Warning: A partial dump from ...
mysqldumpしようとすると発生。
Warning: A partial dump from a server that has GTIDs will by default include the GTIDs of all transactions, even those that changed suppressed parts of the database. If you don't want to restore GTIDs, pass --set-gtid-purged=OFF. To make a complete dump, pass --all-databases --triggers --routines --events.
エラーメッセージをちゃんとみていなかったのですが、 --set-gtid-purged=OFFをオプションにつけて再度mysqldumpコマンドを叩けばOK.
こちらの記事を参考。