Package org.apache.hadoop.ha

Interface Summary
FenceMethod A fencing method is a method by which one node can forcibly prevent another node from making continued progress.
HAServiceProtocol Protocol interface that provides High Availability related primitives to monitor and fail-over the service.
 

Class Summary
HAServiceProtocolHelper Helper for making HAServiceProtocol RPC calls.
HAServiceTarget Represents a target of the client side HA administration commands.
 

Exception Summary
BadFencingConfigurationException Indicates that the operator has specified an invalid configuration for fencing methods.
FailoverFailedException Exception thrown to indicate service failover has failed.
HealthCheckFailedException Exception thrown to indicate that health check of a service failed.
ServiceFailedException Exception thrown to indicate that an operation performed to modify the state of a service or application failed.
 



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