Permission denied error when PostgreSQL uses 'rsync' in its backup jobs.

Solution Verified - Updated -

Issue

  • PostgreSQL returns a non-zero exit code while using rsync for the backup process. Rsync works fine from the command line. 

    sh: /usr/bin/rsync: Permission denied
2024-07-10 19:00:44.793 BST [2666298] FATAL:  XX000: archive command failed with exit code 126
2024-07-10 19:00:44.793 BST [2666298] DETAIL:  The failed archive command was: /usr/bin/rsync -a pg_wal/000000040000000300000068 /db/postgresql/pg13/archive/000000040000000300000068
&& rsync -e ssh  -a  pg_wal/000000040000000300000068

Environment

  • Red Hat Enterprise Linux 8

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