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RDS for PostgreSQL

WAL management

Viewing replication slot list

RDS for PostgreSQL displays all replication slots of instances on the console. this topic describes the procedure to view the instance replication slot list on the console.

Background information

Replication slot is a unique mechanism of PostgreSQL databases that prevents data loss or duplicate replication during streaming replication, enhancing data replication reliability.

RDS for PostgreSQL provides a replication slot list on the console to easily view relevant information of instance replication slots, such as name, type, used extension, database the slot is located, temporary slot or not, state, IP address source of the slot, WAL accumulation, and supported actions.

Prerequisites

Instances have been created and the instance is in Running state, for more details please see Creating an instance.

Procedure

In the upper-left corner of the top menu bar, select the project and region for the instance.

tip

If the project of the instance has not been set, the project should be selected as All resources.

Click on Instances in the left navigation bar.

On the Instances page, click on the target instance name.

At the top of the page, click Backups.

On the Backups tab, click the WAL management sub-tab to view the replication slot list.

tip

In the replication slot list, you can filter and view slots by the Slot type, Temporary slot or not, and State columns, and search for target extensions, target databases, or related source replication slots in the Used extension, Database the slot is located, and IP address columns.

When a PostgreSQL instance serves as the replication source for a Volc DTS task, DTS also creates corresponding replication slots. These replication slot names start with _volc_dts_logical_replica_. In the replication slot list, click the name of such replication slots to view, you can retrieve the ID of the DTS task associated with this replication slot. You can use this ID to check the task progress in the DTS console.

Related APIs

API	Description
DescribeSlots	Call DescribeSlots API to query the instance replication slots.

Last updated: 2025.11.17 16:15:07