NFSv4: Getting Input/output error with NFS shares while reading contents of file in OpenStack environment

Solution Verified - Updated -

Issue

  • Receiving I/O errors when multiple OpenStack tenants with the same internal IP address, and different Floating IP address, access the same file.
  • Other OpenStack tenants with externally accessible IP addresses do not show this issue.

Environment

  • OpenStack with tenants sharing the same internal IP address and different floating IP address
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

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