For a network using NIS and NFSv4, the change which has rpcidmapd caching uid/gid mappings causes a problem if /etc/fstab mounts an NFSv4 file system remotely owned by a uid/gid which will be resolved by NIS.
Files are shown as owned by user 'nobody'
Since rpcidmapd is trying to resolve user names
to uids and in a NIS environment that's done with ypbind.
Therefore, the following workaround by changing the priority of the services ypbind and ypserv should fixed the problem:
#> echo "# chkconfig: - 23 77" >/etc/chkconfig.d/ypbind
#> echo "# chkconfig: - 22 78" >/etc/chkconfig.d/ypserv
#> chkconfig ypbind resetpriorities
#> chkconfig ypserv resetpriorities
Please note that individual use case will need to be examined as which level of priorities for the serivce ypbind, and ypserv will need to be re-defined while rpcidmapd and ypbind are used together.