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I have recently upgraded my staging database server from MySQL 5.0.84 to 5.1.72. I am trying to restore the mysqldump after upgrade. The database name in the dump is gss-app. But the database folder name under /var/lib/mysql turned to be gss@022dapp, but when I login to mysql using mysql -u root -p and type show databases; it lists the database name as gss-app only and I can Use Database gss-app and list the tables using show tables command.

The restore was failed with an error Got a packet bigger than --max_allowed_packet size. That time the database was partially restored and I took that chance to rename the gss@022dapp folder to gss-app and logged into mysql shell.

It listed the database name as @mysql@gss-app and I was not able to get into the database. Now I'm running the database restore once again with --max_allowed_packet_size=1024M and I see the gss@022dapp folder was created in /var/lib/mysql.

Should I concern about the folder name in /var/lib/mysql? Or can I use a different database name while restoring?

Andrew Schulman
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Manny0606
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1 Answers1

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Specifically to your question about using a different name while restoring: with mysqldump you can either do mysqldump databasename or mysqldump --databases databasename. The former doesn't put a create db statement in it, the latter does.

When you have made the dump with the former statement, you can just manually create a new db and load the dump with something like mysql newdbname < dump.sql. In case of the latter, you can just open your dump file and change the name.

A sidenote, I think it's bad design on MySQL's mysqldump part to have this difference, BTW. If you backup without the --databases statement, you have to make a database first before you can restore. And that database might have a different charset or collation than what the database originally had. In my opinion, if you dump a database, it should contain all data and metadata. Same goes for having to supply --routines and --events. I can imagine options like --no-routines can be handy, but by default not dumping routines? Hmm.

Halfgaar
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