NetWorker: Backup fails "Authentication error; why = Invalid client credential"

Summary: Backup fails with warning message "Authentication error; why = Invalid client credential" when the backup user belongs to more than 32 groups

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Symptoms

Number of groups the user belongs to was increased.

Error:
  
Unable to create session channel to host clientname.domain.com to execute command 'savefs -s backupserver.domain.com -c clientname.domain.com -g groupname -p -l full -R -v -F RMAN:NAME RMAN:NAME': Authentication error; why = GSS-API credential problem

Cause

The backup user belongs to more than 32 groups.

Resolution

Workaround:  Reduce the number of groups the backup user belongs to to less than 32.
Engineering are working on a fix under bug 302186 which will permit more groups, which will be released in a future NetWorker version.
Note: It will be necessary to upgrade the NW server, storage node and client(s) for the bug changes to be effective.

Affected Products

NetWorker

Products

NetWorker
Article Properties
Article Number: 000052896
Article Type: Solution
Last Modified: 03 Mar 2025
Version:  4
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