Can I safely delete the migrate tables after migration? I passed a site from d7 to d8
I wanted to know if I can delete tables db migrate map d7 and migrate messages d7
they are more than a hundred
I can delete db tables migrate map d7 and migrate d7 messages of types of content that no longer exist on d8?

http://fortecad.altervista.org/ottomigratemapImmagine.jpg

http://fortecad.altervista.org/ottomigratemessaggeImmagine.jpg

regards
Yes. If you're doing a "one-and-done" migration you can remove the tables. Just make sure to:


uninstall the migration modules
remove your relevant migration config
then remove your DB tables once you have no code/config dependant on these tables.


Note, the caveat is you're wiping out your migration history.

The migration framework has an ongoing issue about this topic. These tables are persisted since these they capture migration source/destination metadata. The metadata is important if you have a phased, or ongoing, migration. If your migration project is over, the metadata has no relevance.