The steps for installing Oracle GoldenGate Microservices Architecture for Oracle and Non-Oracle databases are the same. However, there are some prerequisites before you begin the installation.

The Oracle GoldenGate Microservices Architecture (MA) installation involves the following steps:

1. Install the Oracle GoldenGate software. See Performing an Interactive Installation with OUI for MA and Performing a Silent Installation with OUI.

2. Set the necessary environment variables for your database, if required.

   Note:

   (Oracle only) From the Oracle GoldenGate 21c release onward, ORACLE_HOME and LD_LIBRARY_PATH do not point to any database directories. With the unified build feature, these environment variables now point to the OGG_HOME (sub)directories as the Oracle Database Client Software is embedded in Oracle GoldenGate.

3. Run the Oracle GoldenGate Configuration Assistant (oggca) wizard to add a deployment for the Oracle GoldenGate installation. For steps to run the OGGCA utility, see Add a Deployment.

The installer registers the Oracle GoldenGate home directory ($OGG_HOME) with the central inventory that is associated with the selected database. The inventory stores information about all Oracle software products installed on a host if the product was installed using OUI.

Disk space is also required for the Oracle GoldenGate Bounded Recovery feature. Bounded Recovery is a component of the general Extract checkpointing facility. It caches long-running open transactions to disk at specific intervals to enable fast recovery upon a restart of Extract. At each bounded recovery interval (controlled by the BRINTERVAL option of the BR parameter) the disk required is as follows: for each transaction with cached data, the disk space required is usually 64k plus the size of the cached data rounded up to 64k. Not every long-running transaction is persisted to disk.

For complete information about Bounded Recovery, see the BR parameter in Parameters and Functions Reference for Oracle GoldenGate.