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In some cases, when you restore a large amount of content to your DSpace, the internal database counts (called "sequences") may get out of sync with the Handles of the content you just restored. As a best practice, it is highly recommended to always re-run the "update-sequences.sql" script on your DSpace database after a larger scale restore. This database script should be run while DSpace is stopped (you may either stop Tomcat or just the DSpace webapps). PostgreSQL/Oracle must be running. The script can be found in the following locations for PostgreSQL and Oracle, respectively Simply run: |
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In some cases, when you restore a large amount of content to your DSpace, the internal database counts (called "sequences") may get out of sync with the Handles of the content you just restored. As a best practice, it is highly recommended to always re-run the "update-sequences.sql" script on your DSpace database after a larger scale restore. This database script should be run while DSpace is stopped (you may either stop Tomcat or just the DSpace webapps). PostgreSQL/Oracle must be running. The script can be found in the following locations for PostgreSQL and Oracle, respectively Simply run: |
Cleaning up from a failed import
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Issue / Error Message | How to Fix this Problem |
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Ingest/Restore Error: "Group Administrator already exists" | If you receive this problem, you are likely attempting to Restore an Entire Site, but are not running the command in Force Replace Mode ( |
Ingest/Restore Error: "Unknown Metadata Schema encountered (mycustomschema)" | If you receive this problem, one or more of your Items is using a custom metadata schema which DSpace is currently not aware of (in the example, the schema is named "mycustomschema"). Because DSpace AIPs do not contain enough details to recreate the missing Metadata Schema, you must create it manually via the DSpace Admin UI. Please note that you only need to create the Schema. You do not need to manually create all the fields belonging to that schema, as DSpace will do that for you as it restores each AIP. Once the schema is created in DSpace, re-run your restore command. DSpace will automatically re-create all fields belonging to that custom metadata schema as it restores each Item that uses that schema. |
Ingest Error: "Could not find a parent DSpaceObject referenced as 'xxx/xxx'" | When you encounter this error message it means that an object could not be ingested/restored as it belongs to a parent object which doesn't currently exist in your DSpace instance. During a full restore process, this error can be skipped over and treated as a warning by specifying the ' |
Submit Error: PSQLException: ERROR: duplicate key value violates unique constraint "handle_handle_key" | This error means that while submitting one or more AIPs, DSpace encountered a Handle conflict. This is a general error the may occur in DSpace if your Handle sequence has somehow become out-of-date. However, it's easy to fix. Just run the |