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# Hash RDF Graph

* assigned: bonfacem

## Description

Building the index is an expesive operation.  Hash the graph and store the metadata in xapian, and similarly in the RDF store.  The mcron-job should check whether this has changed, and if there's any difference, go ahead and re-build the index.

Resolution:

=> https://github.com/genenetwork/genenetwork3/pull/171 Improve Sharing Memory Across Processes.
=> https://github.com/genenetwork/genenetwork3/pull/172 Check whether table names were stored in xapian.
=> https://github.com/genenetwork/genenetwork3/pull/174 Wikidata index.
=> https://github.com/genenetwork/genenetwork3/pull/175 Refactor how the generif md5 sum is calculated and stored in XAPIAN.

* closed