max_wal_senders

A configuration parameter determining the maximum number of concurrent replication connections

max_wal_senders is a configuration parameter determining the maximum number of concurrent replication connections.

max_wal_senders was added in PostgreSQL 9.0.

Default value

The default value for max_wal_senders is:

Usage

On a standby, max_wal_senders must be set to the same or higher value as on the primary.

The current value of max_wal_senders is one of the configuration parameters recorded in pg_control (PostgreSQL 12 and later).

Change history

Categories

Critical standby configuration item, GUC configuration item, Replication