server or any of the compute nodes still shows the files owned by “nobody”. We rebooted one of the compute nodes but it still sees the files owned by nobody.
Any advice would be greatly appreciated.