If you do not replicate data from the active database into databases other than the standby database, Replication Server does not need a Distributor thread for the logical connection. You can disable the Distributor thread to save Replication Server resources.
To disable the Distributor thread, you must first drop any subscriptions for the data in the logical database. Then execute alter logical connection at the Replication Server:
alter logical connection to logical_ds.logical_db set distribution off
If you decide later to replicate data out of the active database, you can use this command to reenable the Distributor thread.
WARNING! If you disable the Distributor thread and then drop the standby database from the replication system, no Replication Server threads will be left to read the inbound queue from the active database. The inbound queue will continue to fill until you either add another standby database, set distribution to “on” for the logical connection, or drop the active database from the replication system.
