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In from Bug 412995 we have introduced a new simple metadata storage. We need to provide a migration from the legacy metadata storage (Orion 3.0 CompatibilityMetaStore) to the new simple metadata storage (Orion 4.0 SimpleMetaStore) We plan to have a command line utility to migrate the storage.
I have added the ProjectMigration utility to the org.eclipse.orion.tools bundle. There is a ProjectMigration.jardesc to create the ProjectMigration.jar The migration is run from the command line: java -jar /workspace/orion-dev/ProjectMigration.jar -usertree -root /opt/data/serverworkspace/ ProjectMigration: Usage: java -jar ProjectMigration.jar [ -flat | -usertree ] -root folder There is option for flat or usertree, depending on the need based on the value of orion.file.layout for the Orion server. Note that the migration does not handle the existing userId in the IOrionCredentialsService. This needs to be done. A secondary important topic is that I need to write JSON files so I needed to use the org.json library. I could not figure out how to get the org.json.jar into a classpath to run from the command line, so for now I just put the JSON sources in the org.eclipse.orion.tools bundle. This likely needs to be resolved, I am not sure if it is legal to consume the org.json source within the project.
(In reply to Anthony Hunter from comment #1) > Note that the migration does not handle the existing userId in the > IOrionCredentialsService. This needs to be done. This is now handled in commit http://git.eclipse.org/c/orion/org.eclipse.orion.server.git/commit/?id=28af8424d08717260e7b0213b5977c1f3267a428 You can now completely migrate a server from the old to new. You should first shutdown and backup the server. Next run the migration from the command line Add the setting orion.core.metastore=simple to your orion.conf so that you use the simple metadata storage You can also remove .metadata/.plugins/org.eclipse.orion.server.core/.settings, none of the prefs files are used anymore Start the server.
Cool! Let's try a test migration of orion.eclipse.org next week.
With commit http://git.eclipse.org/c/orion/org.eclipse.orion.server.git/commit/?id=bd438ff0160cf0757eb16be1cfd4654178b34101 I have completed the migration to the fourth draft of the design on Bug 412995 .
This delivery completes the feature: http://git.eclipse.org/c/orion/org.eclipse.orion.server.git/commit/?id=5d15dfdd411abce1afc8f9514b2afc6aea79f2ef The migration is now done live on server startup. The order of operations is: 1) backup the server, since the project data is renamed and moved, the largest change being the project data moved from /serverworkspace/A/A/B to /serverworkspace/an/anthony/Orion Content/Project Two/ 2) Add the property to the orion.conf orion.core.metastore=simple 3) Start the server. The orion log will indicate that migration has started and completed, as well as indicating the migration log location, .metadata/migration.log
