NFS4 mounts hang on clients with many exports to netgroups

Solution Verified - Updated -

Issue

When an NFS server has many exports to netgroups a client may fail to mount a share with NFS4 (the mount command will hang indefinitely).

Environment

  • Red Hat Enterprise Linux 6
  • nfs-utils-1.2.3-15.el6
  • NFS-shares exported over NFSv4 with access restrictions in the netgroups format

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