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Many NoSQL products have sharding built-in. The DBMS itself looks after storing a particular key range on a certain server and keeping redundant copies for high availability. Client connections are routed within the DBMS rather than in the application. Multi-server scale out becomes easy, at the cost of CAP compromises.


How you did delete the edges? Please use DELETE VERTEX, not plain SQL DELETE to preserve edges. Starting from 2.0.x, OrientDB provided a warning to avoid deletion of verices/edges by using SQL DELETE.

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