Sun Cluster Data Service for Sun Java System Application Server Guide for Solaris OS

Highly Available Transaction Logs

The Sun Cluster HA for Sun Java System Application Server makes the transactions highly available. When a node running an instance of the Sun Java System Application Server crashes, transactions are lost unless they are recovered by other running instances, running on a different node. Transactions can also be recovered by restarting the crashed server instance on the same node or on a different node. Because the Node Agents are configured as a failover data service, the data service fails over the crashed instances to other Sun Cluster nodes so that when the server is starting up on a new Sun Cluster node the transactions are recovered.