Upgrading Adaptive Server in a Replication System

You can separately upgrade Adaptive Server in your replication system.

1. Suspend Replication and Transaction Activity in the Database
   Suspend replication and transaction activity in the database. Replication activity includes creating and dropping both routes and subscriptions.
2. Drain the Transaction Logs of the Primary Databases
   Ensure that the Replication Server completely processes the preupgrade log for each primary database you are upgrading.
3. Drain the RSSD Transaction Log
   Create a replication definition to manually drain the RSSD transaction log. This ensures that Replication Server processes all transactions in the RSSD log before you upgrade databases if Replication Server has routes to other Replication Servers.
4. Disable the Secondary Transaction Point
   Turn off the secondary truncation point for the duration of the upgrade and when you upgrade a primary database, the Replication Agent cannot be running.
5. Upgrade Adaptive Server
   See the Adaptive Server Enterprise Installation Guide for upgrade instructions.
6. Update the Adaptive Server System Catalog
   To ensure that replication proceeds correctly for objects with quoted identifiers created in versions of Adaptive Server earlier than 15.7, update the Adaptive Server system catalog after you upgrade Adaptive Server, but before you restore replication.
7. Restore Replication
   Restore replication after you perform the upgrade procedure.