database-restore - Azure Database for PostgreSQL：从 Azure Backup Vault 还原 LTR 备份时出现“InvalidInputs”错误

Question

我正在尝试使用 Azure Backup Vault 还原长期保留 (LTR) Azure Database for PostgreSQL 数据库备份，如这些文章中所述：

• https://docs.microsoft.com/en-us/azure/backup/backup-azure-database-postgresql（备份配置步骤）
• https://download.microsoft.com/download/9/1/9/91990314-33bd-4eaa-a084-d1f7e6175ee1/AzBkpPostgres_ManualPermissions.docx（由上述文章间接链接）

LTR 备份完成没有问题，但是，将它们还原到 Azure Database for PostgreSQL 资源会导致“InvalidInputs”错误：

在活动日志中：

    "properties": {
        "statusMessage": "{\"status\":\"Failed\",\"error\":{\"code\":\"ResourceOperationFailure\",\"message\":\"The resource operation completed with terminal provisioning state 'Failed'.\",\"details\":[{\"code\":\"InvalidInputs\",\"message\":\"\",\"additionalInfo\":[{\"type\":\"UserFacingError\",\"info\":{\"message\":\"\",\"recommendedAction\":[\"\"],\"code\":\"InvalidInputs\",\"target\":\"\",\"isRetryable\":false,\"isUserError\":false,\"properties\":{\"ActivityId\":\"a7a2867e-8889-41c4-a5cf-37fd1394d3d6-Ibz\"}}}]}]}}",
        "eventCategory": "Administrative",
        "entity": "/subscriptions/XXXXXXXXXX/resourceGroups/poc-rg/providers/Microsoft.DataProtection/backupVaults/XXXXXXXXXXpoc-psql-bv-2/backupInstances/XXXXXXXXXXpoc-psql-2-backup_restore_test_2",
        "message": "Microsoft.DataProtection/backupVaults/backupInstances/ValidateRestore/action",
        "hierarchy": "30ff29b8-a165-42a0-a594-f726229a5954"
    },

恢复到 Azure 存储帐户会导致此错误：

    "properties": {
        "statusMessage": "{\"status\":\"Failed\",\"error\":{\"code\":\"ResourceOperationFailure\",\"message\":\"The resource operation completed with terminal provisioning state 'Failed'.\",\"details\":[{\"code\":\"SMAWTeeInternalError\",\"message\":\"Microsoft Azure Backup encountered an internal error.\",\"additionalInfo\":[{\"type\":\"UserFacingError\",\"info\":{\"message\":\"Microsoft Azure Backup encountered an internal error.\",\"recommendedAction\":[\"Wait for a few minutes and then try the operation again. If the issue persists, please contact Microsoft support.\"],\"code\":\"SMAWTeeInternalError\",\"target\":\"\",\"isRetryable\":false,\"isUserError\":false,\"properties\":{\"ActivityId\":\"a7a2867e-8889-41c4-a5cf-37fd1394d3dd-Ibz\"}}}]}]}}",
        "eventCategory": "Administrative",
        "entity": "/subscriptions/XXXXXXXXXX/resourceGroups/poc-rg/providers/Microsoft.DataProtection/backupVaults/XXXXXXXXXXpoc-psql-bv-2/backupInstances/XXXXXXXXXXpoc-psql-2-backup_restore_test_2",
        "message": "Microsoft.DataProtection/backupVaults/backupInstances/ValidateRestore/action",
        "hierarchy": "30ff29b8-a165-42a0-a594-f726229a5954"
    },

我已尝试使用 Azure Database for PostgreSQL 版本 10 和 11。该azure_backup角色被授予以下权限：

ALTER USER azure_backup WITH CREATEDB;
GRANT azure_pg_admin TO azure_backup;

任何见解或帮助表示赞赏。

谢谢！