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NON-DISRUPTIVE DATA MOVEMENT AND NODE REBALANCING IN EXTREME OLTP ENVIRONMENTS

  • US 20120158805A1
  • Filed: 12/16/2010
  • Published: 06/21/2012
  • Est. Priority Date: 12/16/2010
  • Status: Active Grant
First Claim
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1. A method for non-disruptive movement of data partitions in a data grid within a database environment, the method comprising:

  • creating a time tag indicating the state of data at a point in time within a plurality of in-memory database (IMDB) system nodes organized as a data fabric of the data grid;

    moving data pages from a plurality of source nodes to a plurality of destination nodes, wherein changes by applications to data pages on the plurality of source nodes are allowed during the moving;

    propagating data changes from the plurality of source nodes to the plurality of destination nodes;

    freezing data page changes on the plurality of source nodes;

    instructing applications to perform future data page changes on the plurality of destination nodes; and

    switching data page ownership to the plurality of destination nodes.

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