Type: integer
Default: 4
Min: 0
Max: 262143
Context: postmaster
Restart: true
Since: 10

Specifies maximum number of logical replication workers. This includes leader apply workers, parallel apply workers, and table synchronization workers.

Logical replication workers are taken from the pool defined by max_worker_processes.

The default value is 4. This parameter can only be set at server start.


… unless logical replication is falling behind and the replica isn't handling other traffic