Prerequisites

Before performing the upgrade procedure, read the Release Notes for Oracle GoldenGate to determine whether the new release affects the following in your configuration:

• New default process behavior.

• Parameters that changed or were deprecated.

• Parameters that were added to support a desired new feature or database type.

• Parameter default values that have changed.

• New data type support that might require changes to TABLE or MAP statements.

• Interaction with native database components that might require database change.

For Oracle Database., if you are using symbolic links that point to the dir directories, you need to use the parameter ALLOWOUTPUTDIR within GLOBALS.

You also need to see the sections Patching for Classic Architecture, Patching Oracle Platform with OPatch, Preparing to Patch 19c, and Installing Patches for Release in the Installing Oracle GoldenGate guide.

You can prevent startup delays that can cause lag by having all of your parameter changes made ahead of time, so that they are ready when you restart the processes. You should not make parameter changes while a process is running, but you can:

1. Make a copy of the parameter file.
2. Make edits to the copy.
3. After you shut down the processes during the upgrade procedure, copy the old parameter file to a new name (to save it as backup).
4. Copy the new parameter file to the old parameter file's name.

• Upgrade Considerations if Using Character-Set Conversion
  
• Upgrade Considerations if Using Quoted Object Names