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NDMP authentication fails after adding new node to cluster

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ndmp
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Applies to

  • ONTAP 9.7+
  • Joining nodes to the cluster
  • SVM-scoped NDMP

Issue

  • New nodes are added to the cluster
  • The cluster already has NDMP enabled, and authentication configured
  • The "control connection" LIF is moved to one of the new nodes
  • NDMP authentication fails with the errors

getpwnam_r failed with error: '2', errno: 2 [No such file or directory]
Error: show failed: Cannot get password for user 'username'

WARN: getpwnam_r failed with error: '2', errno: 2 [No such file or directory]. Retrying
ERROR: getpwnam_r failed after 4 tries.

  • If the "control connection" LIF is moved back to its original node, NDMP authentication works

Note:  The issue described here only affects SVM-scoped NDMP, not node-scoped NDMP. For node-scoped NDMP failing with MD5 AUTH FAILED to specific node(s), update the password to a known-good password.

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