Message Delivery Module

The Message Delivery (MD) module is called by the DIST thread to optimize routing of transactions to data servers or other Replication Servers.

The DIST thread passes the transaction row and the destination ID to the MD module. Using this information and routing information in the RSSD, the module determines where to send the transaction:

To a data server via a DSI thread, or
To a Replication Server via an RSI thread.

After determining how to send the transaction, the MD module places the transaction into the appropriate outbound queue.