On the linux shell, run the below.
mongo use opaddress db.dropDatabase() exit /usr/local/omk/bin/opaddress-cli.pl act=setup-db
And that should be all you need to do.
Example console output doing that is below (with added show dbs to show the registered databases along with their sizes).
mark@dev:~$ mongo
MongoDB shell version v3.4.24
connecting to: mongodb://127.0.0.1:27017
MongoDB server version: 3.4.24
Server has startup warnings:
2021-10-14T18:10:22.745+1000 I STORAGE [initandlisten]
2021-10-14T18:10:22.745+1000 I STORAGE [initandlisten] ** WARNING: Using the XFS filesystem is strongly recommended with the WiredTiger storage engine
2021-10-14T18:10:22.745+1000 I STORAGE [initandlisten] ** See http://dochub.mongodb.org/core/prodnotes-filesystem
2021-10-14T18:10:24.881+1000 I CONTROL [initandlisten]
2021-10-14T18:10:24.882+1000 I CONTROL [initandlisten] ** WARNING: Access control is not enabled for the database.
2021-10-14T18:10:24.882+1000 I CONTROL [initandlisten] ** Read and write access to data and configuration is unrestricted.
2021-10-14T18:10:24.882+1000 I CONTROL [initandlisten]
> show dbs
admin 0.000GB
local 0.000GB
nmisng 0.011GB
opaddress 0.004GB
> use opaddess
switched to db opaddess
> db.dropDatabase()
{ "dropped" : "opaddress", "ok" : 1 }
> show dbs
admin 0.000GB
local 0.000GB
nmisng 0.011GB
> exit
bye
mark@dev:~$ /usr/local/omk/bin/opaddress-cli.pl act=setup-db
mark@dev:~$ mongo
MongoDB shell version v3.4.24
connecting to: mongodb://127.0.0.1:27017
MongoDB server version: 3.4.24
Server has startup warnings:
2021-10-14T18:10:22.745+1000 I STORAGE [initandlisten]
2021-10-14T18:10:22.745+1000 I STORAGE [initandlisten] ** WARNING: Using the XFS filesystem is strongly recommended with the WiredTiger storage engine
2021-10-14T18:10:22.745+1000 I STORAGE [initandlisten] ** See http://dochub.mongodb.org/core/prodnotes-filesystem
2021-10-14T18:10:24.881+1000 I CONTROL [initandlisten]
2021-10-14T18:10:24.882+1000 I CONTROL [initandlisten] ** WARNING: Access control is not enabled for the database.
2021-10-14T18:10:24.882+1000 I CONTROL [initandlisten] ** Read and write access to data and configuration is unrestricted.
2021-10-14T18:10:24.882+1000 I CONTROL [initandlisten]
> show dbs
admin 0.000GB
local 0.000GB
nmisng 0.011GB
opaddress 0.001GB
> exit
bye