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Oracle® SuperCluster M8 and SuperCluster M7 Administration Guide

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Updated: June 2020

Fast Connection Failover

A grid link data source uses fast connection failover to:

  • Provide rapid failure detection.

  • Abort and remove invalid connections from the connection pool.

  • Perform graceful shutdown for planned and unplanned Oracle RAC node outages. The data source enables in-progress transactions to complete before closing connections. New requests are load balanced to an active Oracle RAC node.

  • Adapt to changes in topology, such as adding a new node.

  • Distribute runtime work requests to all active Oracle RAC instances.

Refer to “Fast Connection Failover” in the Oracle Database JDBC Developer's Guide and Reference at: http://docs.oracle.com/cd/B19306_01/java.102/b14355/fstconfo.htm.

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