The message "xtrabackup: open files limit requested %u, set to %u" is easy to miss. xtrabackup should add prepend "Warning:" to this message when setrlimit failed to set limits as requested.
The message "xtrabackup: open files limit requested %u, set to %u" is easy to miss. xtrabackup should add prepend "Warning:" to this message when setrlimit failed to set limits as requested.