Apparatus and method for coordinating logical data replication with highly available data replication
In a database apparatus, a critical database server includes a primary server supporting a primary database instance and a secondary server supporting a secondary database instance that mirrors the primary database instance. The secondary server generates an acknowledgment signal indicating that a s...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | In a database apparatus, a critical database server includes a primary server supporting a primary database instance and a secondary server supporting a secondary database instance that mirrors the primary database instance. The secondary server generates an acknowledgment signal indicating that a selected critical database transaction is mirrored at the secondary database instance. A plurality of other servers each support a database. A data replicator communicates with the critical database server and the other servers to replicate the selected critical database transaction on at least one of said plurality of other servers responsive to the acknowledgment signal. |
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