USERID syntax warning in GoldenGate Migration Utility

When running the GoldenGate migration utility, which I presented in a previous blog post, you might encounter the following warning on USERID syntax:

WARNING: USERID/PASSWORD parameter is no longer supported and will be modified to use USERIDALIAS for the database credentials.

This is not really a surprise, since USERID is an old syntax that should not be used anymore. In fact, it is not even part of the latest versions of GoldenGate. Let’s see a very basic example of a replicat running in the GoldenGate 19c Classic Architecture.

GGSCI (ogg) 1> view params rep
REPLICAT rep
USERIDALIAS dbi_blog
MAP PDB1.APP_PDB1.SOURCE, PDB2.APP_PDB2.TARGET,
COLMAP (
    COL_SOURCE_USER = COL_TARGET_USER,
    COL_SOURCE_USERID = COL_TARGET_USERID
);

Nothing here should be a cause for concern, because the database connection is done with the USERIDALIAS syntax. Yet, when running the migration utility in dryrun mode, I get the following warning:

Migration of Extract E2T Completed Successfully.

Parameter file for REPLICAT REP has the following warnings:
        WARNING: USERID/PASSWORD parameter is no longer supported and will be modified to use USERIDALIAS for the database credentials.

Migrating REPLICAT REP to http://oggma:port.

Parameter File rep.prm Saved Successfully.

Checkpoint File(s) Copied and Converted Successfully.

REPLICAT REP patched.

...

Migration Summary

    Migration of Replicat REP ..............................: Successful
...

It is technically not an error, and the migration utility seems to have no problem migrating this replicat to the new Microservices Architecture. However, a question remains. Will USERID be replaced in the process ? Of course, we do not want all USERID occurrences to be replaced with USERIDALIAS, if these are not connection keywords.

Let’s run the migration utility, for real this time, to see what happens. The output of the migration utility is exactly the same as before. The process is migrated with a warning on the USERID syntax.

WARNING: USERID/PASSWORD parameter is no longer supported and will be modified to use USERIDALIAS for the database credentials.

And if we look at the migrated parameter file:

> grep USERID $OGG_DEPLOYMENT_HOME/etc/conf/ogg/rep.prm
USERIDALIAS dbi_blog
    COL_SOURCE_USER = COL_TARGET_USER,
    COL_SOURCE_USERID = COL_TARGET_USERID

In this specific case, despite the warning on USERID, the migration utility did not change the parameter file. But of course, if you get the warning, you should always check the migrated parameter file before restarting your GoldenGate processes:

> diff $OLD_OGG_HOME/dirprm/rep.prm $OGG_DEPLOYMENT_HOME/etc/conf/ogg/rep.prm