[Jackrabbit Wiki] Update of "DataStore" by ThomasMueller

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The following page has been changed by ThomasMueller:
http://wiki.apache.org/jackrabbit/DataStore

The comment on the change is:
more feature request

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  Other feature requests:
   * A replicating data store
+  * Currently the File``Data``Store creates a lot of directories (and files). If possible the number of directories (and maybe files) should be reduced to improve performance. 
+  * Fulltext search and meta data extraction could be done when storing the object (only once per object) and stored next to the object. 
+  * Client should first send the checksum and size of large objects when they store something (import, adding or updating data), in many cases the actual data does not need to be sent.