ee.telekom.workflow.core.recovery

Interface RecoveryService

All Known Implementing Classes:

RecoveryServiceImpl

public interface RecoveryService

Service method for recovering from engine failures. The engine may fail or leave data in an inconsistent state if it is not shutdown in a clean way or if there are other hardware/network failures. Two kinds of problems may arise from such a failure scenario.

1. A workflow instance is locked and assigned to a node but the node has failed/is dead.
2. A workflow instance is locked AND it is not in the queue AND it is not assigned to a node.

Method Summary

Modifier and Type	Method and Description
void	recoverExecutionsAssignedToNodes(List<String> deadNodes) Recovers all workflow instance's with the first above mentioned problem.
void	recoverExecutionsNotAssignedToNodes(String clusterName) Recovers all workflow instance's with the second above mentioned problem.

Method Detail

recoverExecutionsAssignedToNodes

void recoverExecutionsAssignedToNodes(List<String> deadNodes)

Recovers all workflow instance's with the first above mentioned problem.

Parameters:

deadNodes - the nodes that are dead/failed.

recoverExecutionsNotAssignedToNodes

void recoverExecutionsNotAssignedToNodes(String clusterName)

Recovers all workflow instance's with the second above mentioned problem.

Parameters:

clusterName - this cluster's name