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Method and system for purging tombstones for deleted data items in a replicated database

  • US 6,256,634 B1
  • Filed: 06/30/1998
  • Issued: 07/03/2001
  • Est. Priority Date: 06/30/1998
  • Status: Expired due to Term
First Claim
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1. A method of purging tombstones for memorializing deleted data items in a replicated database in which a slave server maintains a replica of data items stored by a master server, comprising the steps of:

  • performing a deletion by a master server to delete a data item stored by the master server;

    setting up by the master server a tombstone for the deleted data item;

    transmitting, from the master server to the slave server, a replication packet containing replication data regarding the deletion; and

    purging, by the master server, the tombstone for the deleted data item after an age of the tombstone has reached a pre-selected threshold.

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