See What's New in Avalon 6 for more details.
Prepare R6 for migration
The option to upgrade in place is not available to go from Release 5 of Avalon to Release 6. Instead, follow these steps.
# ensure that Fedora, Solr, and the DB are clean # it will ask you to verify the targets are correct bundle exec rake avalon:wipeout
Migrate Config Files
- config/authentication.yml – has a new structure with a different section for each rails environment. Edit your authentication particulars to incorporate this new structure. See example: config/authentication.yml.example.
- config/controlled_vocabulary.yml – should be copied from R5 to R6 to support data migrations
- config/initializers/permalink.rb – if in use, it will likely need to be adjusted to refer to objects in the Fedora 4 way (id, instead of pid)
Dump R5 database
Data from your R5 database will be loaded directly into your R6 database then migrated for R6 in a later step. Role_map data will be needed in R6 for the Fedora migrate step, so it needs to be imported first.
# This example is for mysql. Adjust as necessary for your R5 database. mysqldump -u avalonweb -p avalonweb --no-create-info --complete-insert --tables annotations api_tokens bookmarks courses identities ingest_batches playlist_items playlists role_maps users > /tmp/avalon.r5.dump.sql
Load to R6 database
SSH into your R6 box and load the R5 database dump.
Sqllite3 doesn't like mysql dump files so a transformation script needs to be run on it. Download https://raw.githubusercontent.com/dumblob/mysql2sqlite/master/mysql2sqlite, make it executable, and run it on the dump file.
".read" returns "memory", which is good.
Migrate Fedora Objects
SSH tunnel or open up your fedora3 server to your new Avalon app:
# Choose an available local port to use as a mirror of your fedora3.host:8983 import source # In this example 9999 is used. It must match the port used in fedora3.yml in the next step ssh -L 9999:localhost:8983 firstname.lastname@example.org
keep the ssh mirror running in another tab as you do the next steps.
Setup config/fedora3.yml in your Avalon 6 app
The fedora3.yml should work without change, but if you do have trouble, here's an example fedora3.yml for the avalon demo server.
development: user: fedoraAdmin password: <password> url: http://localhost:9999/fedora test: user: fedoraAdmin password: <password> url: http://localhost:9999/fedora production: user: fedoraAdmin password: <password> url: http://localhost:9999/fedora
Run the migration!
You can watch it run on your target avalon by going to <your avalon url>/admin/migration_report .
After this command is finished, look through the report and see which items have failed and troubleshoot using the errors listed.
Migrate Database Tables
# Run script to map fedora 3 pids in database to newly minted fedora 4 noids bundle exec rake avalon:migrate:db
Delete Failed Bookmarks
#This will delete any bookmarks that point to failed items bundle exec rake avalon:migrate:bookmark_cleanup