rpm --rebuilddb failed with DB_NOSERVER_HOME error, using rpmdb on remote host with RPM RPC configuration

Issue

• rpm --rebuilddb command failed with the following error.

error: db4 error(-30991) from dbenv->open: DB_NOSERVER_HOME: Home unrecognized at server
error: cannot open Packages index using db3 -  (-30991)

• In this environment, RPM RPC server was configured upon https://access.redhat.com/site/solutions/25240. So, /usr/lib/rpm/rpmdb_svc process is running on the server.
• And, this problem occurred on the client side.
• The rpm command for install, remove, and so on doesn't fail. It can communicate with the server without any problem.