Migrate data from database on MarkLogic 7 to database on MarkLogic 9

Question

I need to copy data from a MarkLogic 7 database to MarkLogic 9 database on another system. I tried backup and restore option provided by the MarkLogic Admin console. The original database in MarkLogic 7 had only 1 forest attached to it. I created a new database with the same name in MarkLogic 9. Also created a new forest in MarkLogic 9 with the same name as in MarkLogic 7 attached to it. I am not sure where i am doing it wrong.

Steps followed in detail:

Go to MarkLogic 7 Admin console.
Go to Configure -> Databases -> <database_name> -> Backup/Restore tab
Enter the path to store the backup.
Select 'true' for Include replica forests.
Select 'false' for Archive journals.
Click 'OK' button.
Go to MarkLogic 9 Admin console.
Go to Configure -> Databases -> <database_name> -> Backup/Restore tab
Enter the path to restore the backup from.
Select 'true' for Include replica forests.
Select default values for other radio buttons.
Click 'OK' button.
I receive the following error:

Operation failed with error message:XDMP-BACKUPEMPTY: xdmp:database-restore((), "", (), fn:false(), (), fn:false(), (),"") -- No forests specified for backup or restore.. Check server logs.

Try setting `forest topology changed` to true. It should allow you to see which forests are contained in the backup, and where those forests should be restored. — Mike Gardner, Jun 14 '19 at 19:03
Also, just to verify...you are going from ML 7 on RHEL/CENTOS 6 to ML 9 on RHEL/CENTOS 7? — Mike Gardner, Jun 14 '19 at 19:04
Thanks @MichaelGardner. Setting the `forest topology changed` to true did the trick. — Nishant Kshirsagar, Jun 17 '19 at 15:31

score 2 · Accepted Answer · answered Jun 17 '19 at 15:41

2

While restoring the backup selecting the forest topology changed to true worked for me. Thanks Michael Gardner for the comment.

Refer this image

answered Jun 17 '19 at 15:41

Nishant Kshirsagar

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Migrate data from database on MarkLogic 7 to database on MarkLogic 9

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