就我而言，如何使用 pg_basebackup 恢复 Postgres DB？

Question

我有两个数据库服务器和一个由 pg_basebackup 配置的备份。您可以在下面看到整个命令。

pg_basebackup -h $PGHOST -p $PGPORT -U $PGUSER -w -D $backup_dir/psql_base_backup_$(date +"%d-%m-%y") -l "$(date)" -F tar -z -R -P &>> $backup_dir/status.log

下面您可以看到我想要备份的产品数据库：

postgres=# \c sks-api
You are now connected to database "sks-api" as user "postgres".
sks-api=# \dt
             List of relations
 Schema |       Name       | Type  | Owner
--------+------------------+-------+-------
 public | clusters         | table | api
 public | migrations       | table | api
 public | nodepools        | table | api
 public | service_instance | table | api
 public | tasks            | table | api
 public | update_schedule  | table | api
 public | version_registry | table | api
(7 rows)

sks-api=# SHOW data_directory;
         data_directory
--------------------------------
 /var/lib/postgresql/13/cluster
(1 row)

现在，我正尝试恢复此数据库以进行测试。我创建了相同的两个服务器并执行以下操作：

systemctl stop postgresql
cd /home/user
tar -xzf base.tar.gz -C /var/lib/postgresql/13/cluster
tar -xzf pg_wal.tar.gz -C /var/lib/postgresql/13/cluster
systemctl start postgresql

但之后我在 sks-api db 中只看到两个表。我做错了什么？

sks-api=# \dt
                 List of relations
 Schema |    Name    | Type  |        Owner
--------+------------+-------+---------------------
 public | migrations | table | unknown (OID=16386)
 public | nodepools  | table | unknown (OID=16386)
(2 rows)