Upgrade instructions for mb_server release 20071014

If you have an existing installation of the MusicBrainz server, follow the instructions below to upgrade your installation to the latest and greatest. You can skip steps #0 and #7 if you’re not running a slave server.

Please follow these steps to upgrade your installation:

0. Make sure that all packets have been applied to current database. You should

see an error like this:

This replication packet matches schema sequence #9, but the database is currently at #8

You must upgrade your database in order to apply this replication packet

1. Check out the new code base from subversion and place it in the same top level

directory as the current codebase:

svn co http://svn.musicbrainz.org/mb_server/branches/RELEASE_20071014-BRANCH mb_server-20071014

3. Configure your new codebase and copy new config files:

cd mb_server-20071014/cgi-bin

cp DBDefs.pm.default DBDefs.pm

cd ../admin

cp startup.pl.default startup.pl

4. Edit cgi-bin/DBDefs.pm and admin/startup.pl and copy over the appropriate

configuration items from the old codebase:

a. DBDefs.pm needs DB config settings changed. Also make sure that REPLICATION_TYPE is

set to RT_SLAVE. Set the WEB_SERVER and RDF_SERVER settings to match your old

configuration. Then review the file to make sure nothing else needs changing.

It might be useful to diff your old config file against the new one to make sure

you handled everything.

b. startup.pl should only need the use lib line changed, if at all. Look for TODO.

Test your configuration by doing:

cd <to admin dir>


That should get you to your database server shell if everything is configured right. q to exit.

5. Turn off cron jobs that might affect the server update.

6. Run the automatic database upgrade script:

cd <top level mb_server dir>


This should run for quite some time as it updates the database to the latest and greatest.

7. Test the update by loading more replication changes:

cd replication


You should see your database catch up to the latest replication sequence.

8. Turn cron jobs back on.

9. You’re done!

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