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Posted to commits@jackrabbit.apache.org by Apache Wiki <wi...@apache.org> on 2009/12/03 12:41:38 UTC

[Jackrabbit Wiki] Update of "DataStore" by ThomasMueller

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The "DataStore" page has been changed by ThomasMueller.
http://wiki.apache.org/jackrabbit/DataStore?action=diff&rev1=55&rev2=56

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  The main advantages of the data store over the blob store are: unlike the blob store, the data store keeps only one copy per object, even if it is used multiple times. The data store detects if the same object is already stored and will only store a link to the existing object. The data store can be shared across multiple workspaces, and even across multiple repositories if required. Data store operations (read and write) don't block other users because they are done outside the persistence manager. Multiple data store operations can be done at the same time.
  
- Migration: currently there is no special mechanism to migrate data from a blob store to a data store. The only known way to convert is to export the data, and re-import into a new repository.
+ Migration: currently there is no special mechanism to migrate data from a blob store to a data store. You will have to convert the whole repository, see also BackupAndMigration.
  
  == How Does It Work ==