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我正在尝试配置Barman进行备份。当我做一个barman check replica我不断收到：WAL存档：失败（请确保WAL运输已设置）
Server replica:
WAL archive: FAILED (please make sure WAL shipping is setup)
PostgreSQL: OK
superuser: OK
wal_level: OK
directories: OK
retention policy settings: OK
backup maximum age: FAILED (interval provided: 1 day, latest backup age: No available backups)
compression settings: OK
failed backups: OK (there are 0 failed backups)
minimum redundancy requirements: FAILED (have 0 backups, expected at least 2)
ssh: OK (PostgreSQL server)
not in recovery: FAILED (cannot perform exclusive backup on a standby)
archive_mode: OK
archive_command: OK
continuous archiving: OK
archiver errors: OK
我使用PostgreSQL 9.6和2.1酒保;我不确定这个问题有人可以帮忙吗？ 这里是我的酒保服务器配置：
description = "Database backup"
conninfo = host=<db-ip> user=postgres dbname=db
backup_method = rsync
ssh_command = ssh [email protected]<db-ip>
archiver = on